Model Question Papers

For Undergraduate Programs

All India Council for Technical Education

Nelson Mandela Marg, Vasant Kunj, New Delhi- 110070

For Undergraduate Programs

Programs Page No.

1. Civil Engineering CE1-CE14

2. Computer Science and Engineering CSE1-CSE29

3. Electrical and Electronics Engineering EEE1-EEE23

4. Electronics and Communication Engineering ECE1-ECE31

5. Mechanical Engineering ME1-ME32

All India Council for Technical Education

Civil Engineering

Model Question Papers

For Undergraduate Program

The model question papers are suggestive blueprints. The primary aim of these

question papers is to bring clarity about the process of connecting questions to

performance indicators and hence to course outcomes. Further, these question

papers demonstrate how bloom’s taxonomy can be used to understand the quality

of question papers and their effectiveness in assessing higher order abilities. The

structure of question papers, number of questions, choices given, time given for

examination etc., can vary based on the practices of the University or college.

All India Council for Technical Education

Table of Contents

Name of Course Page No.

1. Advanced Geotechnical Engineering CE1-CE3

2. Construction Project Management CE4-CE6

3. Advanced Project Management CE7-CE9

4.

Design of RCC Structures

CE

10

-

CE

11

5. Environmental Engineering CE12-CE14

All India Council for Technical Education

Model Question Paper

Civil Engineering

Course Name: Advanced Geotechnical Engineering

Course Outcomes (CO):

At the end of the course the student should be able to:

1. Plan soil exploration program, interpret the results and prepare soil exploration report.

2. Compute active and passive earth pressure.

3. Carry out stability analysis of finite and infinite slopes with some field problem.

4. Compute safe bearing capacity of shallow foundations.

5. Design pile and pile group.

6. Carry out settlement analysis of footings.

7. Assess the potential of soil for the design of landfills and reinforced earth wall.

Model Question Paper

Total Duration (H:M):3:00

Course :Advanced Geotechnical Engineering

Maximum Marks :100

Q.No.

Questions

Marks

CO

BL

PO

PI

Code

1a

You are appointed as site engineer and have been tasked to carry out

site investigations for an earth dam construction site.

Describe the investigation procedure and discuss what information is

required for the preparation and presentation of the report.

8

CO1

L3

1

1.3.1

1b

A standard penetration test was carried out at a site. The soil profile

is given in figure 1(b) below with the penetration values. The average

soil data are given for each layer. Compute the corrected values of N

and plot showing the variation of observed and corrected values with

depth.

Fig 1(b)

6

CO1

L3

4

1.3.1

1c

The unit weight of a soil of a 30° slope is 17.5kN/m

3

. The shear

parameters c and  for the soil are 10 kN/m

2

and 20° respectively.

Given that the height of the slope is 12 m and the stability number

obtained from the charts for the given slope and angle of internal

friction is 0.025, compute the factor of safety.

6

CO3

L2

1

1.3.1

2a

For the retaining wall shown in figure 2(a), draw the active earth

pressure distribution diagram and obtain total active force on the wall.

8

CO2

L3

2

2.1.2

All India Council for Technical Education

Model Question Paper

Civil Engineering

CE1

Fig 2(a)

2b

A retaining wall 4.5 m high with a vertical back supports a horizontal

fill weighing 18.60 kN/m

3

and having ϕ = 32°, δ = 20°, and c = 0.

Determine the total active thrust on the wall by Culmann’s graphical

method.

12

CO2

L3

1

1.3.1

3a

A canal having side slope 1:1 is proposed to be constructed in

cohesive soils to a depth of 4.5m below the ground surface. The soil

properties are a given below;



u

=15, c

u

=10kN/m

2

. e=1.0 G=2.65. find the factor of safety with

respect to cohesion against failure of bank slopes;

i) When the canal is full of water and.

ii) When there is sudden draw down of water in canal.

8

CO3

L3

2

2.1.2

3b

Determine the depth at which a circular footing 2m diameter be

founded to provide a factor of safety of 3.0. If it has to carry a safe

load of 1500 kN. The foundation soil has c=15 kN/m

2

, ϕ=30 and unit

weight of soil =18kN/m

3

.

7

CO4

L3

2

2.1.2

3c

A large scale bearing capacity test on a footing of size 1.05mX1.05m

at a depth of 1.5m yielded an ultimate value of 141 kN. Unconfined

compressive tests on the soft saturated clay yielded a strength of 0.03

N/mm

2

. If the unit weight of the soil is 16 kN/m

3

, how much does the

test value differ from that obtained using Terzaghi’s bearing capacity

equation?

5

CO4

L3

2

2.1.2

4a

Design a pile foundation system in 20 m thick soft clay with undrained

cohesion of 60kPa, density of 18kN/m

3

and water content of 30%. The

clay layer is underlined by hard rock. The pile foundation should carry

a load of 6500 kN. Take liquid limit=60%, G=2.7.

12

CO5

L3

2

2.2.3

4b

A soil profile at a site consists of 4.0m of medium sand with dry unit

weight of 17 kN/m

3

, underlain by a normally consolidated layer of

2.0m thick clay. The initial void ratio of clay is 1.0 its saturated unit

weight is 20 kN/m

3

and its liquid limit is 50%. The ground water table

is at the top of the clay layer. A square footing 2m x 2m is founded at

a depth of 1.0 m below the GL at the site. The load on the footing is

1200 kN. Calculate the settlement of footing due to consolidation of

the clay layer.

8

CO6

L3

2

2.1.2

5a

Check the reinforced earth wall shown in figure 5(a) for stability

against a) sliding b) over turning and c) bearing failure. Although BC

is a rough face, assume it to be smooth.

8

CO7

L3

2

2.1.2

All India Council for Technical Education

Model Question Paper

Civil Engineering

CE2

Fig 5(a)

5b

Site A and Site B are two sites located at a distance 20km and 30km

respectively from a city. Below table gives the details for both sites.

i) What criterions to be considered while selecting a landfill site?

ii) Compare the score of both sites and suggest which site is best

suited for constructing a landfill.

Parameters

weightage

Sensitivity indices

SiteA

Site B

0.25

0.50

0.75

1.00

Distance

(km)

100

10

20

30

40

20

30

Population

within

500m

300

200

400

600

800

600

400

Depth to

GW (m)

400

40

30

20

10

20

40

Soil type

200

Clay

Silt

Sand

Gravel

Silt

gravel

12

CO7

L4

2

2.1.2

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 – Analysing, 5 –

Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

6

82

12

Bloom's Level wise Marks

Distribution

Level 2 Level 3 Level 4

14

20

14

12 12

8

20

0

5

10

15

20

25

CO 1 CO 2 CO 3 CO 4 CO 5 CO 6 CO7

Course Outcome wise

Marks Distribution

All India Council for Technical Education

Model Question Paper

Civil Engineering

CE3

Course Name: Construction Project Management

Course Outcomes (CO):

1. Determine the inter-relationships of construction drawings and specifications and their working in

construction engineering and management.

2. Develop Work Breakdown Structure (WBS) for various types of buildings.

3. Construct a construction project schedule by combining the WBS, duration and networking

methods.

4. Develop a safety protocol for various construction projects depending on the site conditions in

alignment with SP 70 2001 manual.

5. Analyse the various site conditions on a construction project and select construction equipment

best suited for those conditions.

Model Question Paper

Total Duration (H:M): 3:00

Course: Construction Project Management

Maximum Marks :100

Q.No

Questions

Marks

CO

BL

PI

1

Analyze the given drawing to determine the scope of work and sequence the activities

in order of their construction.

20

CO1

L3

2.1.2

All India Council for Technical Education

Model Question Paper

Civil Engineering

CE4

Q.No

Questions

Marks

CO

BL

PI

2

There is an immediate need for the construction of a small concrete bridge between two

villages before the monsoon season arrives, as an assistant engineer in the PWD, your

preceding officer has asked to create a third-level WBS accounting for all the major

milestones to be achieved to aid the estimation process.

20

CO2

L3

3.2.1

3

The following data is for a construction of a commercial complex which your company

is about to build. The activities, durations and the interdependencies were finalized in

the planning meeting. Analyze and determine the earliest duration to execute the

project. Also, determine if there are additional days, other than the planned durations

for the non-critical activities.

Activity

Duration (Weeks)

Interdependency

Site Clearance

4

-

Surveying

2

Site Clearance

Excavation

4

Site Clearance,

Surveying,

Foundation

5

Excavation

Superstructure

15

Foundation

Plastering

4

Superstructure

Painting

6

Superstructure,

Plastering

Flooring

4

Plastering, Flooring

Clean up

2

Plastering, Painting,

Flooring.

20

CO3

L3

2.2.3

4

Develop a detailed safety protocol in accordance with SP 70 (Handbook on Construction

safety practices) for the following projects:

i. Residential Apartment Complex

ii. Highway Construction

20

CO4

L3

2.2.3

5

An electrical sub-station is to be built on a 7 acres of land. The following is the scope of

work to be completed by your company. The project is to be completed in 4 months.

i. Clearing of vegetation on site, which includes trees, shrubs and grass.

ii. Removing of top 1 meter soil and hauling it off to a dump site located 8 KMs

from the worksite.

iii. Compacting the natural ground for 94 % Proctor Density.

iv. Placing of aggregates to the specified level as mentioned in the drawing.

v. Compacting the placed aggregates for Modified Proctor Density of 98 %.

vi. Excavating for 85 piers of specified diameter.

vii. Placing Concrete in the piers.

viii. Asphalt of 6 inches over the aggregate base for the entire sub-station.

ix. Machine control is to be used for excavation and aggregate placement.

Analyze the scope of the project and select at least two types of construction equipment

to be used for this project. Compare and finalize the best fit.

20

CO5

L4

2.2.3

All India Council for Technical Education

Model Question Paper

Civil Engineering

CE5

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 –

Analysing, 5 – Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

20 20 20 20 20

0

5

10

15

20

25

CO 1 CO 2 CO 3 CO 4 CO 5

Course Outcome wise

Marks Distribution

80

20

Bloom's Level wise Marks

Distribution

Level 3 Level 4

All India Council for Technical Education

Model Question Paper

Civil Engineering

CE6

Course Name: Advanced Project Management

Course Outcomes (CO):

1. Assess the importance of monitoring and control phase during the execution of a construction project.

2. Combine estimating and scheduling and develop a cost loaded schedule which will combine both cost

and time aspects into one cost loaded schedule.

3. Develop earned value reports to know the progress of the project at any instant of the project duration.

4. Evaluate the various bidding strategies employed in construction.

5. Conduct risk analysis to determine the probable risks involved and place appropriate mitigation measures

in place.

Model Question Paper

Total Duration (H:M): 3:00

Course: Advanced Project management

Maximum Marks :100

Q.No

Questions

Marks

CO

BL

PI

1

The following is the planned crew and quantity for the excavation activity.

The scheduled work days is 6 days. The planned quantity is 3000 Cubic

meters. Determine the planned total cost and unit cost for this activity.

Labor Force Required

Total Number

Per Day Rates

Back Hoes

07

₹ 1000/day

Operators

07

₹ 550/day

Dump Trucks

10

₹ 600/day

Dump Truck Drivers

10

₹ 350/day

After 3 days, the following is the report generated from the site.

Amount of work done: 1200 cubic meters. The crew worked for 8 hours/day

for all the 3 days. Determine the cost that was spent for these 3 days.

Comment on the productivity of the crew. Calculate the cost required to

complete the work in the remaining 3 days. Analyze the given situation and

determine whether additional crew is a better option compared to over-time

for the existing crew.

20

CO1

L4

2.2.1

2

A typical small house construction project consists of the following

operations along with the time set for its completion.

Operation (Activities)

Time (in days)

Cost (in Rupees)

Survey, design and Layout

6

10000

Construction of foundation

5

26000

20

CO2

L4

13.1.3

All India Council for Technical Education

Model Question Paper

Civil Engineering

CE7

Q.No

Questions

Marks

CO

BL

PI

Construction of Superstructure

11

80000

Roofing

5

34000

Fixing door and window frames

3

16000

Plumbing and Drainage

4

12000

Electric Fitting

4

19000

Plastering

4

7000

Flooring

4

32000

Carpentry work

2

10000

Painting

3

8000

The project starts on Monday 16

th

November 2018. Assume 5 days-work

week. The following data was collected from the job site.

Operation

Percentage

Complete

Actual Cost (in

Rupees)

Survey, design and Layout

100 %

11600

Construction of foundation

100 %

25200

Construction of Superstructure

80 %

76000

Roofing

25 %

12000

At present the data date is Friday, 11-12-2018.

i. Determine the total duration of the project. State any assumptions you

make.

ii. Compile PV (Planned Value), EV (Earned Value) and AC (Actual

Cost) from the data provided.

iii. Analyze the status of the project (using EVA) and create a status report.

Comment on the forecast of the project.

3a

A project consists of 8 activities from A to F. The following is the progress

report sent to you from the field after 2 months. The project was planned to

be completed till activity D after 2 months. Analyse the project. Also

comment on the status of each individual activity in terms of profit/loss.

S. No.

Activity

Planned Value

Actual Cost

Percentage

Complete

1

A

10000

9500

100%

2

B

25000

26300

100%

3

C

32000

35000

96%

4

D

28000

17000

72%

5

E

56000

30000

46%

20

CO3

L3

11.3.1

All India Council for Technical Education

Model Question Paper

Civil Engineering

CE8

Q.No

Questions

Marks

CO

BL

PI

6

F

87000

24000

34%

7

G

96000

8

H

68000

4a

There is a call for tender for construction of stadium in your city, only few

reputed private construction companies have been asked to participate in the

tender by the governing body, your company is one of them. Your boss asks

you to prepare the necessary document which is required for the tendering work

for the construction of stadium.

12

CO4

L2

11.3.1

4b

Discuss the different type of bidding models

08

CO4

L2

1.3.1

5

Your company has just won a bid to construct an electrical sub-station over 5

acres of land which is covered with vegetation. The major activities of the

project are site clearance, surveying, subgrade base, piers and bolts, control

room, asphalt base, painting and clean-up. Evaluate the project and list all risks

that could occur on this project. List the mitigation techniques to be placed to

counter the identified risks.

20

CO5

L3

2.1.1

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 –

Analysing, 5 – Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

20 20 20 20 20

0

5

10

15

20

25

CO 1 CO 2 CO 3 CO 4 CO 5

Course Outcome wise

Marks Distribution

20

40

Bloom's Level wise Marks

Distribution

Level 2 Level 3 Level 4

All India Council for Technical Education

Model Question Paper

Civil Engineering

CE9

Course Name: Design of RCC Structures

Course Outcomes (CO):

1. Assess different design philosophies of R.C.C. structure and relative merits and

demerits.

2. Analyze the structure for different methods under limit state design philosophy.

3. Estimate the moment carrying capacity and serviceability criteria of various structural

elements.

4. Design the reinforced concrete sections such as beams, slabs, columns, footings and

staircase.

5. Detail the bar bending scheme of the RCC structural elements.

Model Question Paper

Total Duration (H:M):3:00

Course: Design of RCC Structures

Maximum Marks :100

Q.No

Questions

Marks

CO

BL

PI

1(a)

What are the different limit states of design? What are the merits of

limit state design over other philosophies?

10

2

L2

1.3.1

1(b)

A RC beam 200mm wide and 500mm deep is reinforced with 3nos of

16mm dia bars. Find moment of resistance of beam. Effective span is 5m.

If effective cover is 40mm find safe working load as well as super imposed

load. Use M25 grade concrete and Fe500 grade steel.

10

3

L3

1.3.1

2(a)

Derive the stress block parameters for compressive force Cu and Tensile

force Tu using limit state method of design.

5

1

L2

1.3.1

2(b)

A singly reinforced rectangular section of breadth 200mm and effective

depth 400mm is made up of concrete of M20 grade and steel of Fe500

grade. Find out following

1. Calculate maximum moment of resistance that a given section can

offer and also what is corresponding area of steel.

2. Find moment of resistance and area of steel if depth of N.A. is

restricted to 0.3d.

3. If c/s is reinforced with 4% of c/s size of beam find X

u

for steel to

fail and also moment of resistance at that instance.

4. Check whether given c/s can withstand an ultimate B.M. of

100kNm. If not suggest alternate solution.

15

3

L4

1.3.1

3

A Room is having clear dimensions of 3m x 6m. The superimposed live

load on slab is 10 kN/m

2

, at service state. The slab is simply supported on

all the four sides on a wall of 300mm thickness. The corners are held

down. Decide whether the slab is designed as one way slab or two way

20

4

L3

2.3.1

All India Council for Technical Education

Model Question Paper

Civil Engineering

CE10

Q.No

Questions

Marks

CO

BL

PI

slab giving proper justifications. Design the slab using M-20 grade of

concrete and Fe-415 grade of steel. Sketch the reinforcement details.

4

A rectangular beam of effective span 6m needs to be designed. The

superimposed load on the beam is 50kN/m. The c/s size of the beam is

restricted to 300mmX600mm by the architect. List out different types of

beams that can be provided under these circumstances. Design the beam

which gives you optimal solution.

20

4

L4

2.3.1

5(a)

State and explain the basic assumptions made for design of columns under

axial compression and uniaxial bending.

10

4

L2

1.3.1

5(b)

Design a rectangular R.C. footing for an R.C. column 230 mm x 450 mm

carrying an axial load of 1500 kN. The S.B.C. of the soil is 150 kN/m

2

.

Sketch the reinforcement details.

10

5

L3

2.3.1

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 –

Analysing, 5 – Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

5

10

25

50

10

0

10

20

30

40

50

60

CO 1 CO 2 CO 3 CO 4 CO 5

Course Outcome wise

Marks Distribution

25

40

35

0

Bloom's Level wise Marks

Distribution

Level 2 Level 3 Level 4

All India Council for Technical Education

Model Question Paper

Civil Engineering

CE11

Course Name: Environmental Engineering (15ECVC204)

Course Outcomes (CO):

1. Discuss the impact of human activities on environment

2. Predict the population at the end of the design period and estimate the water demand

of the city

3. Calculate the BHP of pump to lift the water from the source and convey to the

treatment plant

4. Analyze the quality of water and design the treatment units required to meet BIS

guidelines.

5. Calculate the capacity of storage reservoir required for the distribution of water

6. Estimate the quantity of sewage generated for different sewerage systems and design

the sewer for different depths of flow to ensure self –cleansing velocity

7. Analyze the constituents of concern in domestic waste water and describe the

appropriate processes for target pollutants to be removed.

8. Design the treatment process to treat the waste water to meet the desired limits

9. Explain the process of self-purification of the sources of disposal and determine the

degree of treatment of sewage based on source of disposal of waste water

Model Question Paper

Total Duration (H:M):3:00

Course: Environmental Engineering

Maximum Marks: 100

Q.No

Questions

Marks

CO

BL

PI

1(a)

Predict the population of the city in the year2040 and also estimate the

design demands of the water supply scheme. The census report is as

follows:

Census Year

Population

1960

31500

1970

37800

1980

51700

1990

57400

2000

59200

2010

67500

Assume that the city is rapidly advancing.

10

CO2

L3

1.1.1

1(b)

Discuss the impact of human activities on environment

06

CO1

L2

7.1.1

All India Council for Technical Education

Model Question Paper

Civil Engineering

CE12

Q.No

Questions

Marks

CO

BL

PI

1 ( c)

Discuss the criteria for selection of an indicator organisms

04

CO4

L2

1.2.1

2 (a)

For the water supply of a small town, water is required to be pumped from

a tube well to an overhead tank. Work out the capacity of the pump. The

data are given as below.

Daily demand of water 750 m

3

Hours of pumping 8

Water table below ground level 8 m

Height of the tank above ground level 14 m

Loss of head in the pump and rising main 1.75 m

10

CO3

L3

1.3.1

2 (b)

Enumerate the impurities in ground water which should be taken into

account in deciding the potability of a sample. State the effects when they

exceed the prescribed BIS limits.

10

CO4

L2

1.2.1

3 (a)

Design Clari-flocculation units to treat 15 MLD of water.

12

CO4

L3

2.1.2

3(b)

For the water supply of a small rural town with daily requirements of 225

m

3

of water, it is proposed to construct a distribution reservoir. The pattern

of draw off is as follows

7am--8 am

30% of day’s supply

8 am---5 pm

35% of day’s supply

5 pm –6.30pm

30% of day’s supply

6.30pm ---7

05% of day’s supply

The pumping is done at a constant rate of 8 hours/day (8am- 4 pm).

Determine the total capacity of service reservoir .The population of the

town is 50,000.

08

CO5

L3

1.3.1

4(a)

Design a combined outfall sewer running 70 % full at maximum flow of

sewage for a city having catchment area of 200 hectare, rainfall intensity

20 mm/hr all of which is runoff. Projected population of the city is 4

lakh. Water to the city is supplied from the water works at a rate of 250

lpcd. The sewer is to be laid at a slope of 1 in 450. Take N= 0.013.

8

CO6

L4

2.1.2

4(b)

The following observation was made on a 3% dilution of sewage.

6

CO7

L3

All India Council for Technical Education

Model Question Paper

Civil Engineering

CE13

Q.No

Questions

Marks

CO

BL

PI

DO of aerated water for dilution 3 mg/l

DO of diluted sample after 5 day incubation 0.8 mg/l

DO of original sample 0.6 mg/l

Calculate BOD, Ultimate BOD and 3 days BOD at 37

0

C.

Take k= 0.23/d

1.1.1

4( c)

Explain the working of a grit chamber with a neat sketch

6

CO7

L2

1.3.1

5(a)

Design ASP to treat settled sewage of 10 MLD having a BOD of 180

mg/l ,it is desired to produce a filter effluent having a BOD 20 mg/l

12

CO8

L4

2.1.2

5(b)

A city discharges 1500l/s of sewage into a stream whose minimum rate

of flow is 6000l/s. The 5 day BOD for sewage is 200 mg/l and that of

river is 1 mg/l .The DO content of stream is 90 % of the saturation DO.

If the minimum DO to be maintained in the stream is 4.5 mg/l,

determine the degree of sewage treatment required. Assume K

D

=

0.1/day and K

R

= 0.3/day.

8

CO9

L3

1.3.1

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 –

Analysing, 5 – Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

20 20 20 20

8

12

0

5

10

15

20

25

CO 1 CO 2 CO 3 CO 4 CO 5 CO 6

Course Outcome wise

Marks Distribution

40

42

18

Bloom's Level wise Marks

Distribution

Level 2 Level 3 Level 4

All India Council for Technical Education

Model Question Paper

Civil Engineering

CE14

Computer Science & Engineering

Model Question Papers

For Undergraduate Program

The model question papers are suggestive blueprints. The primary aim of these

question papers is to bring clarity about the process of connecting questions to

performance indicators and hence to course outcomes. Further, these question

papers demonstrate how bloom’s taxonomy can be used to understand the quality

of question papers and their effectiveness in assessing higher order abilities. The

structure of question papers, number of questions, choices given, time given for

examination etc., can vary based on the practices of the University or college.

All India Council for Technical Education

Table of Contents

Name of Course Page No.

1. Discrete Mathematical Structures CSE1-CSE5

2.

Data Structures and Algorithms

CSE

6

-

CSE

9

3. Computer Organization & Architecture CSE10- CSE14

4.

Machine Learning

CSE

1

5

-

CSE

1

8

5. Operating System CSE19- CSE23

6.

Data Mining and Analysis

CSE

24

-

CSE

29

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

Course Name: Discrete Mathematical Structures

Course Outcomes (CO):

1. Apply logic and rules of inference to draw a conclusion from a set of premises in a

finite sequence of steps.

2. Apply principles of sets operations and functions.

3. Apply various operations on sets and represent them using Venn diagram.

4. Use the fundamental counting principles to determine the number of outcomes for a

specified problem.

5. Develop the recurrence relation for the given problems

6. Discuss and differentiate the types of functions, relations and groups.

Model Question Paper

Total Duration (H: M): 3:00

Course: Discrete Mathematical Structures

Maximum Marks: 100

Note: Answer Any two questions from UNIT I, UNIT II and one question from UNIT III

Q.No

Questions

Marks

CO

BL

PI

UNIT I

1a

In asynchronous transfer mode (ATM), data are organized into cells of

53 bytes. Identify the range (number of ATM cells transmitted ) for the

domain (minutes) set M={1, 2, 3, 4, 5, 6} if connection that transmits

data at the rate of

i) 128 kilobits per second

ii) 300 kilobits per second

iii) 1 megabit per second

10

CO2

L3

1.1.1

1b

Write the propositions for the following English statements.

To use the wireless network in the airport you must pay the daily fee

unless you are a subscriber to the service.

Express your answer in terms of

w: You can use the wireless network in the airport.

d: You pay the daily fee. and

s: You are a subscriber to the service.

5

CO 1

L3

1.1.1

1c

Let p,q and r be the propositions

P: You have attended cultural audition.

q: You miss the first minor exam.

r: You will not get the make-up exam.

Express each of these propositions as an English sentence

i) (p→¬ r) (q→¬ r)

ii) (pq)  (¬q r)

iii) ¬q↔r

5

CO1

L2

1.1.1

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE1

Q.No

Questions

Marks

CO

BL

PI

2a

Let A, B, and C be sets. Show that    



= ( 



 



) ∩



5

CO 2

L2

1.1.1

2b

Consider the following system specifications using the propositions

“The message is scanned for viruses” or “The message was sent from

an unknown system”

“When a message is not sent from an unknown system it is not

scanned for viruses.”

“The message is scanned for viruses”

Is the specification consistent? Justify your answer

5

CO 1

L3

1.1.1

2c

Consider the combinatorial circuit shown in below figure and answer

the following.

(a)

(b)

1. Find the output of combinatorial circuits (a) and (b).

2. Write the simplified form of negation of the output.

3. Assume appropriate p, q and r and express the output in English

sentence.

10

CO1

L3

1.1.1

3a

Let f, g, h be functions from R → R where f(x)=x

2

,g(x) =x+5

and h(x)

=

2

+x

.Determine ((h o g) o f) (x).

5

CO 2

L2

1.1.1

3b

Identify which of the following propositional statements are tautology

using laws of equivalence.

i)

)rqp()]rqp(qp[ ⎯→

ii) ¬ (p→q) →¬ q

10

CO 1

L3

1.1.1

3c

State whether the following statements are true or false

i) Every infinite sets are countable

ii) Every relation is not necessarily function

iii) What time is it? is a proposition

iv) Every bijective functions are inverse functions

v) (f ◦ g)(a) = f (g(a)).

5

CO 2

L3

1.1.1

UNIT II

4a

Suppose that at some future time every telephone in the world is

assigned a number that contains a country code 1 to 3 digits long, that

is, of the form X, XX, or XXX, followed by a 10-digit telephone

6

CO4

L3

1.1.1

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE2

Q.No

Questions

Marks

CO

BL

PI

number of the form NXX-NXX-XXXX. How many different

telephone numbers would be available worldwide under this numbering

plan?

b

How many positive integers between 100 and 999 inclusive

i) are divisible by 7?

ii) are not divisible by 4?

iii) are divisible by 3 and 4?

iv) are divisible by 3 or 4?

v) are divisible by 3 but not by 4 and 7?

8

CO4

L3

1.1.1

c

For the relations R

1

={(a,b), (a,c), (b,d), (d,d)} and R

2

={(a,a), (a,d),

(b,a), (b,b), (c,e), (d,d), } on sets {a,b,c,d,e} to {a,b,c,d,e} determine

R

2

◦R

1.

Represent the output relation using directed graph.

6

CO3

L2

1.1.1

5a

Consider the following relation R={(1,1),(1,2),(1,3),(1,4),

(2,2),(2,3),(2,4),(3,3),(3,4),(4,4)} defined over the set S={1,2,3,4}

i) Is (S,R) is a Poset? Justify your answer.

ii) Is (S,R) Linearly ordered? Justify your answer.

iii) Is (S,R) Well-ordered? Justify your answer.

iv) Identify the minimal, maximal, greatest and least elements

v) Identify the lower bound and upper bound for the set {3}and

also find the least upper bound and greatest lower bound.

10

CO3

L3

1.1.1

b

In how many possible orders a student can answer 5 questions in the

SEE exams considering the following conditions

i) There are 3 units UNIT1, UNIT2 and UNIT3 consisting of 3, 3

and 2 questions respectively.

ii) Student has to answer 2 questions from UNIT 1 , 2 questions

from UNIT 2 and one from UINIT 3

6

CO4

L2

1.1.1

c

In order to conduct the SEE examination, In how many ways seating

arrangement can be made for 240 CS students and 240 EC students

such that CS and EC students should sit alternatively.

4

CO4

L3

1.1.1

6a

School of Computer Science and Engineering is planning to create a

Computer network lab of 15 computers. In how many ways every

computer is connected to every other computer for each of the

following assumptions.

i) Every computer is implicitly connected to itself

ii) Every computer is explicitly connected to itself

iii) Every connection is one-way communication

iv) Every connection is two-way communication

8

CO4

L3

1.1.1

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE3

Q.No

Questions

Marks

CO

BL

PI

b

Let R be the relation on the set of people with doctorates such that (a,

b) Є R if and only if ‘a’ was the thesis advisor of ‘b’. When is an

ordered pair (a, b) in R

2

? When is an ordered pair (a, b) in R

n

, when n

is a positive integer? (Assume that every person with a doctorate has a

thesis advisor.)

8

CO3

L3

1.1.1

c

Let R1 and R2 be the “congruent modulo 3” and the “congruent modulo

4” relations, respectively, on the set of integers. That is, R1 = {(a, b) |

a ≡ b (mod 3)} and R2 = {(a, b) | a ≡ b (mod 4)}. Find i) R1 U R2. ii)

R1 ∩ R2. iii) R1 − R2. iv) R2 − R1.

4

CO3

L2

1.1.1

UNIT III

7a

A vending machine dispensing books of stamps accepts only one-

dollar coins, $1 bills, and $5 bills.

a) Find a recurrence relation for the number of ways to deposit n

dollars in the vending machine, where the order in which the coins

and bills are deposited matters.

b) What are the initial conditions?

c) How many ways are there to deposit $10 for a book of stamps?

6

CO5

L3

1.1.2

b

Solve these recurrence relations together with the initial conditions

given.

i. a

n

= 2a

n−1

for n ≥ 1, a

0

= 3

ii. a

n

= a

n−1

for n ≥ 1, a

0

= 2

6

CO5

L2

1.1.2

c

a) Find a recurrence relation for the number of steps needed to solve

the Tower of Hanoi puzzle.

b) Show how this recurrence relation can be solved using iteration.

8

CO5

L3

1.1.2

8a

i) Check whether the binary operation * is commutative and

associative on the seta) On Z, where a*b is ab b) on Z+, where a*b

is a+b+2

ii) Prove or disprove the binary operation on Z+ of a*b = GCD(a,b)

has the idempotent property.

8M

CO6

L3

1.1.1

b

Check whether set Z with the binary operation of subtraction is a semi

group.

6M

CO6

L2

1.1.1

c

Define – i) Group ii) Rings iii) Fields give one example for each

with domain as set of positive integers.

6M

CO6

L2

1.1.1

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE4

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 –

Analysing, 5 – Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

35

25

28

32

20 20

0

5

10

15

20

25

30

35

40

CO 1 CO 2 CO 3 CO 4 CO 5 CO 6

Course Outcome wise

Marks Distribution

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE5

Course Name: Data Structures and Algorithms

Course Outcomes (CO):

1. Discuss the C language features and analyze the differences between recursive and

iterative programming structures

2. Analyze the role of data structures in structuring and manipulating data and

implement them using array or list representation

3. Discuss the properties, operations, applications, strengths and weaknesses of the

different data structures and their effect on algorithms

4. Analyze, interpret and compare various sorting, searching and graph algorithms and

perform efficiency analysis

5. Discuss the file structures and storage management for efficient access of data

Model Question Paper

Total Duration (H:M): 3:00

Course: Data Structures and Algorithms

Maximum Marks: 100

Q.No

Questions

Marks

CO

BL

PI

1(a)

Suppose we wish to search a linked list of length n, where each element

contains a key k long with a hash function h(k). Each key is a long

character string. How might we take advantage of the hash values when

searching the list for an element with a given key?

4

CO3

L3

1.4.1

1(b)

With the help of suitable code snippets,

Prove That: “Queue is NO more exactly a First In First Out data structure”

6

CO2

L2

1.4.1

1(c)

Using state space tree prove that:

• There is no solution for a 2 queen problem

• There are multiple solutions for a 4 queen problem

10

CO1

L2

1.4.1

2(a)

Differentiate between Structures and Unions with suitable code snippets.

4

CO1

L3

1.4.1

2(b)

A linear probing has a hash function of the form: h(k, i) = (h’(k) + i) mod

m and a quadratic probing has a hash function of the form: h(k, i) = (h’(k)

+ c 1 i + c 2 i 2 ) mod m. Linear probing suffers from a problem known

as primary clustering and quadratic probing from secondary clustering.

Discuss.

6

CO3

L3

1.4.1

2(c)

Consider the circular list given below with string data:

Write a function which will display the output in following fashion:

i think i can

think i can

10

CO2

L3

1.4.1

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE6

Q.No

Questions

Marks

CO

BL

PI

i can

can

At each line, the function should display data from all the nodes present.

After printing each line, an appropriate node has to be deleted.

After printing the last line, “last” pointer should be holding the NULL

value.

3(a)

Write a program to print the nth node from end from a singly linked list.

4

CO2

L3

1.4.1

3(b)

Complete the function described below:

Function Name: summon

Input Params: base address of string

Return Type: base address of summoned string

Description: A magician wants to generate summoning charms. For input

string “firebolt”, the function should produce “summon firebolt”. Do not

use any inbuilt string handling functions.

6

CO1

L3

1.4.1

3(c)

Write the modules to implement the following using Stack data structure:

• Check if the given string is palindrome

• Sort the given set of integers

10

CO3

L3

1.4.1

4(a)

You have been invited to a post-exam party.

i) You walk in and shake everyone’s hand. As the number of attendees N

increases, what is the order of growth to shake everyone’s hand? Justify.

ii) You meet everyone else and during each meeting, you talk about

everyone else in the room. To what efficiency class does this belong to?

Justify.

4

CO3

L4

1.1.2

4(b)

Create a AVL Tree for:

50, 60, 80, 30, 20, 40, 70

Can you perform the three tree traversals on AVL tree? Justify your

answer.

6

CO3

L3

1.4.1

4(c)

Apply Bellman-Ford Algorithm on the given graph.

How is Bellman-Ford different from Dijkstra’s Algorithm?

To what design technique does the algorithm belong to? Explain.

10

CO4

L3

1.4.1

5(a)

Bring out the differences between Prim’s and Kruskal’s algorithm. Also

compare with respect to efficiency analysis.

4

CO4

L2

1.4.1

5(b)

Write a algorithm for given below description:

ALGORITHM CountLeafNodes(T)

// Recursively counts the number of leaf nodes in the tree T

6

CO3

L3

1.4.1

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE7

Q.No

Questions

Marks

CO

BL

PI

5(c)

Apply Quick Sort on the following:

Q U I C K S O R T

Write the efficiency analysis of quick sort (Best, Worst, and Average).

10

CO4

L3

1.1.2

6(a)

Write the algorithm design technique for the given below

algorithms/problems:

i) N-Queen’s Problem

ii) Binary Search

iii) Insertion Sort

iv) AVL Trees

v) Heap Sort

vi) Hashing

vii) Boyer-Moore

viii) Breadth First Search

4

CO4

L2

1.4.1

6(b)

A DNA sequence consists of a text on the alphabet {A, C, G, T} and the

gene or gene segment is the pattern. For the pattern for chromosome-10:

TCCTATTCTT construct the following tables:

i) π- table

ii) Bad Symbol Shift Table

6

CO4

L3

1.4.1

6(c)

Write a function to delete a node from a Binary Search Tree. Suitably

comment the code explaining each of the cases.

10

CO3

L3

1.4.1

7(a)

What are indexed sequential files?

4

CO5

L1

1.4.1

7(b)

Explain fseek( ) API with help of a C suitable program. Explain each of

the parameter it takes in detail.

6

CO5

L3

1.4.1

7(c)

A file consists of binary data. Write a program to read and count the

number of 0’s and 1’s in it. Write the individual count in a separate file.

Also find the size of the file.

10

CO5

L3

1.4.1

8(a)

What do you mean by storage release?

4

CO5

L1

1.4.1

8(b)

Differentiate between the fixed block and variable block storage

management.

6

CO5

L2

1.4.1

8(c)

With a help of a suitable program explain the concept of Bit Maps and

how they can be used as an efficient storage means.

10

CO5

L3

1.4.1

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE8

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 – Analysing, 5 –

Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

20 20

46

34

40

0

10

20

30

40

50

CO 1 CO 2 CO 3 CO 4 CO 5

Course Outcome wise

Marks Distribution

5%

19%

74%

2%

Bloom's Level wise Marks

Distribution

Level 1 Level 2 Level 3 Level 4

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE9

Course Name: Computer Organization & Architecture

Course Outcomes (COs):

At the end of the course the student should be able to:

1.

Design combinational and sequential circuits using digital components.

2.

Analyze different types of communication between processor and peripherals.

3.

Design memory units for given specifications.

4.

Describe the architectures of various processors.

5.

Analyze the performance of pipelined architecture in a processor.

Model Question Paper for End Semester Examination

Course Code:

Course Title: Computer Organization and

Architecture

Duration: 3 hrs

Max. Marks: 100

Note: Answer five questions; any two full questions from each unit-I and unit-II and one full

question from unit-III

Unit-I

Q.No

Questions

Marks

CO

PI

Code

B

L

1 a

Implement the Boolean function

F(A,B,C,D)=BC+AB

C

+A

‟

C

‟

D

using

only

a

single

8X1

Multiplexer where s

ignals

A,B,C,D

and

D

‟

represent the inputs.

6

CO1

1.4.4

L2

b

The circuit diagram of a synchronous counter is shown in the

given figure. Determine the sequence of states of the counter

assuming that the initial state is “000‟. Give your answer in a

tabular form showing the present state QA, QB, QC, J-K inputs

(JA, KA, JB, KB, JC, KC) and the next state QA+, QB+, QC+.

From the table, determine the modulus of the counter.

6

CO1

1.4.4

L3

c

Consider the instruction Load R2,(R3). What control signals

are generated in the datapath during the execution of this

instruction. Justify your answer with proper reasoning.

8

CO2

1.4.4

L3

2 a

Realize a Boolean expression

f(w,x,y,z)=∑m(1,2,6,7,8,9,11,13,14,15) using Multiplexer Tree

structure. The first level should consist of two 4: 1 MUX with

variables w and z on their select lines S1 and S0 respectively

and second level should consist of single 2:1 MUX with

variable y on the select lines

6

CO1

1.4.4

L2

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE10

b

i.

Explain the working of Gated SR latch.

ii.

What is forbidden state?

iii.

Determine the output waveform for a gated SR latch

6

CO1

1.4.4

L3

c

i.

Load R4,(R3)

ii.

Store R4,(R3)

For the above instructions draw the timing diagrams for

synchronous bus operation

8

CO2

1.4.4

L3

3 a

Explain Hardwired Control unit.

6

CO2

1.4.4

L2

b

Design , Simulate and implement a 4-bit Universal Shift Register

for following operation

Sl.no

Selection Bits

Operation

1.

00

Circular Shift Right

2.

01

Parallel Load

3.

10

Circular Shift Left

4.

11

Hold

6

CO1

1.4.4

L3

c

There is a queue for exchange of old 500 rupees currency notes

after demonetization, in the post office. But a single customer

can exchange only upto Rs. 4000/- per day. What components

are necessary to design a system which alerts the user on

reaching the maximum count? Also design the system to

automate the counting process.

8

CO1

2.1.2

L3

Unit-II

4a

Explain the operational model of SIMD computers.

6

CO4

1.4.4

L2

b

A 40 MHz processor was used to execute a benchmark

program with the following instructions and clock cycle counts:

6

CO4

1.4.4

L3

Instruction

type

Instruction

count

Clock

cycle

count

Integer

arithmetic

45000

1

Data transfer

32000

2

Floating point

15000

2

Control

transfer

8000

2

Determine the effective CPI, MIPS rate and execution time for

this program.

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE11

c

Consider a main memory built with SDRAM chips. Data are

transferred in burst lengths of 8. Assume that 32 bits of data are

transferred in parallel. If a 400-MHz clock is used, how much time

does it take to transfer:

(a) 32 bytes of data

(b) 64 bytes of data

What is the latency in each case?

8

CO3

1.4.4

L3

5a

Explain the pipelining process in VLIW processors.

6

CO4

1.4.4

L2

b

The execution times (in seconds) of four programs on three

computers are given below:

Program

Execution Time (in seconds)

Computer A

Computer B

Computer C

Program 1

1

10

20

Program 2

1000

100

20

Program 3

500

1000

50

Program 4

100

800

100

Assume that 100,000,000 instructions were executed in each

of the four programs. Calculate the MIPS rating of each

program on each of the three machines. Based on these

ratings, can you draw a clear conclusion regarding the relative

performance of the three computers? Rank them statistically.

6

CO4

1.4.4

L3

c

With neat figure show how a very small memory chip consisting

of 16 words of 8 bits each is organized (16 X 8 organization).

What is Double-Data-Rate SDRAM?

8

CO3

1.4.4

L3

6a

With a neat diagram of computer architecture explain the

components involved in modern computer architecture.

6

CO4

1.4.4

L2

b

How does instruction set, compiler technology, CPU

implementation and control and cache and memory hierarchy

affect the CPU performance and justify the effects in terms of

program length, clock rate and effective CPI

6

CO4

1.4.4

L3

c

Design a 8M x 32 size memory chip using memory chips of

i. 512K x 16

ii. 256K x 8

Draw the diagrams showing appropriate connections for each

of the above cases.

8

CO3

1.4.4

L3

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE12

Unit III

7a

With a neat diagram explain 5-stage pipeline organization.

Consider the following instructions at the given addresses in

the memory:

1000 ADD R4, R3, R2

1004 OR R7, R6, R5

1008 SUBTRACT R8, R7, R4

Initially, registers R2 and R3 contain 4 and 8, respectively.

Registers R5 and R6 contain 128 and 2 respectively. Assume

that pipeline provides forwarding paths to the ALU from registers

RY and RZ. The first instruction is fetched in clock cycle 1, and

the remaining instructions are fetched in successive cycles.

Draw a pipelined execution of these instructions assuming that

processor is using operand forwarding.

Describe the contents of registers, RY, and RZ in the pipeline

during cycles 4 to 7.

10

CO5

1.4.4

L3

b

Explain with an example the different types of hazards. The

following instructions are executed in pipelined architecture.

SUBTRACT R4,R2,R3

BRANCH NEXT

OR R1, R2,#5

MUL R3,R4,R2

NEXT: LOAD R5,[R0]

ADD R6,R5,R2

Identify hazards and suggest hardware or software approach

to minimize the hazards.

10

CO5

1.4.4

L3

8a

Assume that 25% of dynamic count of instructions executed for

a program is branch instructions. There are pipeline stalls due

to data dependencies; static branch prediction is used with

non-taken assumption.

i. Determine execution time for two cases: when 30% of

branches are taken, and when 80% of branches are

taken.

ii. Determine the speedup for one case relative to other.

Express the speedup as percentage relative to 1.

10

CO5

1.4.4

L3

b

Explain the role of Dispatch unit to resolve Deadlock in scalar

processor.

10

CO5

1.4.4

L2

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE13

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 – Analysing, 5 –

Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

Competency addressed in the Course and corresponding Performance

Indicators

Competency

Performance Indicators

1.4: Demonstrate competence in computer

science engineering knowledge

1.4.4 Apply machine dependent/independent

features to build system modules.

2.1: Demonstrate an ability to identify and

characterize an engineering problem.

2.1.2: Identify processes, modules, variables, and

parameters of computer based system to solve

the problems.

Eg: 1.2.3: Represents Program Outcome

„1‟,

Competency

„2‟

and Performance Indicators

„3‟.

38

22

24

36

40

0

10

20

30

40

50

CO 1 CO 2 CO 3 CO 4 CO 5

Course Outcome wise

Marks Distribution

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE14

Course Name: Machine Learning

Course Outcomes (CO):

1. Interpret and apply machine learning concepts.

2. Develop a machine learning model to extract knowledge from given data.

3. Apply a suitable supervised/un-supervised learning algorithm to solve a given problem.

4. Develop an autonomous system using reinforcement learning.

5. Evaluate various machine learning algorithms and build a solution for real-world

applications.

Model Question Paper

Total Duration (H:M): 3:00

Course: Machine Learning

Maximum Marks: 100

Q.No

Questions

Marks

CO

BL

PI

1a

A dealer has a warehouse that stores a variety of fruits and vegetables.

When fruit is brought to the warehouse, various types of fruit may be

mixed together. The dealer wants a model that will sort the fruit according

to type. Justify with reasons how machine learning model is efficient

compared to feature based classification technique.

10

CO1

L2

1.4.1

1b

Suppose you are only allowed to use binary logistic classifiers to solve a

multi-class classification problem. Given a training set with 2 classes, this

classifier can learn a model, which can then be used to classify a new test

point to one of the 2 classes in the training set. You are now given a 6

class problem along with its training set, and have to use more than one

binary logistic classifier to solve the problem, as mentioned before.

Propose the following scheme - you will first train a binary logistic

classifier for every pair of classes. Now, for a new test point, you will run

it through each of these models, and the class which wins the maximum

number of pairwise contests, is the predicted label for the test point. How

many binary logistic classifiers will you need to solve the problem using

your proposed scheme?

10

CO2

L3

2.1.3

2a

Describe the two error functions that are used for neural networks.

Suppose we are training a neural network for binary classification, justify

the type of error function which is suitable to solve the problem.

10

CO1

L3

1.4.1

2b

Why it is necessary to estimate the accuracy of hypothesis. Explain

procedure to estimate difference in error between two learning methods.

10

CO3

L3

1.4.1

3a

Explain the effect of following factors in achieving global minima with

gradient descent algorithm.

10

CO1

L3

2.1.3

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE15

Q.No

Questions

Marks

CO

BL

PI

• Epochs

• Learning rate

• Weights of hypothesis (Ɵ

0

and

Ɵ

1

)

3b

Calculate the cost value of linear regression for the following dataset.

X=[1,2,3,4,5 ]

Y=[3,6,7,11,15 ]

Slope of hypothesis (Ɵ

1

) = 7

Constant/ intercept (Ɵ

0

)=5

Epoch=3

Learning rate (α) = 0.5

10

CO2

L3

2.1.3

4a

Determine the Principal Components for the given 2-Dimensional dataset.

(1, 2), (2, 4), (3, 6).

10

CO3

L3

2.1.3

4b

Suppose that we want to build a neural network that classifies two

dimensional data (i.e., X = [x1, x2]) into two classes: diamonds and

crosses. We have a set of training data that is plotted as follows:

Draw a network that can solve this classification problem. Justify your

choice of the number of nodes and the architecture. Draw the decision

boundary that your network can find on the diagram.

10

CO1

L3

1.4.1

5a

Consider the following Neural Network with alpha = 0.5, eta=0.24,

desired output = 1 and sigmoid activation function.

i. Perform one forward pass and calculate the error.

ii. Calculate the updated weights for w5 and w6 using back-

propagation.

10

CO3

L3

2.1.3

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE16

Q.No

Questions

Marks

CO

BL

PI

5b

Consider the following graphical model, which defines a joint probability

distribution over five Boolean variables. Apply Expectation

Maximization to train this Bayesian network, given training data in which

the variables F, S, H and N are fully observed, and where the variable A

is sometimes unobserved.

a. What are the conditional probability distributions associated with

each of the five random variables in this network?

b. What variables are in the Markov blanket for variable A?

c. Given that all variables in the Markov blanket of A are observed,

it should be possible to compute the distribution over A based on

only these variables. Simplify your expression from part (2) so that

it uses only the variables in the Markov blanket of A.

10

CO1

L3

1.4.1

6a

Apply SVM algorithm for the data-points and find dimension of hyper

plane to classify the data-points for the figure. (assume bias =1)

10

CO2

L3

2.1.3

6b

What is linearly in separable problem? Design a two layer network of

perceptron to implement XOR and AND gates.

10

CO2

L2

1.4.1

7a

Develop a Q learning task for recommendation system of an online

shopping website. What will be the environment of the system? Write the

cost function and value function for the system.

10

CO4

L3

2.1.3

7b

Explain how an agent can take action to move from one state to other state

with the help of rewards.

10

CO4

L3

1.4.1

8a

Explain reinforcement learning in detail along with the various elements

involved in forming the concept. Also define what is meant by partially

observed state.

10

CO4

L3

2.1.3

8b

Explain how reinforcement learning problem differs from other function

approximation.

10

CO4

L2

1.4.1

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE17

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 – Analysing, 5 –

Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

19%

81%

Bloom's Level wise Marks

Distribution

L2

L3

50

40

30

40

0

10

20

30

40

50

60

CO1 CO2 CO3 CO4

Course Outcome wise Marks

Distribution

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE18

Course Name: Operating System

Course Outcomes (COs):

At the end of the course the student should be able to:

1. Explain the core structure and functionality of operating system.

2. Evaluate and analyze various algorithms in process management.

3. Describe different deadlock prevention, avoidance and memory management algorithms.

4. Analyze protection and security aspects of mobile and network operating systems.

5. Demonstrate scheduling and memory management algorithms.

Model Question Paper for End Semester Examination

Course Code:

Course Title: Operating System

Duration: 3 hrs

Max. Marks: 100

Note: Answer five questions; any two full questions from each unit-I and unit-II and one full

question from unit-III

Unit-I

Q.No

Questions

Marks

CO

PI

Code

B

L

1 a

Classify and justify the following applications as Batch oriented or

Interactive.

Generating monthly bank statement, Word processing,

Generating personal tax returns.

06

CO1

1.4.1

L2

b

Discus implementation of mutual exclusion with semaphores.

Explain the role of wait( ) and signal( ) functions in this regard.

04

CO1

1.4.1

L2

c

Consider the following processes with their arrival time and

burst time as given below:

Process

Arrival Time

Burst Time

P1

0

12

P2

2

4

P3

3

6

P4

8

5

Identify appropriate data structure to implement following

scheduling algorithms for the above scenario. Which one among

them gives optimized scheduling with respect to waiting time?

a. FCFS

b. Shortest remaining time first ( SJF preemptive)

c. Round Robin (time quantum = 4 units)

10

CO2

1.4.1

L3

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE19

2 a

Consider the concurrently running processes A and B as given

below. (Shared data: semaphore s1=0, s2=0;)

Process A:

do {

Instruction a;

Signal (s1);

instruction b;

Wait (s2);

Instruction e;

} while (true);

Process B:

do {

Wait (s1);

Instruction d;

Instruction c;

Signal (s2);

} while (true)

Illustrate the order in which these instructions (A, B, C and D) will

get executed?

10

CO2

1.4.1

L3

b

Differentiate between one-to-one and many-to-many model used

for multithreading implementation.

10

CO1

1.4.1

L2

3 a

Assume two operations i) A(counter++) ii) B(counter--)

Both are running following code:

reg1= counter;

reg1= Reg1+1;

Counter = reg1;

Check for occurrence of Race condition. Propose different

approaches to solve race condition if it exists.

10

CO1

1.4.1

L3

3.b

Every Saturday ram will get up at morning 6 o clock. His wife

Swapna wants him to help her out with doing the house since

guests were expected to arrive that evening. This would take Ram

45 minutes. His daughter Priya wants him to help her out in

solving a math problem for 15 min, before she could face a test

that afternoon in the tuition classes. Ram’s son Arun, wants to be

dropped at his friend’s place as he is going to movie at 4pm. This

would take an hour of travel. Ram’s boss now calls him and asks

him to call up a client and have a telecon on a particular business

deal which would take him 20 minutes. In the evening 4 pm his

colleague asks him a help to send one email to client so that in the

night client will check and reply. It will take approximately 30 min.

As age factor plays imp role Ram will be taking 5 min rest after

each work.

10

CO2

1.4.1

L3

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE20

Implement above situation using FCFS, SJF and RR scheduling

algorithms and identify the best one among them (with respect to

Turn-around time). Priority will be ranging from professional to

personal life.

Unit-II

4a

Suppose that a disk drive has 5000 cylinders, numbered 0 to

4999. The drive is currently serving a request at cylinder 143, and

the previous request was at cylinder 125. The queue of pending

requests, in FIFO order, is: 86, 1470, 913, 1774, 948, 1509, 1022,

1750, 130 Starting from the current head position, what is the

total distance (in cylinders) that the disk arm moves to satisfy all

the pending requests for each of the following disk scheduling

algorithms?

i)FCFS ii) SSTF iii) SCAN iv) LOOK

10

CO3

2.1.3

L3

b

Determine the total amount of internal fragmentation using i)

First fit ii) Best fit iii) Worst fit techniques for the memory

requests given below:

10

CO3

1.4.1

L2

5a

Consider the following snapshot of a system:

Answer the following questions using the Banker’s algorithm:

a. Is the system in a safe state?

b. If a request from process P4 arrives for (0, 3, 2, 0), can the request

be granted immediately?

10

CO3

2.1.3

L3

b

Determine the total number of page faults and page fault rate for the

reference string given below using following page replacement

algorithms. i) FIFO ii) Optimal iii) LRU (Assume Number of frames =

4)

Reference string:

3, 2, 5, 0, 1, 3, 5, 0, 7, 8, 2, 1, 2, 3, 4, 5, 8, 4, 7, 8

10

CO3

1.4.1

L3

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE21

6a

Suppose at time T0, we have the following resource allocation

state:

Using deadlock detection algorithm test whether the system is in a

deadlock state.

10

CO3

1.4.1

L3

b

With neat diagram describe the Paging hardware with translation look-

aside buffer (TLB). Also calculate the effective memory access time for

the following specification.

Hit ratio = 60%.Memory access time = 200 nano seconds

TLB search time = 50 nano seconds

10

CO3

2.1.3

L3

Unit III

7a

Discuss the strengths and weaknesses of implementing an

access matrix using access lists that are associated with objects.

10

CO4

1.4.1

L2

b

Explain why a capability-based system such as Hydra provides

greater flexibility than the ring-protection scheme in enforcing

protection policies.

10

CO4

1.4.1

L3

8a

Explain overall architecture of Android Operating system. What

are the benefits of using Android for Mobile application

development

10

CO4

1.4.1

L2

b

Discuss design issues of network operating systems. Comment

on use of dedicated routers/gateways against general purpose

computers for networking.

10

CO4

1.4.1

L3

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE22

*CO5 is addresses through Course Activity.

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 – Analysing, 5 – Evaluating,

6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

Competency addressed in the Course and corresponding Performance

Indicators

Competency

Performance Indicators

1.4: Demonstrate competence in computer

science engineering knowledge.

1.4.1. Apply knowledge of suitable data structures

and / or programming paradigm to solve

problems.

2.1 :Demonstrate an ability to identify and

characterize an engineering problem

2.1.3. Identify the mathematical, engineering and

other relevant knowledge that applies to a given

problem.

L2

31%

L3

69%

Marks Distribution as

per Bloom's Level

30 30

60

40

0

20

40

60

80

CO1 CO2 CO3 CO4

Marks

CO

Marks Distribution as per Course

Outcome

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE23

Model Question Paper

Total Duration (H:M): 3:00

Course : Data Mining and Analysis

Maximum Marks :100

Q.No.

Questions

Ma

rks

CO

BL

PI

1a)

Answer the following questions with justification.

(i) Is noise ever interesting or desirable?

(ii) Can noise objects be outliers?

(iii) Are noise objects always outliers?

(iv) Are outliers always noise objects?

(v) Can noise make a typical value into an unusual one, or vice versa?

10

CO1

L3

1.1.3

1b)

Consider the following database of travel sequences for one working week of a

traveler:

Day

Sequence

Mon

A, U, H, U, A

Tue

A, U, H, U, B

Wed

B, A

Thu

A, U, H, U, A

Fri

A, U, B

(i) Use the Apriori algorithm to compute all frequent itemsets, and their

support, with minimum support 3. Clearly indicate the steps of the algorithm,

and the pruning that is performed.

(ii) Which of the frequent sequences are maximal?

(iii) Which of the frequent sequences are closed?

10

CO2

L3

2.1.4

2a)

(i) For the Traveler dataset given in Figure 3.a, answer the following questions:

[A] Which kind of plots are suitable for each of the 'gender', 'signup_method',

'first_device_type', 'first_browser' and 'timestamp_first_active' attributes.

[B] Which kind of plots are suitable for numerical data, give example.

[C] Classify each of the following attributes {'id', 'date_account_created',

'timestamp_first_active', 'gender', 'age', 'country_destination'} as qualitative

(nominal or ordinal or binary) or quantitative (discrete or continuous). Some

cases may have more than one interpretation, briefly indicate your reasoning if

you think there may be some ambiguity.

(ii) List and briefly describe two other techniques for numerosity reduction.

6

+

4

CO1

L3

1.4.1

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE24

2b)

(i) Draw a contingency table for each of the rules using the transactions

shown in Table 2.b.

Rules: [A] {b} → {c}; [B] {a} → {d}; [C] {b} → {d};

[D] {e} → {c}; [E] {c} → {a};

Table 2.b: Market basket transactions

Transaction ID

Item Brought

0001

{a, b, d, e}

0002

{b, c, d}

0003

{a, b, d, e}

0004

{a, c, d, e}

0005

{b, c, d, e}

0006

{b, d, e}

0007

{c, d}

0008

{a, b, c}

0009

{b, d, e}

0010

{b, d}

(ii) Use the contingency tables obtained in part (i) to compute and rank the

rules in decreasing order according to the following measures:

[A] Support; [B] Confidence; [C] Interest (X → Y) = P( X, Y) /

(P(X)*P(Y))

5

+

5

CO2

L3

2.1.4

3a)

Fig. 3. a.: Sample Traveler dataset

(i) For the Traveler dataset given in Figure 3. a, write the appropriate one or

two line python code for the following questions:

[A] Code: To find what is the percentage of data missing in each of the

attributes?

[B] Inference: What kind of analysis do you infer from distribution plot shown

below.

5

+

5

CO1

L3

1.4.1

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE25

[C] Code: To find are there any outliers in the age attribute and specify how do

you remove noise and outliers from the age attribute.

(ii) Write your Inference from these codes (users is a dataFrame depicted

in Fig. 3.a).

[D] users.gender.replace('-unknown-', np.nan,

inplace=True)

users.gender.value_counts(dropna =

False).plot(kind='bar',

color='red', rot=45)

[E] users['date_first_active'] = pd.to_datetime(

(users.timestamp_first_active),format='%Y%m%d')

[F] gender0 = sum(users['gender'] == 'FEMALE')

gender1 = sum(users['gender'] == 'MALE')

gender0_0 = users.loc[users['gender'] ==

'FEMALE',

country_destination'].value_counts() / gender0 *

100

gender1_1 = users.loc[users['gender'] == 'MALE',

'country_destination'].value_counts() / gender1

* 100

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE26

3b)

True or False/ Yes or No/ Short answers/Inference from analysis.

(i) [True/False] In comparison with the performance of a base classifier on a

particular data set, bagging will generally not increase the error whereas as

boosting may lead to an increase in the error.

(ii) [True/False] The use of weak classifiers prevents overfitting when we

perform bagging.

(iii) [True/False] If one feature (compared to all others) is a very strong

predictor of the class label of the output variable, then all of the trees in a

random forest will have this feature as the root node.

(iv) [True/False] Is AdaBoost sensitive to outliers?

(v) [Yes/No] On a particular data set, we use the ensemble method approach

to building a predictor and achieve state of the art performance. Is it possible

for some of the individual models in this ensemble to have poor performance

as measured on the training data?

(vi) [Yes/No] Consider an alternative way of learning a Random Forest where

instead of randomly sampling the attributes at each node, we sample a subset

of attributes for each tree and build the tree on these features. Would you prefer

this method over the original or not, and why?

(vii) [Yes/No] Can the boosting technique be applied on regression problems?

Can bagging be applied on regression problems?

(viii) While working on a recognition problem, we implemented four different

classifiers. You are now trying to compare their performance. Their

misclassification rates are as follows:

Classifier

P

Classifier

Q

Classifier

R

Classifier

S

Error rate on training

data

25%

5%

10%

20%

Error rate on testing data

30%

20%

15%

25%

Write Classifier P, Q, R, or S.

[A] Which classifier has the best generalization performance, i.e., most likely

would perform the best when applied to unseen data?

[B] Which classifier is underfitting the most?

[C] Which classifier is overfitting the most?

10

CO3

L3

2.1.4

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE27

4a)

Given the contingency table, compute the

following pairwise measures for clustering

evaluation:

(i) Jaccard coefficient

(ii) Rand statistic

(iii) Fowlkes–Mallows measure

Contingency table

C\T

T1

T2

T3

C1

0

47

14

C2

50

0

C3

0

3

36

10

CO3

L2

1.1.3

4b)

Solve the following HAC by

considering the proximity

matrix given, and consider

inter-cluster similarity between

clusters using:

(i) Nearest neighbor linkage

(ii) Farthest neighbor linkage

And draw the corresponding

dendograms.

Proximity matrix

P1

P2

P3

P4

P5

P1

1.00

0.10

0.41

0.55

0.35

P2

0.10

1.00

0.64

0.47

0.98

P3

0.41

0.64

1.00

0.44

0.85

P4

0.55

0.47

0.44

1.00

0.76

P5

0.35

0.98

0.85

0.76

1.00

10

CO2

L3

2.1.4

5a)

Consider the following data set:

V

W

X

Y

0

1

0

1

0

1

0

1

0

Your task is to build a decision tree for classifying variable Y. (You can think

of the data set as replicated many times, i.e. overfitting is not an issue here).

(i) Compute the information gains IG(Y | V ), IG(Y | W) and IG(Y | X).

Which attribute would Decision Tree classifier select first?

(ii) Write down the entire decision tree constructed by Decision Tree classifier,

without pruning.

(iii) One idea for pruning would be to start at the root, and prune splits for

which the information gain (or some other criterion) is less than some small ϵ.

10

CO2

L3

2.1.4

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE28

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 – Analysing, 5 –

Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

This is called top-down pruning. What is the decision tree returned for ϵ =

0.0001? What is the training set error for this tree?

(iv) Another option would be to start at the leaves, and prune subtrees for

which the information gain (or some other criterion) of a split is less than some

small ϵ. In this method, no ancestors of children with high information gain will

get pruned. This is called bottom-up pruning. What is the tree returned for ϵ =

0.0001? What is the training set error for this tree?

5b)

i) You are given a training set of five real-valued points and their 2-class

classifications

(+or -): (1.5, +), (3.2, +), (5.4, -), (6.2, -), (8.5, -).

[A] What is the predicted class for a test example at point 4.0 using 3-NN?

[B] What is the decision boundary associated with this Training set using 3-

NN? (Hint: The boundary is defined by a single real value.)

[C] True or False (Justify): For any 2-class, linearly-separable Training set (e.g.,

the one given above), a 3-NN classifier will always have 100% accuracy on the

Training set.

(ii) Say we have a Training set consisting of 30 positive examples and 10

negative examples where each example is a point in a two-dimensional, real-

valued feature space.

[A] What will the classification accuracy be on the Training set with 1-NN?

[B] What will the classification accuracy be on the Training set with 40-NN?

10

CO3

L3

2.1.4

30

40

30

0

20

40

60

80

100

CO 1 CO 2 CO 3

Course Outcome wise

Marks Distribution

10

90

Bloom's Level wise Marks

Distribution

Level 2 Level 3

All India Council for Technical Education

Model Question Paper

Computer Science and Engineering

CSE29

Electrical & Electronics Engineering

Model Question Paper

For Undergraduate Program

The model question papers are suggestive blueprints. The primary aim of these

question papers is to bring clarity about the process of connecting questions to

performance indicators and hence to course outcomes. Further, these question

papers demonstrate how bloom’s taxonomy can be used to understand the quality

of question papers and their effectiveness in assessing higher order abilities. The

structure of question papers, number of questions, choices given, time given for

examination etc., can vary based on the practices of the University or college.

All India Council for Technical Education

Table of Contents

Name of Course Page No.

1. Circuit Analysis EEE1- EEE6

2.

Linear Control Systems

EEE

7

-

EEE

10

3. Analog Electronics Circuits EEE11- EEE16

4.

Digital Signal Processing

EEE

1

7

-

EEE

20

5. Power Electronics EEE21- EEE23

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

Course Name: Circuit Analysis

Course Outcomes (COs):

At the end of the course the student should be able to:

1.

Analyze linear circuits using Nodal & Mesh Analysis

2.

Apply Network theorems to both AC & DC circuits

3.

Employ two port network models to represent active and passive networks

4.

Analyze and determine the transient response, time domain and frequency domain

behavior of First order circuits

5.

Analyze and predict the time domain and frequency domain behavior of Higher order

circuits

6.

Analyze and draw phasor diagrams for single phase circuits

7.

Analyze and draw phasor diagrams for three phase circuits

8.

Utilize simulation tool (such as PSpice, Microcap) to accurately analyze circuits

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE1

Model Question Paper

Course: Circuit Analysis

Q.No.

Questions

Marks

CO

BL

PI

Code

1a

Use Y-Δ and Δ-Y transformation to find Rth between points xy.

(fig.1.(a)).

6

CO1

L3

1.4.1

1b

Apply Norton’s theorem to find ‘I0’ in the circuit given

(fig.1.(b)).

6

CO2

L3

1.4.1

1c

For the circuit (fig.1.(c)) given find,

i. Thevenin’s equivalent circuit at terminals A & B.

ii. How much power would be delivered to a resistor connected

to AB if RAB=5Ω

8

CO2

L3

1.4.1

2a

State and prove Maximum power transfer theorem for an AC

circuit having impedance source & pure resistive load.

6

CO2

L2

1.4.1

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE2

Q.No.

Questions

Marks

CO

BL

PI

Code

2b

Determine the voltage ‘Vx’ across the 2Ω resistor using source

transformation method (fig.2.(b)).

6

CO1

L3

1.4.1

2c

Solve for Vx & Vy using the supernode concept for the circuit

shown in Fig. 2(c).

8

CO1

L3

1.4.1

3a

Demonstrate Reciprocity theorem for the voltage across R, for

the network shown in fig.3.(a).

6

CO2

L3

1.4.1

3b

A very long string of 400 multicolored outdoor lights is

installed on a house. After applying power, the home owner

notices two bulbs are burnt out. i) Are the lights connected in

series or parallel? ii) After replacing the burnt bulbs the owner

notices that the lights closest to the supply are approximately

10% brighter than the lights at the far end of the string, provide

6

CO1

L3

2.1.3

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE3

Q.No.

Questions

Marks

CO

BL

PI

Code

a suitable explanation keeping in mind that nothing in the string

is zero ohms. iii) Assuming 115V ac supply, individual bulb

rating of 1Watt, determine the power supplied by the supply.

3c

Find hybrid & ABCD parameters of the network shown in

fig.3.(c)

8

CO3

L3

1.4.1

4a

In the circuit of Fig 4(a), the switch K1 & K2 are closed at t =

0 secs and switch K2 is opened at t = 5 ms. Find the expression

for the resulting value of the current.

6

CO4

L3

1.4.1

4b

A unit pulse of width ‘a’ is applied to a RL series circuit.

Determine the expression for the current. Given R = 1Ω and

L = 1H.

6

CO4

L2

1.4.1

4c

For the circuit shown in fig.4.(c), derive the transfer function,

find order of system, pole-zero location and frequency response.

8

CO5

L3

1.4.1

5a

Refer the network shown in fig.5.(a), the switch ‘k’ is opens at

t=0, at t=0+ solve for the values of ‘v’ & dv/dt, if I=2A, R=200Ω

and L=1H.

6

CO4

L3

1.4.1

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE4

Q.No.

Questions

Marks

CO

BL

PI

Code

5b

Explain Series resonance with characteristics and derive the

relation between resonant and half power frequencies.

6

CO5

L2

1.4.1

5c

An a.c series circuit consisting of a coil connected in series with

a capacitor and resister. The circuit draws a maximum current of

10A when connected to 200V, 50Hz supply. If the voltage across

the capacitor is 500V at resonance,find the parameters R, L & C

of the circuit and Quality factor.

8

CO4

L2

1.4.1

6a

Design a circuit to allow a room light to remain ‘ON’ for 5Sec

after the switch has been turned ‘OFF’. Assume 40W bulb and

115 Ohm AC supply.

6

CO4

L3

2.1.3

6b

Derive the expression for dynamic resistance and resonant

frequency in parallel resonant tank circuit.

6

CO5

L3

1.4.1

6c

The switch in Fig.6(c) was open for a long time but closed at t =

0. Determine expressions for i and v.

8

CO5

L3

1.4.1

7a

A parallel RLC circuit comprising of a capacitor B

C

=0.3S,

inductor B

L

=0.1S and a conductor of G=0.2S are connected to a

current source of 10 amperes. Determine the branch currents and

plot the complete phasor diagram.

10

CO6

L3

1.4.1

7b

Find the input impedance of the circuit in Fig.7(b). Assume that

the circuit operates at ω = 50 rad/s.

10

CO6

L3

1.4.1

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE5

Q.No.

Questions

Marks

CO

BL

PI

Code

8a

The impedance in each phase of a three phase 440v delta system

comprises 5 ohms resistance in parallel with a 5 ohms capacitive

reactance. Calculate the phase and line currents and the total

power consumed .Draw the phasor diagram.

10

CO7

L3

1.4.1

8b

A three phase four wire system with line voltage of 400 v, 50 Hz

supply has a star connected load of Z

R

= 10 L0

0

ohms,

Z

Y

=15L30

0

ohms, Z

B

=6-j5 ohms. Obtain the line currents and

the current in the neutral conductor. Calculate the total power

drawn. Draw the phasor diagram.

10

CO7

L3

1.4.1

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 –

Analysing, 5 – Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

26 26

8

32

28

20 20

0

5

10

15

20

25

30

35

CO 1 CO 2 CO 3 CO 4 CO 5 CO 6 CO 7

Course Outcome wise

Marks Distribution

Level 2

Level 3

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE6

Course Name: Linear Control Systems

Course Outcomes (CO):

At the end of the course the student is able to:

1. Develop the transfer function and block diagram/signal flow graph model of electrical/

electronic /electro-mechanical systems.

2. Analyze the control system performance using time-domain approach and validate

through simulations.

3. Analyze the absolute/related stability of a given control system by employing Routh-

Hurwitz criterion.

4. Design PI/PD/PID controllers for a given plant by Zeigler-Nichol's and Pole placement

techniques.

5. Apply known techniques to reshape the frequency response of a given control system

in the form of polar plot/Bode plot, determine response specifications and validate

through simulations.

6. Apply known techniques to obtain root locus of a given control system to determine the

response specifications as function of given control parameter and validate through

simulations.

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE7

Model Question Paper

Course : Linear Control Systems

Q.No.

Questions

Marks

CO

BL

PO

PI

Code

1a

For the electrical circuit of Fig., deduce the model equations and hence

represent by signal-flow graph with v1 (input), v2, v3, i1, i2 and i3 (output) as

variables.

10

CO1

L3

13

13.1.1

1b

In industrial manufacturing certain robot arm is required to control the position

of the end piece. Fig.1b shows the model of a closed loop position control

system where the controller gains kp and kd are to be determined so as to

satisfy the following specifications (i) Closed loop poles placed at (-3.6 ±β) (ii)

Peak-time=0.65 sec. From the above descriptions (i) Identify the design

specifications in terms of damping ratio (ζ ) and angular frequency

(ωn)(ii)Deduce relations for Kp and Kd in terms of ζ and ωn (iii) required gain

settings (iv) Peak overshoot and settling time for these settings.

10

CO2

L3

2

2.1.2

2a

Assuming under-damped unit step response of a second order control

system, deduce expressions for peak-time and rise time. For a negative

feedback control system, G(s)= (10s+72)/s(2s+6) and H(s)=1. Determine the

peak overshoot, settling time and static error constants Kp, Kv and Ka.

10

CO2

L3

13

13.1.1

2b

For the block-diagram shown in Fig., obtain the signal flow graph and

determine the T.F C(s)/R(s) by applying Mason’s gain formula.

10

CO1

L3

13

13.1.1

3a

First order field circuit model of a DC Generator is shown below where, Rf=50,

Rs=1 and Lf=2.0. (i) If K=0.2, obtain an expression for unit step output

response by selecting gain KA for zero steady-state error. (ii) If gain KA is

varied from 80 to 120 in steps of 10, determine the values of gain K that give

time constant ≤ 0.005 sec and plot in the parameter plane (KA, K) marking

different regions of time constants. Also compute the corresponding steady-

state error for unit step input and analyze the effect of KA variations on it.

10

CO1

L3

13

13.1.1

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE8

Q.No.

Questions

Marks

CO

BL

PO

PI

Code

3b

The depth control system of a submersible vehicle is shown in fig. below,

where K=0.5 (i) If K2=0.5 and gain K1 has limits 5 ≤ K1 ≤ 20, obtain the unit

step response with K1 selected for fasted response.(ii) If gain K1 is varied from

1.0 to 7.0 in steps of 1.0, determine the gain K2 values that give time constant

≤ 0.1 and plot in the parameter plane K1 - K2. Also compute the corresponding

equivalent gain (Ke) and steady-state errors and comment on the effect of K1

variations on the steady-state error.

10

CO2

L2

13

13.1.1

4a

All elements in a row of Routh array are zero. What this indicates? How to

overcome this situation? For a negative feedback control system, G(s)=(K-

2)/s(s

2

+s+1) and H(s)=1/(s+5). By applying RH criterion, determine the range

of gain K over which the closed loop system is absolutely stable. Also

investigate the stability and number of roots in RHS of s-plane when K=10 and

K=0.5.

10

CO3

L3

13

13.1.1

4b

For a simplified model of DC generator voltage control system,

Gp(s)=1/(1+s)(2+s) and H(s)=1 . Design PID controller assuming Ki=0.1 so as

to place two dominant closed loop poles at (-3±j4).

10

CO4

L3

3

3.2.2

5a

The open loop T.F of a control system is G(s)H(s)=10/s(s+1)(s+5) . Sketch the

approximate polar plot and analytically determine the gain margin.

10

CO5

L2

13

13.1.1

5b

Figure shows the model of the control system for one joint of a robot arm. The

controller is a PD given as. Now it is required to determine the combinational

values of Kp and Kd (both positive) for which the closed loop system is

absolutely stable. In this respect (i) By applying RH criterion, deduce an

expression for limiting value of Kd as a function of Kp (ii) If Kp is varied,

determine the corresponding limiting value of Kd and plot in the parameter

plane (Kp, Kd) marking stable and unstable regions.

10

CO3

L3

2

2.4.1

6a

The open loop T.F of a control system is G(s)H(s)=10/s(1+2s). Obtain the

approximate polar plot and analytically determine the phase margin

10

CO5

L3

13

13.1.1

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE9

Q.No.

Questions

Marks

CO

BL

PO

PI

Code

6b

For a simplified model of a synchronous generator excitation control system,

Gp(s)=0.8/(1+3s)(1+30s) and H(s)=1/(1+10s). Design PI and PID controllers

using Zeigler-Nichol’s tuning approach. Determine ultimate gain and time

period using RH criterion

10

CO4

L3

3

3.2.2

7a

Briefly explain the procedure to compute gain and phase margins from Bode

plot. For the Bode magnitude plot shown, determine Transfer function and

phase margin.

10

CO5

L3

13

13.1.1

7b

Sketch the asymptotic Bode magnitude plot and phase plot for the open loop

transfer function

G(s)H(s)=(1+2s)(1+0.1s)/s(s+0.5s)

10

CO5

L3

13

13.1.1

8a

Briefly explain the angle criterion of root locus technique. With an example,

list the rules to construct the root locus diagram.

10

CO6

L2

13

13.1.1

8b

Show that the complex part of the root locus of G(s)H(s)=K(s+2)/(s

2

+2s+3) is

a circle

10

CO6

L3

13

13.1.1

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 –

Analysing, 5 – Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

30

130

Bloom's Level wise Marks

Distribution

L2

L3

30 30

20 20

40

20

0

10

20

30

40

50

CO1 CO2 CO3 CO4 CO5 CO6

Marks

CO's

Course Outcome wise Marks

Distribution

Marks

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE10

Course: Analog Electronics Circuits

Course Outcomes (COs):

1. Infer the terminal behavior of the devices such as Junction Diode, BJT & MOSFET,

also identify the region of operation with its equivalent circuit model.

2. Identify the need for small signal operation and derive the small signal performance

parameters of the device for amplification by relating design variable to the device

parameters.

3. Outline and parse the performance parameters of various feedback topologies & large

signal amplifiers.

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE11

Model question paper for Analog Electronics Circuits

Q.No.

Questions

Marks

CO

BL

PO

PI

1a

The input waveform available is a square waveform of

amplitude 5V and frequency 1kHz. Using appropriate

diode circuit, modify the amplitude of the waveform

suitably retaining same value of frequency. Use this

waveform to trigger a digital circuit. Justify your

answer.

7

CO1

L3

2

2.1.2

1b

Design a voltage divider bias BJT circuit to have 









= 5V and 



= 5mA, when the supply voltage is 15V.

Assume transistor 



= 100.

7

CO1

L3

1

1.4.1

1c

The circuit given below consists of a non-linear diode.

Determine V

B

(voltage across 5kΩ) using small signal

model of diode.

6

CO1

L3

1

1.4.1

2a

Design an appropriate diode circuit for the transfer

function given below. Analyze the circuit and draw

input output waveforms.

7

CO1

L3

3

3.4.1

2b

The input voltage 









to the two level clipper shown

in Fig.2a varies linearly from 0 to 150 V. Sketch the

transfer characteristics assuming diodes are ideal

.

7

CO2

L3

1

1.4.1

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE12

2c

Determine voltages at all nodes and the currents through

all branches. Let 



 and



















.

Neglect channel length modulation.

6

CO1

L3

1

1.4.1

3a

Calculate the base, collector and emitter currents and

V

CE

for a common emitter circuit given below. Also

determine the transistor power dissipation.

7

CO1

L2

1

1.4.1

3b

Draw input and output characteristics of nMOS for

increasing value of length and oxide thickness.

6

CO1

L3

1

1.4.1

3c

Determine Zi, Zo, Av and Q(V

CEQ

, I

CQ

) of the circuit

given below. Assume 



 



 and







7

CO2

L2

1

1.4.1

4a

For the circuit given below, find the labelled node

voltages. The nMOS transistors have 



 and





















. Neglect channel length

modulation.

6

CO1

L3

1

1.4.1

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE13

4b

For a CD amplifier, find the expression for

















highlighting the effect of 



.

6

CO2

L3

1

1.4.1

4c

Design the circuit shown below to establish a dc drain

current of 0.5mA. The MOSFET is specified to have





 and 















=1mA/V

2

.For simplicity neglect

the channel length modulation. 



 calculate

the percentage change in the value of Id obtained when

the MOSFET is replaced with having same 















 but







8

CO2

L3

3

3.4.1

5a

The NMOS and PMOS transistor in the circuit shown

below are matched with

































 





and 







. Assuming for

both the devices. Find the drain currents and 







as

well as voltage 



for i)



 ii) 



iii)







10

CO2

L3

1

1.4.1

5b

A student is assigned a task to design an amplifier

circuit to amplify an audio signal. The circuit chosen by

10

CO2

L3

2

2.1.2

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE14

the student is given below. Identify the type of biasing

circuit used. Determine its small signal voltage gain,

input resistance and the largest allowable input signal.

The transistor has



,















 





,





. State the assumptions.

6a

Using two transistors Q1 and Q2 having equal lengths

but different widths related by W

2

/W

1

= 5. Design the

circuit of basic current mirror to obtain I=0.5mA.

Let



, K

n

(W/L)

1

=0.8mA/V

2

, 



 and

λ=0. Find the required value of R? What is voltage at

the gates of Q1 and Q2? What is the lowest voltage

allowed at the drain of Q2 while Q2 remains in the

saturation region?

7

CO2

L2

1

1.4.1

6b

Draw the small signal model for common gate

amplifier and derive the expression for input, output

impedance and voltage gain.

7

CO2

L2

1

1.4.1

6c

An NMOS transistor has 











,











 and 



 (a) find 



and 



when

V

GS

=1.5v (b) find g

m

and r

0

when I

D

=0.5mA

6

CO2

L2

1

1.4.1

7a

An amplifier with negative feedback has a voltage gain

of 120. It is found that without feedback, an input signal

of 60mV is required to produce a particular output. Find

the Av and β of the amplifier.

6

CO3

L2

1

1.4.1

7b

Discuss the general characteristics of a negative

feedback amplifier.

6

CO3

L2

1

1.4.1

7c

Derive an expression for input and output resistance of

a voltage shunt feedback amplifier, and explain.

8

CO3

L2

1

1.4.1

8a

Explain the classification of power amplifiers based on

the location of the operating point with neat diagrams.

6

CO3

L2

1

1.4.1

8b

Explain the operation of transformer coupled amplifier

with neat circuit diagram and derive the expressions for

maximum efficiency

6

CO3

L2

1

1.4.1

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE15

41%

59%

Bloom’s level wise marks distribution

Level 2 Level 3

52

68

40

0

10

20

30

40

50

60

70

80

CO1 CO2 CO3

Marks

Course Objectives

Course Outcome Wise Marks

Distribution

8c

A class B power amplifier is delivering an output

voltage of 10 volts peak to an 8 Ω load, if the DC power

supply is 30 volts; calculate i) DC power input. ii) AC

power delivered to the load iii) Conversion efficiency

iv) Power dissipated in the collector of each transistor.

8

CO3

L3

1

1.4.1

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE16

Course: Digital Signal Processing

Course Learning Objectives:

1. Represent the given signal mathematically, and apply it for system analysis

2. Represent LTI systems using differential and difference equations and hence analyze

the same

3. Characterize the discrete time signal in frequency domain using Fourier series and

Fourier transform

4. Apply DFT techniques for applications like spectral analysis, linear filtering.

5. Apply FFT techniques for applications like, linear filtering and Correlation.

6. Design digital IIR and FIR filters for the given specification

7. Explore the basic concepts of Signals and Systems, and Digital Signal Processing using

computational tool.

Model question paper for Digital Signal Processing

Q.No.

Questions

Marks

CO

BL

PI Code

1a

Let 







be a continuous time signal, and let 

















and















 

 

.The signal 









represents a speeded up version of









similarly 









represents a slowed down version of 







.

Consider the following statements

i) If 







is periodic , then 









is periodic

ii) If 









is periodic , then 







is periodic

For each of these statements, determine whether it is true, and if so,

determine the relationship between the fundamental periods of the two

signals considered in the statement. If the statement is not true,

produce a counterexample to it.

8

CO1

L3

1.4.1

1b

Consider the capacitor circuit shown in fig below. Let input 

















and output 

















i) Find the input-output relationship

ii) Determine the system is a) memory less, b)Causal c)Linear

d) Stable e) Time-invariant.

6

CO2

L3

1.4.1

1c

Obtain the direct form-I, direct form-II for the following system which

is represented in difference equation form.













  



 



  



 







 



  



 



  



6

CO2

L2

1.4.1

2a

Classify the following signals according to whether they are (1) one

or multi-dimensional (2) continuous time or discrete time and (3)

analog or digital (amplitude). Justify

i) Closing prices of utility stocks on New York Stock Exchange

8

CO1

L3

1.4.1

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE17

Q.No.

Questions

Marks

CO

BL

PI Code

ii) A color movie

iii) Position of the steering wheel of a car in motion relative to

car’s reference frame.

2b

Consider the interconnection of LTI system shown in fig below,

i)Express overall impulse response in terms of 





























and 









with all intermediate steps

ii) Determine









when





















































  

























  



6

CO2

L3

1.4.1

2c

Sketch and label the following signals.

i)











 



 



 



 



  



 



 



ii)











 



 



  



 



 



 



 



6

CO1

L2

1.4.1

3a

An audio signal s(t) generated by a loud speaker is reflected at two

different walls with reflection coefficients 







. The signal 







recorded by a microphone close to the loud speaker, after sampling, is

















 







 





 







  





. Where 



and 



are the

delays of two echoes. Determine autocorrelation 









of the signal









.

8

CO2

L3

2.1.3

3b

Determine the total solution 







to the difference equation









 







  











when 







is a unit step sequence and









is initial condition.

6

CO2

L2

1.4.1

3c

Show that any signal can be decomposed into an even and an odd

component. Is the decomposition is unique? Illustrate your arguments

using the signal 









6

CO1

L2

1.4.1

4a

Given sequences 



































find 









such

that 





























using DFT and IDFT method.

10

CO4

L2

1.4.1

4b

For an instance digital audio has long input data sequence 















and 















which are

running at a rate of 5Mbytes /min. With this high data rate, it is

common for computers to have insufficient memory to simultaneously

hold the entire signal to be processed. Suggest a method to process the

data segment by segment so that computers with insufficient memory

can also handle the long data sequence which are running at high

speed.

10

CO4

L3

2.1.3

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE18

Q.No.

Questions

Marks

CO

BL

PI Code

5a

Determine Fourier series co-efficients of a periodic signal 















with period N=4 also plot its magnitude and phase

spectrum.

6

CO3

L2

1.4.1

5b

Compute circular convolution of the sequences 















and









 such that it is equivalent to linear convolution of

the of the same sequences.

10

CO3

L3

1.4.1

5c

Find the Fourier Transform of 



















. If you have used any

property while determining 







, state it.

4

CO3

L2

1.4.1

6a

Compute IDFT of sequence 











 

    





using Radix-2 decimation in frequency FFT algorithm. Keep

track of all intermediate results and show them on butterfly diagram.

10

CO5

L3

1.4.1

6b

The impulse response of an LTI system is given by 

























  





. To determine the impulse response 







of the inverse

system, an engineer computes the N-point DFT, 



, of 







and then defines 







as the inverse DFT of 





















 . Determine 







and the convolution







 







,

and comment on whether the system with impulse response 







is

the inverse of the system with impulse response 







.

10

CO4

L3

1.4.1

7a

Convert the analog filter whose transfer function is given by 





















to digital filter using impulse invariance method. Assume

T=1 sec

10

CO6

L2

1.4.1

7b

With the analysis of the Electrocardiogram (ECG)

signal it is possible to predict heart problems or monitor patient

recovery after a heart intervention.

But The quality of biomedical signal is degraded

mainly by many sources of noise so it is required to design a digital

filter with Chebyshev approximation for the specifications

















. to overcome degradation

by improving ECG signal quality for quality clinical diagnosis.

10

CO6

L3

2.1.3

8a

Design a filter with frequency response 











































using Hanning window for N=7

10

CO6

L3

3.4.1

8b

Design an ideal Hibert transformer with frequency response











 

 

using rectangular window for N=11

10

CO6

L3

3.4.1

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE19

34%

66%

Bloom’s level wise marks distribution

Level 2 Level 3

28

32

20

30

10

40

0

5

10

15

20

25

30

35

40

45

CO1 CO2 CO3 CO4 CO5 CO6

Marks

Course Objectives

Course Outcome Wise Marks

Distribution

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE20

Course Name: Power Electronics

Course Outcomes

1.

Apply basic volt-sec balance, amp-sec balance for inductors and capacitors present in a power

converter so as to estimate output voltage and current of power converters

2.

Design different dc-dc converters operating in continuous conduction mode for given

specification of output voltage, output current and ripple voltage/current

3.

Analyze square wave, PWM single phase and three phase voltage source inverters for output

voltage amplitude and frequency control

4.

Analyze single phase controlled rectifiers for R and RL load for both continuous and

discontinuous conduction

5.

Analyze single phase voltage controllers for R and RL load and explain static VAR control

6.

Design MOSFET and IGBT gate drive circuits, BJT drive circuits, transistor and thyristor

snubber circuits as well as cooling requirements for power semiconductor devices

Model Question Paper

Course: Power Electronics

Q.No

Question

Marks

CO

BL

PI

Code

1a

State and prove ampere-second balance and volt-second balance. Also,

establish the relationship between input voltage and output voltage for buck

and boost type DC-DC converters by applying ampere-second balance to the

capacitor.

10

2

L3

1.4.1

1b

A non-sinusoidal periodic voltage has a Fourier series of v(t) = 10 +20

cos(2π60t -250)+30 cos(4 π 60t +200) V. This voltage is connected to a load

that is a 5Ω resistor and a 15-mH inductor connected in series. Determine the

power absorbed by the load.

10

1

L2

1.4.1

2a

Show that rms value of a sinusoid is the peak value divided by  . Give two

examples to show that this is generally not the case for other periodic

waveforms.

10

1

L2

1.4.1

2b

A buck converter has an input voltage that varies between 50 and 60 V and a

load that varies between 75 and 125 W. The output voltage required by load is

20 V with allowable ripple of 1%. For a switching frequency of 100 kHz, Design

system components to provide for continuous current for every operating

possibility.

10

2

L3

3.1.6

3a

An electric resistance space heater rated at 1500 W for a voltage source of









 V has a thermostatically controlled switch. The heater

periodically switches on for 5 min and off for 7 min. Determine (i) the maximum

instantaneous power, (ii) the average power over the 12-min cycle, and (iii) the

electric energy converted to heat in each 12 min cycle. A non-sinusoidal

periodic voltage has a Fourier series of

10

1

L3

2.1.3

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE21

Q.No

Question

Marks

CO

BL

PI

Code

3b

With necessary equivalent circuit diagrams and relevant waveforms of a SEPIC

converter in CCM, derive expressions for voltage gain and current gain.

10

2

L2

1.4.1

4a

Explain how amplitude and harmonics are controlled in a single phase voltage

source inverter simultaneously using relevant waveforms. Also derive an

expression for the rms value of output voltage in terms of dc link voltage and

delay angle.

10

3

L2

1.4.1

4b

A certain situation requires that either 160 or 75 W be supplied to a 48 V battery

from a 120 V rms 60 Hz ac source. There is a two-position switch on a control

panel set at either 160 or 75. Design a single circuit to deliver both values of

power, and specify what the control switch will do. Specify the values of all the

components in your circuit. The internal resistance of the battery is 0.1 Ω.

10

4

L3

2.1.3

5a

Design an inverter that has a PWM output across an RL series load with

R=10Ω and L=20mH. The fundamental frequency of the output voltage must

be 120 V rms at 60Hz, and the total harmonic distortion of the load current

must be less than 8 percent. Specify the dc input voltage, the amplitude

modulation ratio ma, and the switching frequency (carrier frequency). State the

assumptions and approximations clearly involved in design process

10

3

L3

3.1.6

5b

Show that the controlled half-wave rectifier and full wave rectifier with a

resistive load have the power factor of

1 sin2

2 2 4

HW

pf





= − +

and

sin2

1

2

FW

pf





= − +

Also, explain the significance of power factor in rectifier circuits.

10

4

L2

1.4.1

6a

The full-bridge inverter has a switching sequence that produces a square wave

voltage across a series RL load. The switching frequency is 60 Hz, Vdc

=100 V, R=10 Ω, and L=25 mH. Determine (a) an expression for load current,

(b) the power absorbed by the load, and (c) the average current in the dc

source.

10

3

L2

1.4.1

6b

Design a circuit that will deliver 100 W to a 48 V dc source from a 120 V rms

60 Hz ac source. Give alternative circuits that could be used to satisfy the

design specifications, and give reasons for your selection.

10

4

L3

3.1.6

7a

Explain application of ac voltage controller to maintain a unity power factor for

varying load VAR requirements

08

5

L2

1.4.1

7b

Light-dimmer for ambient lighting consists of incandescent light bulb for use in

USA (with 120 V rms, 50Hz). Bulb is measured to consume 500 W of power

for particular lighting condition. Design suitable circuit to meet the

requirements. Assume the bulb to be purely resistive with resistance of 15

ohms.

12

5

L3

3.1.6

8a

With a neat circuit diagram and waveforms, explain low side driver circuits for

MOSFET and IGBT.

08

6

L2

1.4.1

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE22

Q.No

Question

Marks

CO

BL

PI

Code

8b

For a BJT in its high switching frequency application of 50kHz, spike of 1A at

the turn-on is observed. The current reduces to 0.2 A post switching transients

in the on state. Design a circuit to cater to driving requirements for BJT for high

switching application.

(Design hints: Assume i) VBE=0.9V, ii) Control pulse input of 0-15V with duty

ratio of 50%)

12

6

L3

3.1.6

76

84

Blooms Level Wise

Marks Distribution

Level 2 Level 3

30 30 30 30

20 20

0

10

20

30

40

CO1 CO2 CO3 CO4 CO5 CO6

Course Outcome wise

Marks Distribution

All India Council for Technical Education

Model Question Paper

Electrical and Electronics Engineering

EEE23

Electronics & Communications

Engineering

Model Question Papers

For Undergraduate Program

The model question papers are suggestive blueprints. The primary aim of these

question papers is to bring clarity about the process of connecting questions to

performance indicators and hence to course outcomes. Further, these question

papers demonstrate how bloom’s taxonomy can be used to understand the quality

of question papers and their effectiveness in assessing higher order abilities. The

structure of question papers, number of questions, choices given, time given for

examination etc., can vary based on the practices of the University or college.

All India Council for Technical Education

Table of Contents

Name of Course Page No.

1. Analog Electronics Circuits ECE1-ECE6

2.

Automotive Electronics

ECE

7

-

ECE

10

3. CMOS VLSI Circuits ECE11- ECE14

4.

Digital Circuits

ECE

1

5

-

ECE

18

5. Linear Integrated Circuits ECE19- ECE23

6.

Operating System and Embedded Systems

ECE

24

-

ECE

27

7. Signals and Systems ECE28- ECE31

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

Course Name: Analog Electronics Circuits

Semester: III (ECE)

Course Outcomes (CO):

1. Infer the terminal behaviour of the devices such as Junction Diode, BJT &MOSFET, also

identify the region of operation with its equivalent circuit model.

2. Identify the need for small signal operation and derive the small signal performance parameters

of the device for amplification by relating design variable to the device parameters.

3. Outline and parse the performance parameters of various feedback topologies & large signal

amplifiers.

4. Develop the basic analog functional block for an application, and verify its functionality using

a suitable ECAD tool.

Model Question Paper

Total Duration (H: M): 3:00

Course: Analog Electronic Circuits

Maximum Marks: 100

Q.No

Questions

Marks

CO

BL

PI

UNIT I

1a

Design the following circuit to provide the output voltage V

0

of 3.8V. Assume

that the diodes have 0.7V drop at 1mA and ∆V=0.1V/decade change in current.

7

1

3

2.1.2

1b

Derive the DC bias currents I

B

, I

C

, I

E

, V

CE

and S

ICO

for voltage divider biasing

using BJT. Draw the DC load line and locate the operating point. With the help

of sequence of events show how the operating point is stabilized.

7

1

2

1.4.2

1c

Design a circuit using suitable components to obtain the following input- output

characteristics and explain the working of the same.

6

1

3

2.1.2

2a

The input voltage Vi to the circuit shown below varies linearly from 0 to 150V.

Sketch the output waveform. Assume diodes as ideal.

7

1

3

2.1.2

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE1

Q.No

Questions

Marks

CO

BL

PI

2b

List different diode models. Explain any three models in detail.

7

1

2

1.4.2

2c

Identify the circuit and plot the output waveform if the input signal V

i

shown

below is applied. Given C=1µF, V= 5V, cut in voltage of the diode V



=0.7V

6

1

3

2.1.2

3a

Identify the following amplifier configuration and determine the DC bias

voltages and currents to locate the Q-point. Compute various amplifier

parameters when R

1

=68kΩ, R

2

=12kΩ, V

CC

=18V, R

C

=2.2kΩ, R

E

=1.2kΩ,

h

fe

=180, h

ie

=2.75KΩ, h

oe

=25µmho.

7

2

3

2.1.2

3b

Prove that r

d

= nV

T

/I

D

for a small signal diode model with necessary circuit

diagram and transfer characteristics curve.

7

1

2

1.4.2

3c

Draw the steady state output waveform for the following circuit indicating

maximum and minimum value of the output. Given R

r

=2MΩ, R

f

=0Ω cut-in

voltage of diode = 0V, input voltage is 5KHz square wave varying between +10V

and -10V.

6

1

3

2.1.2

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE2

Q.No

Questions

Marks

CO

BL

PI

UNIT II

4a

Find the values of circuit elements shown below for given current I

D

of 0.4mA,

V

D

=0.5V, V

t

=0.7V, μ

n

C

ox

= 100mA/V

2

, L=1μm & W=32μm V

DD

=-V

SS

=2.5V.

Neglect channel length modulation effect.

7

2

3

1.4.2

4b

Design the circuit elements as shown in below figure to establish a DC drain

current of 0.5mA. The NMOS is specified to have V

t

=1V and k

n

’(W/L)=1mA/V

2

and λ=0. Calculate the percentage change in the value of I

D

obtained when the

MOSFET is replaced with another MOSFET having same k

n

’(W/L) but V

t

=1.5V

7

2

3

2.1.2

4c

Draw the DC equivalent, AC equivalent and small signal equivalent model for

common gate amplifier and derive the expressions for input, output impedance

and voltage gain.

6

2

3

1.4.1

5a

Derive an expression for drain current I

D

for NMOS in different regions of

operation.

7

1

3

1.4.2

5b

Consider common source amplifier with constant current source biasing

technique where V

DD

= -V

SS

=15V, current I=0.5mA, R

G

=4.7MΩ, R

D

=10KΩ,

V

t

=1.5V and K

n

’(W/L)=1mA/V

2

. Determine the Q-points and all the amplifier

parameters assuming V

A

=75V.

7

2

3

1.4.2

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE3

Q.No

Questions

Marks

CO

BL

PI

5c

Using two transistors Q

1

and Q

2

having equal lengths but different widths related

by W

2

/W

1

= 5. Design a circuit that replicates current and obtain I=0.5mA. Let

V

DD

=5V, k

n

’(W/L)

1

= 0.8mA/V

2

, V

t

=1V and λ=0. Find the required value of R?

What is voltage at the gates of Q

1

and Q

2

? What is the lowest voltage allowed at

the drain of Q

2

while Q

2

remains in the saturation region?

6

2

3

2.1.2

6a

Explain the working of N-channel enhancement mode MOSFET with relevant

diagrams.

7

1

2

1.4.2

6b

The NMOS transistors used in the following circuits have V

t

=1V, μ

n

C

ox

= 120

µA/V

2

, λ=0, L

1

=L

2

=L

3

=1μm. Find the equivalent values of gate widths for each

of transistors to obtain voltage values as indicated in the figure and current of

120µA.

7

2

3

2.1.2

6c

A drain current of 115µA and drain voltage of 3.5V is to be developed across the

MOSFET shown in below figure, obtain the value of R to meet the requirement.

Given V

t

= -0.7V, V

DD

=5V µ

p

C

ox

=60µA/V

2

, L=0.8µm and λ=0. Determine the

width of the channel.

6

2

3

2.1.2

UNIT III

7a.

An amplifier with negative feedback has a voltage gain of 120. It is found that

without feedback, an input signal of 60mV is required to produce a particular

output. Find the Av and β of the amplifier.

6

3

2

1.4.2

7b.

Discuss the general characteristics of a negative feedback amplifier.

6

3

2

1.4.2

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE4

Q.No

Questions

Marks

CO

BL

PI

7c.

Derive an expression for input and output resistance of a voltage shunt feedback

amplifier, and explain.

8

3

1.4.2

8a.

Explain the classification of power amplifiers based on the location of the

operating point with neat diagrams.

6

3

2

1.4.2

8b.

A class B power amplifier is delivering an output voltage of 10 volts peak to an

8 Ω load, if the DC power supply is 30 volts; calculate i) DC power input. ii) AC

power delivered to the load iii) Conversion efficiency iv) Power dissipated in the

collector of each transistor.

6

3

1.4.2

8c.

A loud speaker with an 8 ohm input resistance requiring a power of 0.5 W is to

be driven by the following amplifier configuration. V

CC

is a 9V battery, and the

identical transistors have V

CEsat

= 0.5 V and I

BEO

=0. Select a suitable turn’s ratio

for output transformer.

8

3

2.1.2

34%

66%

Blooms Level wise Marks

Distrbution

Level 2 Level 3

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE5

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 –

Analysing, 5 – Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

0

10

20

30

40

50

60

70

80

C01 C02 C03 C04

Course Outcome wise

Marks Distribution

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE6

Course Name: Automotive Electronics

Semester: VI (ECE)

Course Outcomes (CO):

1. Discuss the overview of automotive components, subsystems, design cycles, communication

protocols and safety systems employed in today's automotive industry.

2. Determine the role of electronics for the areas like In-vehicle architectures, networking,

engine management systems, vehicle safety systems & infotainment systems.

3. Select, classify and interface sensors to automotive systems.

4. Establish the need of vehicle safety standards and diagnostics systems in the automotive

industry and implications on OEMs, Suppliers and Customers.

5. Design and implement an automotive sub system to realize Electronic Control Unit.

Model Question Paper

Total Duration (H: M):3:00

Course: Automotive Electronics

Maximum Marks: 100

Q.No

Questions

Marks

CO

BL

PI

UNIT I

1a

The vehicle is to be started on a cold winter morning, and then has to navigate

hilly terrains. How does the engine cope-up with the different requirements as

the vehicle goes from start to cruising? Suggest a design strategy using different

control modes with appropriate details.

8

2

3

2.1.2

1b

What is Stoichiometric ratio?

i) Calculate Lambda if air fuel ratio is 13.2.

ii) Determine the fuel injector pulse duration (base pulse width Tw) and

fuel quantity for the eight cylinder fully warmed up and very cold engine

running at 4000 rpm, having a fuel flow rate of 0.0022Kg/sec and mass

air flow rate of 0.0035Kg/sec.

6

2

3

1.4.1

1c

For the development of an Engine ECU, apply MBD approach adhering to

automotive V design model.

6

1

3

1.4.1

2a

With MAF sensor malfunctioning as detected by the engine control system

diagnostic function, how engine control system can work effectively as possible

with other existing sensor information for calculating the mass air flow rate.

8

2

3

1.4.1

2b

Assume a vehicle is running at a fixed rpm of 8000 and further the driver

demands for increase in speed. How the engine ECU handles driver’s request

using ignition timing? Suggest a suitable Instrumentation system with related

electronics for closed loop control of ignition timing.

6

2

3

2.2.3

2c

Vehicle is moving with a high speed; suddenly the driver applies the brakes, what

is the physical consequence of this condition on wet and dry surface? Provide a

suitable control system/electronic solution to avoid the damage.

6

1

3

2.2.3

3a

What do you mean by Engine Mapping? For the engine operating in closed loop

mode how the variations in,

i) Exhaust gas recirculation

ii) Air fuel ratio and

iii) Ignition timing

affect its performance. Show with the necessary plots.

8

2

1.4.1

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE7

Q.No

Questions

Marks

CO

BL

PI

3b

Elaborate on different segments of automotive industry and also discuss about

automotive supply and value chain.

6

1

2

1.4.1

3c

Vehicle is moving on an icy surface with the engine rpm of 4000, but the vehicle

is unable to move forward, what is the physical consequence of this condition?

Provide a control system solution to overcome this problem.

6

1

2

2.2.3

UNIT II

4a

Describe the control system which provides a solution for wheel spinning, and

discuss the related control functions. Brief on operating sequence of drivers air

bag.

8

3

2

1.4.1

4b

Compare event driven and time triggered communication strategies. Calculate

nominal and maximum T

Header

,T

Response

and T

Frame,

if LIN is operating at 10Kbps

baud rate and reserved time is set to 30% for transmitting two bytes of data.

6

2

3

2.1.2

4c

What is ride and handling of an automobile? How electronic suspension system

manages the compromise between ride comfort and handling.

6

3

2

1.4.1

5a

Discuss the physical mechanism of wheel lock and vehicle skid that can occur

during braking; How the ABS configuration provides a solution for this. If the

vehicle longitudinal acceleration is zero,

i) Calculate the wheel slip if vehicle speed is matching with wheel speed?

ii) Calculate wheel slip for Fl(Front left) and Fr(Front right), when vehicle speed

is 70kph and WssFl(Wheel speed front left) and WssFr(Wheel speed front right)

are reading 67kph and 69kph respectively

iii) Calculate wheel slip when panic braking is done at 150kph and ABS is shut

down due to pump failure?

8

3

1.4.1

5b

How to improve the efficiency/performance/reliability of engine control unit by

adding any extra sensors for the existing system? Mention the significance of

sensors & related variables to be measured for engine control system.

6

3

2.2.3

5c

Assume that the driver has activated the cruise control switch set for the desired

speed of (say, 60 mph). For the following conditions determine the action of

throttle , controlled by the suitable control algorithm ;

i) If the car is travelling on a level road

ii) If the car were then to enter a long hill with a steady positive slope (i.e.,

a hill going up).

Optimize the system for following performance parameters,

1. Quick response

2. Relative stability

3. Small steady-state error

4. Optimization of the control effort required

6

3

2.1.2

6a

Answer the following with respect to CAN communication

i) The CAN node receives the message as 1011110, state whether the received

information is error free or not. Assume CRC with a generator polynomial as

1011.

ii) How small nodes can be kept from overloading with received messages

iii) Message prioritization in case of CAN protocol.

iv) Draw the message sequence seen by the CAN bus for the given scenario.

8

2

1.4.1

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE8

Q.No

Questions

Marks

CO

BL

PI

6b

Explain the construction and working principle of magnetic reluctance angular

position sensor. What is the drawback of this sensor and how it is overcome?

Discuss the operation of fuel injector.

6

3

2

1.4.1

6c

The fast moving car is turning at the corner, if the vehicle is turning less/more

than the driver’s intention suggest a suitable control system along with the break

circuit configuration to overcome this condition.

6

3

2.1.2

UNIT III

7a

For an electric vehicle propulsion system the hazardous event is described as

“Un intended vehicle acceleration during a low speed maneuver amongst

pedestrians”. Perform suitable hazard analysis and risk assessment for this case.

10

3

2.1.2

7b

An engine going through cold cranking the air/fuel ratio is not able to be

controlled. Analyze the possible faults.

10

3

2

1.4.1

8a

The CAN node has to transmit the speed sensor information from engine ECU

to ESP ECU. The size of the information of 5 bits, show how this message is

transmitted, and discusses how the CAN receiver node determines whether the

message is error free or not.

10

4

3

1.4.1

8b

A 2015 Audi A8 was having a problem with rough running which in turn was

causing the engine management light to illuminate. Analyze the possible faults

10

4

3

2.1.2

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE9

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 –

Analysing, 5 – Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

32%

68%

Blooms level wise marks distribution

Level-2

Level-3

0

10

20

30

40

50

60

CO1 CO2 CO3 CO4

Course Outcome wise marks

distribution

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE10

Course Name: CMOS VLSI Circuits

Semester: V (ECE)

Course Outcomes (CO):

6. Illustrate the CMOS VLSI design flow and Outline the CMOS IC fabrication process

7. Model the DC Characteristics and delays of CMOS logic circuits.

8. Design complex CMOS logic circuits using stick diagrams & interpret layout design rules.

9. Design combinational and sequential CMOS logic networks.

10. Analyze and interpret the static and transient performance of logic gates and verify layouts

using Cadence tool.

11. Design and analyze combinational and sequential logic circuits using Cadence tool.

Model Question Paper

Total Duration (H:M): 3:00

Course: CMOS VLSI Circuits

Maximum Marks :100

Q.No

Questions

Marks

CO

BL

PI

UNIT I

1a

Analyze the impact of Semi-custom and Full-custom VLSI design styles based

on design cycle time and the achievable circuit performance.

6

1

2

1.4.2

1b

What are the limitations of planar VLSI technology, and discuss the advantages

and challenges in 3D devices like FinFET devices.

6

1

2

1.2.1

1c

In VLSI fabrication, oxides in varying thickness and compositions are used for

different processes. Discuss each of them with relevant examples.

8

1

2

1.2.3

2a

Discuss the capacitance modeling of an nMOS device during cutoff, linear and

saturation.

6

2

1.4.1

2b

Design an AOI221 gate using fully CMOS logic, so as to achieve same transient

performance as that of a reference CMOS Inverter.

6

2

3

14.2.2

2c

Solve the node voltages in the arrangements given below if V

tn

= 0.6V and V

tp

=

-0.6V. What may happen to the output voltage, if the back-gate effect is also

considered?

8

2

3

1.4.1

3a

An inverter needs to be fabricated using planar CMOS technology in a twin-tub

process. Illustrate the fabrication steps with cross-sectional views and

appropriate masks used at each stage.

10

1

3

1.2.1

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE11

Q.No

Questions

Marks

CO

BL

PI

3b

A circuit designer has a choice to implement combinational logic using NAND

or a NOR network. Justify the selection if performance is the criteria, and analyze

the speed of a 1 to 0 transition as shown below.

The output cap has a value of C

out

=130fF, while the internal values are

C

1

=C

2

=36fF. The transistors are identical with β

n

=2.0mA/V

2

in a process where

V

DD

=3.3V & V

Tn

=0.7V.

i. Find the discharge time constant for C

out

=130fF using the ladder RC

network.

ii. Find the time constant if we ignore C

1

& C

2

.

iii. What is the percentage error introduced if we do not include the internal

capacitors?

10

2

3

2.1.2

UNIT II

4a

Discuss the phenomenon of latch-up and illustrate ways of dealing with it in

CMOS VLSI design.

6

3

2

1.4.2

4b

What is the need to study λ-based design rules? How are they different from

micron rules? Illustrate λ-based design rules with an example layout.

6

3

14.2.2

4c

Identify the circuit from the layout given below. Is it a valid layout? If yes then

what is the type of logic style it represents?

8

3

2.1.2

5a

Discuss the charge sharing issue in Dynamic CMOS logic. What will happen if

we directly cascade two stages of this gate? Propose a remedy for the cascading

problem.

6

4

3

14.2.2

5b

In the figure, find the output in terms of inputs A, B and C when the clock CK is

high. Also implement the clocked CMOS equivalent of the same.

6

4

3

1.4.2

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE12

Q.No

Questions

Marks

CO

BL

PI

5c

Consider the logic cascade shown in figure below .Use logical effort to find the

relative size of each stage needed to minimize delay through the chain. Assume

symmetric gates with r = 2.5.

8

4

3

1.4.2

6a

For the given logical expression for 



 



 



design a suitable logic

circuit using CMOS with stick-diagram layout, and optimize the ordering of poly

gates in the layout by using appropriate method.

10

3

14.2.2

6b

Consider the logic chain of a co-processor shown below. The input at A is

switched from a 1 to 0. Find an expression for the delay time through the chain

using an appropriate procedure.

10

4

3

2.1.2

UNIT III

7a

Illustrate the flip-flop min-delay constraint with appropriate waveforms and

equations.

10

4

3

1.4.2

7b

Explain the working of a standard CMOS flip-flop using TGs.

10

4

2

1.4.2

8a

A simple latch can be implemented using one MOS device. Discuss the

variations and design improvements that can be made based on logic

requirements.

10

4

3

1.4.2

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE13

Q.No

Questions

Marks

CO

BL

PI

8b

Write a short note on Global clock-generation and distribution

10

4

2

1.4.2

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 –

Analysing, 5 – Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

32%

68%

Blooms Level wise Marks

Distrbution

Level 2

Level 3

0

10

20

30

40

50

60

70

80

C01 C02 C03 C04 C05 C06

Course Outcome wise

Marks Distribution

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE14

Course Name: Digital Circuits

Semester: III (ECE)

Course Outcomes (CO):

1. Evaluate the performance metrics of digital circuits.

2. Design a combinational circuit using Medium Scale Integration (MSI) devices by

applying suitable reduction techniques.

3. Design a sequential circuit using Flip Flops.

4. Illustrate the role of different types of memories in computer system.

5. Design & implement combinational/sequential logic system for a given application to

meet the functional requirements.

Model Question Paper

Total Duration (H: M): 3:00

Course: Digital Circuits

Maximum Marks: 100

Q.No

Questions

Marks

CO

BL

PI

UNIT I

1a

Explain the working of ECL OR gate with the help of neat circuit diagram.

5

1

2

1.4.2

1b

Rewrite the following Boolean expression in the minterm and maxterm

canonical forms.

P=F(x,y,z) =x’(y’+z)+z’

5

2

1.4.1

1c

Design a digital circuit using minterm and maxterm generators to realize the

following functionality.

F(A,B,C,D) = m(0,1,3,4, 9,10,11,15).

Use only 2- input gates.

10

2

3

2.2.3

2a

On a certain weekend Ramu, Raheem and Johnny planned to have lunch in a

restaurant and/or watch a movie.

i) When all friends agree, they will have lunch after watching a movie.

ii) No question of going out when none of them agree.

iii) If Ramu agrees, then irrespective of others opinion, they only have

lunch together.

iv) If Ramu disagrees, they will only watch a movie.

Design a suitable digital system by using a positive logic, for the above

conditions with a non programmable technique in SOP and POS formats.

10

2

3

2.2.3

2b

Realize the following Boolean function with multiplexer

F(A,B,C,D) = m(0,1,3,4,8,9,15)

i) Using 16:1 MUX

ii) Using 8:1 MUX with A,B,C select lines

iii) Using 4:1 MUX with A,B select lines

10

2

3

1.4.1

3a

Identify a technique that cannot be programmed and that is used for less number

of variables, to provide minimal sums and minimal products for the following

Boolean function.

f(w,x,y,z)= ∑m( 1,5,8,14) + X( 4,6,9,11,15)

10

2

3

2.2.3

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE15

Q.No

Questions

Marks

CO

BL

PI

3b

Design a digital system to add two Binary Coded Decimal numbers using binary

adder.

10

2

3

1.4.1

UNIT II

4a

Explain the operation of a SR latch.

7

3

2

1.4.2

4b

Design a 4-bit Johnson counter using the principle of Universal Shift Register

(USR)

7

3

1.4.1

4c

The figure shows a binary up counter with synchronous clear input. With the

decoding logic shown, the counter works as a Mod-n counter. Find the value of

n.

6

3

1.4.2

5a

What is race around condition? Explain the remedy for the same problem in case

of JK F/F.

7

3

2

1.4.2

5b

Design a digital system using minimum number of data flip flops to monitor the

number of buses available in the bus depot on daily basis for the following

conditions, over a week.

• On Sunday the occupancy of bus depot is 15 buses.

• On Monday 2 buses were sent for service.

• On Tuesday 3 buses went for college trip.

• On Wednesday 1 bus returned from service.

• Next day 5 more buses left for marriage party.

• On Friday buses returned from college trip.

• On Saturday 2 buses were sent for service.

7

3

2.2.2

5c

Five JK flip-flops are cascaded to form the circuit shown in figure. Clock pulses

at a frequency of 1MHz are applied as shown. Compute the frequency (in KHz)

of the wave form at Q3.

6

3

1.4.2

6a

Analyze a negative edge triggered D Flip-Flop with the help of timing diagram.

7

3

1.4.2

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE16

Q.No

Questions

Marks

CO

BL

PI

6b

Design a digital system using suitable logic to count from (0010)

2

till it reaches

(1101)

2

continuously. The external clock is given to the first Flip-Flop and

triggers it during rising edge of the pulse. The successive Flip-Flops are to be

triggered by its predecessors.

7

3

2.2.2

6c

A three bit pseudo random generator is as shown. Initially the value of output

Y=Y

2

Y

1

Y

0

is set to 111. Evaluate the value of output Y after three clock cycles.

6

3

1.4.2

UNIT III

7a

Draw Mealy and Moore synchronous machine models and label the excitation

variables, state variables, input and output variables.

10

3

2

1.4.2

7b

Design a digital controller for the state table given below using a sequential

component with single input.

Present state

Input

Next state

A

B

X

A

+

B

+

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

10

3

2.2.3

8a

Differentiate between SRAM, DRAM, NVRAM.

10

4

2

1.4.1

8b

Explain the read and write operations of SRAM.

10

4

2

1.4.1

34%

66%

0%

Blooms Level wise Marks

Distrbution

Level 2

Level 3

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE17

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 –

Analysing, 5 – Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

5

55

80

20

0

10

20

30

40

50

60

70

80

90

CO1 CO2 CO3 CO4 CO5

Course outcome wise marks distribution

Marks

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE18

Course Name: Linear Integrated Circuits

Semester: IV (ECE)

Course Outcomes (CO):

1. Describe the operation of current mirror, differential Amplifier using MOSFET and analyze

the respective performance parameters.

2. Design and analyze the operations of linear applications using Op-amp for the given

specifications.

3. Design and analyze the operations of non-linear applications using Op-amp for the given

specification.

4. Realize the functional block for a given application and specifications using op-amp and linear

ICs and verify its functionality using simulator tool.

Model Question Paper

Total Duration (H: M):3:00

Course: Linear Integrated Circuits

Maximum Marks: 100

Q.No

Questions

Marks

CO

BL

PI

UNIT I

1a

Derive the expression for output impedance of Wilson current mirror with

relevant circuit diagram and equivalent circuits.

6

1

3

1.4.2

1b

For the non inverting amplifier R

1

=470Ω and R

F

=4.7K Ω, A=200000, R

i

=2M Ω,

R

o

=75 F

o

=5Hz, supply voltage is +/-15V and output voltage swing is +/-13V

.Calculate the values of A

F

, R

if

. R

of

,F

f

and V

OOT

6

1

2

1.4.2

1c

Consider the circuit shown below, assuming

(W/L)

1-3

=40/0.5,Iref=0.3mA

a. Determine V

b

such that Vx=Vy

b. If V

b

deviates from the value calculated in part (a) by 100mV, what is the

mismatch between I

out

and I

ref

?

8

1

3

2.1.2

2a

Derive an output voltage expression for 5-pack differential amplifier with neat

circuit diagram with relevant Explanation.

6

1

3

1.4.2

2b

Discuss the effect of negative feedback on non-idealities of the Op-amp, with

neat diagram and relevant equations.

6

1

2

1.4.1

2c

Identify the circuit shown below where all transistors have V

t

=0,6V, μ

n

C

ox

=160

W

1

=W

4

=4μm, and W

2

=W

3

=40μm. L=1μm and I

REF

is 20μA. Determine the

8

1

3

2.1.2

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE19

Q.No

Questions

Marks

CO

BL

PI

output current and the voltages at the gates of Q

2

and Q

3

. What is the lowest

voltage at the output for which current source operation is possible? What are

the values of gm and r

o

of Q

2

and Q

3

? What is the output resistance of the circuit?

3a

Identify the amplifier configuration given below, with (W/L)

1,2

=25/0.5,

µ

n

C

ox

=50µA/V

2

, V

TH

=0.6V, λ=γ=0 and V

DD

=3V

a. What is the required input CM for which R

SS

sustains 0.5V?

b. Calculate R

D

for a differential gain of 5

6

1

3

2.1.2

3b

List the ideal characteristics of an OPAMP. Give its symbolical representation

and explain the functions of each terminal. Tabulate the ideal op-amp terminal

characteristics.

6

1

2

1.4.2

3c

For the differential amplifier with the current mirror as a load ,determine the

(W/L) and drain current of all MOSFET’s for the following specifications:

Vdd=-Vss=2.5V,SR>=10V/us (C

load

=5pf),f

-3db

>= 100kHz (CL=5pF),a small

signal voltage gain of 100,-1.5<=ICMR<=2V and P

diss

<=1mW. Model

parameters: K

N

’= 110uA/V

2,

K

P

’= 50uA/V

2,

V

TP

=-0.7V, V

TN

=0.7V, λN=0.04V

-

1,

λ

P

= 0.05V

-1

.

8

1

3

1.4.1

UNIT II

4a

Derive the expression for the output current Io in terms of input voltage Vin for

a grounded load using Op-amp.

7

2

3

1.4.2

4b

Describe the inverting differentiator and obtain the expression for the output

voltage with neat circuit diagram and waveforms

7

2

3

1.4.2

4c

Identify the following circuit operation.

Find

6

2

3

1.4.2

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE20

Q.No

Questions

Marks

CO

BL

PI

1.Lower frequency limit of the operation and

2. Response for the step, square and sine inputs for R

1

=10KΩ, R

f

=100 KΩ and

C

f

=1nF

5a

Derive the expression for summing and averaging amplifier output for

• Non-inverting amplifier

• Differential amplifier

Using Op-amp with neat circuit diagram.

7

2

3

1.4.2

5b

Two different pre-amp microphones are used in a recording studio, one for

vocals and other for the musical instrument with output voltage in the range of

0-2V and 0-0.5V respectively. Design a suitable circuit using Op-Amp to

combine signals from both the microphones in such a way that the signal

corresponding to the musical instrument should be twice amplified as that of

vocal signal.

7

2

3

2.1.2

5c

i. Find V

N

,V

P

and V

o

in the circuit if Vs=9V

ii. Find the resistance R that, if connected between the inverting input pin of the

op-amp and ground which causes Vo to double.

6

2

3

1.4.2

6a

Obtain the output expression using a suitable circuit to get the following

waveform Z (t) at the output side. Explain with the help of frequency response.

7

1

2

1.4.2

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE21

Q.No

Questions

Marks

CO

BL

PI

6b

It is required to measure the weight of the vehicle using weigh bridge system,

arrive at a suitable signal conditioning circuit for measuring the weight in terms

of voltage. Using circuit analysis techniques arrive at an expression for the output

voltage in terms of input weight.

7

1

3

2.1.2

6c

Obtain a suitable circuit for the following frequency response with A

F

=10, f

H

and

also derive the expression for the gain A

F

and cut off frequency f

H

6

2

3

2.1.2

UNIT III

7a.

Design a circuit using Op-Amp to obtain the following transfer characteristics.

Explain the operation using waveforms and obtain the expressions. V

LTP

=-2;

V

UTP

=3; V

SAT

=15; –V

SAT

=15.

10

3

2.1.2

7b.

Draw the circuit configuration to generate triangular wave, describe the circuit

operation using waveforms.

10

3

2

1.4.2

8a.

I Implement a monostable multivibrator using the timer circuit shown in below

figure. Also determine an expression for ON time ‘T’ of the output pulse.

I

10

3

1.4.2

8b.

Explain the precision peak detector and precision clamping circuit with neat

diagrams.

10

3

2

1.4.2

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE22

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 –

Analysing, 5 – Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

34%

66%

Blooms Level wise Marks

Distrbution

Level 2

Level 3

0

10

20

30

40

50

60

70

80

C01 C02 C03 C04

Course Outcome wise

Marks Distribution

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE23

Course Name: Operating System and Embedded Systems

Semester: V (ECE)

Course Outcomes (CO):

12. Discuss the core structure and functionality of operating system and Real-time Operating

system.

13. Study and analyze various algorithms related to process management and resource

management.

14. Discuss the various Kernel objects used to achieve task synchronization and communication.

15. Discuss the concepts of embedded system, their classification and categorize the components

of typical embedded systems.

16. Develop an embedded application for given specification with hardware and software

requirements

Model Question Paper

Total Duration (H:M): 3:00

Course: Operating System and Embedded Systems

Maximum Marks :100

Q.No

Questions

Marks

CO

BL

PI

UNIT I

1a

Calculate the average wait time & TAT for following processes using

• SJF (pre-emptive & non-pre-emptive),

• Priority scheduling

• RR

Compare their performance.

Process

AT

BT

Priority

P1

0

4

0

P2

1

5

1

P3

3

2

P4

4

1

3

P5

2

6

4

P6

6

5

8

2

3

1.4.5

1b

i. Apply suitable code optimization techniques for the following C

statements.

ii. Determine the longest path through each code fragment, assuming that

all statements can be executed in equal time and that all branch

directions are equally probable.

a. if (i < 10) { x = a + b; }

else { x = c – d; y = e + f; }

b. for (i = 0; i < 32; i++)

if (a[i] < 20)

x[i] = a[i] * c[i];

c. if (a < 30) {

if (b < 40)

w = r + s; else {

w = r – s;

x = s + t;

}

if (c > 50) {

w = r + t;

x = r – s;

y = s + u;

}

6

3

2.2.3

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE24

Q.No

Questions

Marks

CO

BL

PI

}

else {

1c

Suppose computer system hardware is to be operated without an OS, discuss the

scenario of using this computer for running an application in which password

authentication is to be made. Discuss disadvantages of a computer without an

OS. Elaborate on the role of OS and its functions.

6

1

2

1.4.3

2a

Under what circumstances is rate-monotonic scheduling inferior to earliest-

deadline-first scheduling in meeting the deadlines associated with processes?

Consider the following activities of a car control system.

1. C= worst case execution time

2. T= (sampling) period

3. D= deadline

Speed measurement: C=4ms, T=20ms, D=20ms

ABS control: C=10ms,T=40ms, D=40ms

Fuel injection: C=40ms,T=80ms, D=80ms

Try any of the two methods to schedule the tasks.

8

2

3

2.2.3

2b

In a multiprogramming and time sharing environment, several users share the

system simultaneously. Discuss the security problems that may arise in the

situation. Assess the degree of security that can be achieved in both the cases.

6

3

2

1.4.3

2c

It is required to generate a student’s register enrolled for engineering course in

alphabetical order to distribute student's ID.

Develop a code using

i. Inline assembly

ii. Mixed assembly

comment on the performance w.r.t time and memory using appropriate

optimization technique

6

1

3

2.2.3

3a

Convert the algorithm given in flowchart into

1) “Normal” assembler, where only branches can be conditional.

2) ARM assembler, where all instructions are conditional.

3) Develop 'C' code with optimization

4) Comment on performance w.r.t 1, 2 and 3

8

3

2.2.3

3b

Construct a simple “for loop” in C which operates on an array element in each

iteration. Then rewrite the code using suitable loop optimization techniques.

Comment on the performance.

6

1

3

1.4.3

3c

An Operating system’s PID manager is responsible for managing process

identifiers. A unique ID is assigned to the process when it is first created. Discuss

how this PID is managed using PCB. Elaborate on process and PCB.

6

2

1.4.3

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE25

Q.No

Questions

Marks

CO

BL

PI

UNIT II

4a

Write a code for the scenario where an application needs to perform division

operation and display the result on a serial port

i. Whenever the divisor is found to be zero, message to be displayed is

“division error”

ii. Whenever the divisor is smaller than zero, message to be displayed is

“underflow error”.

8

2

3

2.2.3

4b

An automotive company claims that the active suspension components in its

newest vehicles analyze and respond to road conditions for every 2.5 cm at 100

kilometers per hour (1 inch of highway travel at 60 mph). Develop a prototype

C code by applying RTOS concepts to realize the above scenario.

6

3

1.4.3

4c

Write an application to measure the time taken to execute the “for loop”

i) With “loop unrolling”

ii) Without “loop unrolling”

Both loops are part of two different tasks. Display the time using serial port.

6

1

3

1.4.5

5a

Write an optimized code to create two applications:

i. “App1” to convert analog to digital data and store the result in memory

pool,

ii. “App2” to use this information and display on serial port.

Demonstrate optimization with code profiling.

8

2

3

2.2.3

5b

What are the different means of achieving multitasking? Explain with suitable

examples.

6

3

2

1.4.3

5c

Develop a prototype C code by applying RTOS concepts to realize the simple

vending machine. The vending machine will sell bottles for $75. Customers can

enter either a dollar or quarters. Once sufficient amount of money is entered, the

vending machine will dispense a bottle of water. If user enters a dollar it will

return one quarter in change.

A Money Receiver detects the total money entered. The bottle dispenser system

holds the water bottles and releases one bottle when the input signal is asserted.

A coin return system holds quarters for change and will release one quarter when

input is dollar. The money receiver will reject money if a dollar and quarter are

entered simultaneously.

6

1

3

2.2.3

6a

Write a code to create 3 applications, where they share stepper motor:

i. “App1” rotates stepper motor in clockwise for 5 rotations

ii. “App2” rotates it in anticlockwise for 5 rotations

iii. “App3” stops it for one second (use hardware timer)

8

3

2.2.3

6b

Consider a machine with 64 MB physical memory and a 32-bit virtual address

space. If the page size is 4KB, what is the approximate size of the page table?

Explain the steps with neat diagrams.

6

1

2

1.4.3

6c

Two analog sensors are connected to INT0 & INT1 to monitor blood pressure

and body temperature respectively. It is required to generate an alarm if any of

the readings exceed the set threshold value. Identify the number of tasks, kernel

objects and scheduling algorithm required to handle this situation. Develop a

code to demonstrate the same.

6

2

3

1.4.5

UNIT III

7a

Consider a 2M-pixel digital camera with 24 bits per pixel, 8 Mbytes of memory,

and a 128-Mbyte flash card. Assuming computation is instantaneous, with a 10-

10

3

2.2.3

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE26

Q.No

Questions

Marks

CO

BL

PI

ns word-addressed memory, how many pictures per minute can you take, and

after how many pictures does the camera stop writing pictures to the flash? How

does this change for a 3M-pixel digital camera with all other parameters

remaining the same?

7b

Why is backward compatibility less important in an embedded device than in a

general-purpose device? In what ways it is still important?

10

3

2

1.4.3

8a

Explain the advantages of wireless devices. How do wireless devices network

using different protocol?

10

4

2

1.4.3

8b

Develop a C code to program RTC to generate HOURS, MINUTES and

SECONDS using I2C protocol.

10

4

3

1.4.5

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 – Analysing, 5 –

Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

31%

69%

Level 2

Level 3

Blooms level wise marks distribution

0

10

20

30

40

50

60

70

CO1 CO2 CO3 CO4 CO5

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE27

Course Name: Signals and Systems

Semester: III (ECE)

Course Outcomes (CO):

1. Identify different signals and systems and state their properties both in Continuous and discrete

domain.

2. Apply the concept of impulse response and perform convolution in both Continuous and discrete

domain to analyze the linear time invariant systems.

3. Perform spectral analysis of discrete time periodic and aperiodic signals using Fourier series,

Fourier transform and Z transform techniques.

4. Perform the transformations on a given signal and identify appropriate operations.

Model Question Paper

Total Duration (H: M): 3:00

Course: Signals and Systems

Maximum Marks: 100

Q.No

Questions

Marks

CO

BL

PI

UNIT I

1a

Categorize the following signal in terms of energy or power and compute its

value.

6

1

2

1.1.3

1b

Obtain the response and sketch the output of the system for the signals x

1

(n) =0.5

[u (n)-u (n-3)] and x

2

(n)=u[n]- u[n-2].

8

2

3

2.1.2

1c

Consider the system shown below; determine whether it is (a) memory less (b)

Causal (c) linear (d) time-invariant or (e) Stable.

6

1

3

1.1.3

2a

For given signals x(n) and h(n) compute the interaction between signal and the

impulse response of a system.

x(n) = {1,3,-1,4} h(n) = {4,-1,2}

6

1

3

2.1.2

2b

A Continuous-time signal x [t] is shown in figure below. Sketch each of the

following signals.

a) x[t – 4] b) x[3t+7] c) x [-1(t+2) ] d) x [-t+2]

8

1

2

1.1.3

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE28

Q.No

Questions

Marks

CO

BL

PI

2c

Construct signal x(t) using suitable elementary signals. Express x(t) in terms of

the same.

6

1

3

2.1.2

3a

Determine whether the discrete-time signal





















 is periodic. If periodic, find the fundamental

period.

6

1

2

1.1.3

3b

Consider the signals h(t)=[u(t)-u(t-1)] and x(t) shown below. Obtain the response

of the system.

8

2

3

2.1.4

3c

Sketch the Direct form I implementation for the difference equation,



















  













  

















  

And also propose a solution to implement the difference equation with minimum

number of hardware and also sketch the same.

6

2

3

1.1.3

UNIT II

4a

Prove the following properties of DTFT

a) Frequency Differentiation Property

b) Time shift property.

6

3

2

1.1.3

4b

Using appropriate transformation compute the frequency response of the

following time domain signal shown below. Plot the magnitude and phase

spectrum. Also Verify Parseval’s identity.

8

4

3

2.1.4

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE29

Q.No

Questions

Marks

CO

BL

PI

4c

Obtain the frequency response of the LTI system described the impulse response

a) 





























b) 















 





6

4

3

1.1.3

5a

Using appropriate transformation compute the frequency response of the

following time domain signal: 













 







  



 



  





6

3

2.1.4

5b

Obtain the impulse response of the system having the input 













 





and output















 





 







 



 





 



 .

8

3

2.1.2

5c

Prove the following properties of DTFS

a) Convolution Property

b) Linearity property.

6

3

2

1.1.3

6a

Using appropriate transformation find and sketch the time domain signal

corresponding to the following Fourier representation.









  





 



















6

4

3

2.1.2

6b

Let be a sequence with DTFT 





Ω



Evaluate the

following functions of 





Ω



without computing 





Ω





a) 









b) 









c)





Ω

Ω





d)







Ω







Ω





e)







Ω



Ω









Ω

8

3

1.1.3

6c

Obtain the impulse response of the system described by the following equation











 





 





















6

3

1.1.3

UNIT III

7a

Prove the following with respect to Z-Transforms

a) Initial Value theorem

b) Time shift

c) ROC of an finite non-causal sequence is entire Z-plane except Z=∞

10

3

2

1.1.3

7b

Find the Z-Transform of the following sequences and estimate the ROC

a) 



















 













 

10

3

1.1.3

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE30

Q.No

Questions

Marks

CO

BL

PI

b) 



















 











  





 







c) 











  



   

8a

Calculate the Inverse Z-Transform of















 



















































10

3

1.1.3

8b

Find the impulse response of the system described by the difference equation



















  



 

10

4

3

2.1.2

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 –

Analysing, 5 – Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

26%

74%

Blooms Level wise Marks

Distrbution

Level 2

Level 3

0

10

20

30

40

50

60

70

80

C01 C02 C03 C04

Course Outcome wise

Marks Distribution

All India Council for Technical Education

Model Question Paper

Electronics and Communication Engineering

ECE31

Mechanical Engineering

Model Question Papers

For Undergraduate Program

The model question papers are suggestive blueprints. The primary aim of these

question papers is to bring clarity about the process of connecting questions to

performance indicators and hence to course outcomes. Further, these question

papers demonstrate how bloom’s taxonomy can be used to understand the quality

of question papers and their effectiveness in assessing higher order abilities. The

structure of question papers, number of questions, choices given, time given for

examination etc., can vary based on the practices of the University or college.

All India Council for Technical Education

Table of Contents

Name of Course Page No.

1. Introduction to Finite Element Methods ME1- ME5

2.

Design of Thermal Systems

ME

6

-

ME

12

3. Manufacturing Processes ME13- ME15

4.

Machines & Mechanisms

ME

1

6

-

ME

20

5. Mechanical Vibrations ME21- ME26

6.

Mechanics of Materials

ME

27

-

ME

32

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

Course Name: Introduction to Finite Element Methods

Course Outcomes (CO):

At the end of the course the student should be able to:

1. Analyze bars and beams using variational principles and weighted residual techniques.

2. Establish shape functions for various elements to arrive at an elemental stiffness matrices and

load vectors to obtain global equilibrium equation.

3. Idealize the problem based on various methodologies for performing finite element analysis.

4. Solve analytically the real time field problems related to Static structural, Non-linear, Linear

buckling, Dynamic and Thermal analysis.

5. Perform analytical calculations pertaining to Drop/Impact test, Fatigue analysis and

Composite structures.

6. Discuss the various experimental methodologies related to Non Destructive testing and draft

the report.

Model Question Paper

Total Duration (H:M):3:00

Course : Introduction to Finite Element Methods

Maximum Marks :100

Q.No

Questions

Marks

CO

BL

PI

1a)

Differentiate between FEM, FDM, FVM and BEM. Explain which

method is suited for analysis of polymer composite crack propagation

along with software tool and justify.

10

CO1

L2

1.4.1

1b)

Using Rayleigh-Ritz method determine the expressions for deflection in a

simply supported beam subjected to uniformly distributed load over entire

span. Also calculate the percentage of error when RR method values are

compared with analytical values.

10

CO1

L3

1.4.1

2a)

Consider a thin (steel) plate as shown in figure 2a. The plate has a uniform

thickness t=1in, Youngs modulus E = 30x10

6

psi, and weight density

0.2836lb/in

3

. In addition to its self-weight, the plate is subjected to a point

load p = 100lb at its midpoint. a) Model the plate with two finite element

points b) Write down the element stiffness matrices and element body

force vectors. c) Assemble the structural stiffness matrix K and global

load factor F. d) Using the elimination approach, solve for the global

displacement vector Q. e) Evaluate the stresses in each element.

10

CO 2

L3

2.3.1

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME1

Q.No

Questions

Marks

CO

BL

PI

Fig.2a

2b)

Explain Different types of elements in FEM. Explain H type and P type

method with the help of suitable example.

10

CO3

L2

2.4.1

3a)

Using Galerkin’s method, establish an expression of the maximum

deflection for a cantilever beam having length L, moment of inertia I and

young’s modulus E, subjected to point load P at the end. Also calculate

the percentage of error when Galerkin’s method values are compared with

analytical values.

10

CO2

L2

2.4.3

3b)

Explain different mesh quality parameters. Discuss any five of them.

10

CO3

L2

2.4.1

UNIT-II

4a)

For a given problem how a FEA engineer has to decide the following

i) Element size ii) Element Type iii) Type of analysis to carry out iv)

Linear or Non linear analysis v) How results are compared with real time

scenario?

10

CO4

L3

2.4.1

4b)

An axial load P=200x10

3

N is applied on a bar as shown in Fig. 4b. Using

the penalty approach for handling boundary conditions, determine nodal

displacements, stress in each material and reaction forces.

Fig. 4b

10

CO3

L3

2.4.1

5a)

A composite wall consists of three materials, as shown in Fig 5a. The outer

temperature is T

o

=20°C. Convection heat transfer takes place on the inner

surface of the wall with T

∞

=800°C and h=25 W/m

2

°C. Determine the

temperature distribution in the wall.

10

CO4

L3

2.4.1

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME2

Q.No

Questions

Marks

CO

BL

PI

Fig.5a

5b)

The two span beam structure of Fig.5b is free to rotate at supports A and

B and is fixed at joint C. Compute the rotations at supports A and B and

the reactions at all supports. Construct Shear Force and Bending Moment

Diagrams.

Fig. 5b

10

CO2

L3

2.4.3

6a)

Consider the four bar truss shown in Figure 6a. It is given that modulus of

elasticity E= 29.5 × 10

6

psi and cross-sectional areas A = 1in.

2

. for all

elements. Complete the following:

a) Determine the element stiffness matrix for each element.

b) Assemble the structural stiffness matrix K for the entire truss.

10

CO3

L3

2.4.1

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME3

Q.No

Questions

Marks

CO

BL

PI

Fig. 6a

6b)

For the beam shown in figure 6b, determine the support reactions and

stresses in each element. Take E=200 GPa, I=4xl0

6

mm

4

.

Fig. 6b

10

CO4

L3

2.4.1

UNIT- III

7a)

Identify the boundary condition and type of analysis need to be carried out

for multi storey building for cyclone hit condition as shown in figure 7a

and justify your answer with suitable assumptions.

Fig.7a

10

CO5

L4

2.2.3

7b)

Idealize and express the methodology of solving the problem by FEA

approach. Consider a person of 100 kg sitting on the bicycle as shown in

figure 7b. Justify the answer with suitable assumptions.

Fig.7b

10

CO5

L4

2.2.2

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME4

Q.No

Questions

Marks

CO

BL

PI

8a.

The following figure 8a. shows a LCD TV which need to be analyzed for

drop test. The average fall height of the LCD TV is 4 feet. Idealize and

solve the problem with suitable assumptions.

Fig 8a

10

CO6

L4

2.4.3

8b.

Illustrate different types of analysis that can be possible with a FEA tool

and elaborate the process of solving with suitable assumption on material

and boundary conditions. The component is as shown in fig 8b.

Fig 8b

10

CO6

L4

2.4.1

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 – Analysing, 5 –

Evaluating, 6 - Creating)

CO – Course Outcomes PO – Program Outcomes; PI Code – Performance Indicator Code

25

50

25

Bloom's Level wise

Marks Distribution

Level L2

Level L3

Level L4

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME5

Course Name: Design of Thermal Systems

Course Outcomes (CO):

1. Select suitable heat exchanger, based on the heat transfer process, geometry and

construction for a given application.

2. Design shell and tube heat exchanger for a given process requirement.

3. Develop mathematical models of the thermal systems like heat exchangers, condensers and

evaporators.

4. Analyse design problems on piping system.

5. Develop mathematical statement of optimization for a given thermal system.

6. Optimize thermal systems using Lagrange multipliers method of optimization.

7. Analyse thermal systems using dynamic programming method.

Model Question Paper

Total Duration (H:M):3:00

Course: Design of Thermal Systems

Maximum Marks: 100

ii) Use of Heat transfer data Handbook is permitted.

Note: i ) Answer any two full questions for Unit-1, any two full questions from Unit-II and any one full

question from Unit-III

Q.

No.

Questions

Marks

CO

BL

PI

Unit-I

1 a

Name the specific heat exchanger construction type that

may be used in each of the following application and justify

your selection.

a. Milk pasteurizing

b. Power condenser

c. Automotive radiator

d. Marine oil cooler

e. Air cooled condenser

10

CO1

L3

1.3.1

b

A two shell pass and two tube pass shell & tube heat

exchanger is used to heat process fluid (water) from 30°C

to 80°C. The mass flow rate of the process fluid is

8000kg/hr and that of the service fluid is 6000kg/hr, which

is available at a temperature of 200°C. The overall heat

transfer coefficient is 1500W/ m

2

K. Find out the outlet

temperature of service fluid, and the area required for the

heat transfer. After a long time of operation of the heat

exchanger, it is found that the outlet temperature of the

10

CO2

L3

1.4.1

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME6

process fluid is only 70°C. Find the fouling resistance

developed during this period.

Cp of the service fluid = 2.8kJ/Kg K

Cp of the process fluid =4.2kJ/Kg K

2. a

What are the different kinds of spiral plate heat exchangers

and what are their limitations?

10

CO1

L2

1.3.1

b.

A counter flow shell and tube heat exchanger is used to cool

engine oil flowing through the tube at 0.25kg/s, the specific

heat of oil is 2.2kJ/kg K. This oil is cooled by the water,

which flows at 0.3kg/s. The oil enters at 560K and leaves

at 340K. The cooling water enters at 298K. Find the length

of the tube if the heat transfer coefficient from oil to tube

surface is 2340W/m

2

K, and from tube surface to water is

6215W/m

2

K. The mean diameter of the tube is 18mm.

10

CO2

L3

1.4.1

3.a

A process industry uses a shell & tube heat exchanger, the

shell specifications are as follows,

Length of shell: L

s

= 4.5 m

Shell diameter ; D

s

= 500mm

Outside diameter of tube: D

o

= 24.5 mm

Tube pitch ( square) : Pi =32.5 mm

Baffle spacing: L

B

=132 mm

The fluid has the following specifications ,

Mass flow rate m

i

= 5.2kg/s

Density ρ = 820 kg/m

3

Specific heat capacity Cp = 2.24 kJ/kg K

Dynamic viscosity μ = 0.384 X 10

-3

Ns/m

2

Thermal conductivity k = 0.125 W/ mK.

By Kern’s method, find shell side heat transfer coefficient

and pressure drop.

10

CO2

L3

1.4.1

b.

A shell & tube heat exchanger has steel pipes of 32mm

outer diameter and 26mm inner diameter. Ethylene glycol

flows in tubes having a heat transfer coefficient of

1680W/m

2

K and a fouling resistance of 0.00065 m

2

K/W.

Water flows on shell side having a heat transfer coefficient

of 3215W/m

2

K, and a fouling resistance of 0.0003 m

2

K/W.

The thermal conductivity of tube is 68 W/ m K. Find the

overall heat transfer coefficient of the heat exchanger.

10

CO2

L3

1.4.1

Unit-II

4 a.

Between two stages of air compression, the air is to be

cooled from 95°C to 10°C. The facility to perform this

cooling, shown in Fig Q4 (a), first cools the air in a

precooler and then in a refrigeration unit. Water passes

through the condenser of the refrigeration unit, then into the

precooler, and finally to a cooling tower, where heat is

rejected to the atmosphere.

The flow rate of compressed air is 1.2 kg/s, and the specific

heat is 1.0 kJ/(kg K). The flow rate of water is 2.3 kg/s, and

10

CO5

L4

2.1.2

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME7

its specific heat is 4.19 kJ/(kg K). The water leaves the

cooling tower at a temperature 24°C. The system is to be

designed for minimum first cost, where this first cost

comprises the cost of the refrigeration unit, precooler, and

cooling tower, designated x

1

, x

2

and x

3

respectively, in

dollars. The expressions for these costs are

Refrigeration unit: x

1

= 48q

1

Precooler: x

2

= 50q

2

/(t

3

-t

1

)

where the equation is applicable when t

3

> t

1

Cooling tower: x

3

= 25q

3

where the q’s are rates of heat transfer in kilowatts, as

designated in figure. The compression power P kW

required by the refrigeration unit is 0.25q

1

, and both q1 and

the compression power must be absorbed by the condenser

cooling water passing through the refrigeration unit.

Develop (a) the objective function and (b) the constraint

equations for optimization to provide minimum first cost

Fig. Q4(a): Air cooling system

b.

Oil at 20°C (ρ =888kg/m

3

and μ =0.800 kg/ms) is flowing

steadily through a 0.05 m diameter 40 m long pipe. The

pressure at the pipe inlet and outlet are measured to be 745

and 97 kPa, respectively. Determine the flow rate of oil

through the pipe assuming the pipe is (a) horizontal, (b)

inclined 15° upward, (c) inclined 15° downward. Also

verify that the flow through the pipe is laminar.

10

CO4

L3

1.4.1

5 a.

A counter flow heat exchanger cools 5 kg/s of oil, C

p

=2.4

kJ/kg K, with water that has a flow rate of 7.5 kg/s. The

specific heat of water is 4.19 kJ/kg K. Under the original

operating conditions the oil is cooled from 75°C to 40°C

when water enters at 25°C. To what temperature will the oil

10

CO3

L3

1.4.1

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME8

be cooled if it enters at 65°C and there is no change in the

entering water temperature, the flow rates of either fluid or

the heat transfer coefficients?

b

A water pump is used to pump from one large reservoir to

another large reservoir that is at a higher elevation. The free

surfaces of both reservoirs are exposed to atmospheric

pressure, as sketched in Fig. 5(b). The dimensions and

minor loss coefficients are provided in the figure. The

pump’s performance is approximated by the expression

H

available

= H

o

– aV

2

, where shutoff head H

o

=24.4 m of water

column, coefficient α =0.0678 m/Lpm

2

, available pump

head H

available

is in units of meters of water column, and

capacity V is in units of liter per minute. Estimate the

capacity delivered by the pump.

Fig. Q5(b): Pumping System

10

CO4

L3

1.4.1

6 a

The performance data for a centrifugal water pump are

shown in Table Q6(a) for water at 20°C (Lpm = Litre per

minute). (a) For each row of data, calculate the pump

efficiency (percent). Show all units and unit conversions for

full credit. (b) Estimate the volume flow rate (Lpm) and net

head (m) at the BEP of the pump.

Table Q6(a): Pump performance

V, LPM

H, m

Bp, W

0.0

6.0

12.0

47.5

46.2

42.5

133

142

153

10

CO4

L3

1.4.1

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME9

18.0

24.0

30.0

36.0

36.2

26.2

15.0

0.0

164

172

174

b

A double pipe heat exchanger serves as an oil cooler with

oil flowing in one direction through the inner tube and

cooling water in the opposite direction through the annulus.

The oil flow rate is 0.63 kg/s, oil has a specific heat of 1.68

kJ/kg K, the water flow rate is 0.5 kg/s and its specific heat

is 4.19 kJ/kg K. In a test of the prototype, oil entering at

78°C was cooled to 54°C when the entering water

temperature was 30°C. The possibility of increasing the

area of heat exchanger by increasing the length of the

double pipe is to be considered. If the flow rates, fluid

properties and entering temperatures remain unchanged,

what will be the expected outlet temperature of the oil be if

the area is increased by 20 percent?

10

CO3

L3

1.4.1

Unit-III

7

A solar collector and storage tank is to be optimized to

achieve minimum first cost. During the day the temperature

of water in the storage vessel is elevated from 25°C (the

minimum useful temperature) to t

max

. The collector receives

260 W/m

2

of solar energy; but there is heat loss from the

collector to the ambient air by convection. The convective

heat transfer coefficient is 2 W/m

2

K, and the average

temperature difference during the 10 hour day is (25+t

max

)

/ 2 minus the ambient temperature of 10°C. The energy

above the minimum useful temperature of 25°C that is to

be stored in the vessel during the day is 200,000 kJ. The

density of water is 1000 kg/m

3

, and its specific heat is 4.19

kJ/kg K. The cost of the solar collector is 20A units, where

A is the area in m

2

and the cost of the storage vessel is

101.5V, where V is the volume in cubic meters. (a) Using

A and V as the variables, set up the objective function and

constraint to optimize the first cost. (b) Develop the

Lagrange multiplier equations and verify that they are

satisfied by V=1.2m

3

and A=29.2m

2

20

CO6

L4

3.3.1

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME10

Fig Q7: Solar water heating system

8

The total pressure drop from point 1 to point 5 in the multi-

branch duct system shown in Fig. Q8 below is to be 500 Pa.

Table Q8, presents the costs for various duct sizes in each

of the sections as a function of the pressure drop in the

section. Use dynamic programming to determine the

pressure drop in each section that results in the minimum

total cost of the system.

Fig.Q8 : Duct system

Section

Pressure drop, Pa

Cost, $

1-2

100

150

200

222

205

193

2-3

100

150

200

180

166

157

3-4

100

150

200

135

125

117

4-5

100

150

200

93

86

81

Table Q8 : Pressure drop and costs of sections of duct

20

CO7

L4

3.3.1

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME11

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 – Analysing, 5 –

Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

6

62

32

Bloom's Level Wise

Marks Distribution

L2

L3

L4

0

10

20

30

40

50

CO1 CO2 CO3 CO4 CO5 CO6 CO7

Course Outcome wise

Marks Distribution

Marks

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME12

Course Name: Manufacturing Processes

Course Outcomes (CO):

1. Classify manufacturing processes & enumerate the process steps involved in a sand casting

process and their applications.

2. Recommend a suitable moulding /casting method (sand/special) & a melting furnace to cast

given auto components.

3. Enumerate cleaning/fettling operations and discuss various types of casting defects, possible

causes for their occurrence, detection methods and suggest remedies.

4. Suggest a suitable welding process (arc welding, ultrasonic welding, electron beam welding,

laser beam welding etc) for a given precision welding job.

5. Illustrate the fundamental principles of metal cutting processes and specify suitable machine

tools (traditional/CNC) and develop process plan/part programming for producing given

component.

6. Recommend a suitable forming process for a given component.

7. Recommend a suitable non- traditional/micro-machining/high speed machining method for

a stated application.

Model Question Paper

Total Duration (H:M):3:00

Course: Manufacturing Processes

Maximum Marks: 100

Q.No

Questions

Marks

CO

BL

PI

1a

Manufacturing processes are classified as,

i) Processing operations and

ii) Assembly operations

Mention sub-classifications under these two categories with suitable

examples.

6

CO1

L2

1.4.1

1b

A broken railway track needs welding on-site. Recommend a suitable

process & outline its working principle.

6

CO4

L3

1.3.1

1c

Differentiate between Brazing, Soldering and Welding with the following

aspects,

i) Temperature

ii) Type of material to be joined

iii) Surface finish and

iv) Strength

8

CO4

L2

1.3.1

2a

Discuss the criteria for selection of manufacturing processes.

6

CO1

L2

1.4.1

2b

A precision foundry needs to produce IC engine pistons. Suggest suitable

process and explain the procedure with neat sketch.

6

CO2

L3

1.3.1

2c

Explain the post processes of casting, fettling-cleaning and finishing of

castings.

8

CO3

L2

1.3.1

3a

Enumerate the steps involved in sand casting.

6

CO2

L2

1.3.1

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME13

Q.No

Questions

Marks

CO

BL

PI

3b

A pattern shop has received order to make a wooden pattern for making

sand castings. Discuss various pattern allowances to be considered by him

to produce the required pattern.

6

CO2

L3

1.3.1

3c

With neat sketch, discuss the working principle of investment casting

process and list the advantages & limitations of it.

8

CO2

L2

1.3.1

4a

Draw Merchant’s force diagram. State the assumptions made in the

development of such a diagram.

6

CO5

L2

2.3.2

4b

Interpret the program syntax.

N10 G28 U0 W0;

N20 T0101;

N30 G00 X35 Z2;

N40 G00 X30 M03 S1500;

N50 G01 Z64 M08 F0.1;

6

CO5

L3

1.4.1

4c

A drilling operation is performed on a steel part using a 10mm diameter

twist drill with point angle 118

0

. The hole is blind hole with depth of

60mm. Cutting speed=15m/min and feed =0.20mm/rev. Determine,

i) Cutting time of the operation

ii) Material removal rate

8

CO5

L3

2.1.3

5a

Considering the suitable example, explain open and closed loop control

system.

6

CO5

L2

1.4.1

5b

Enumerate the advantages and disadvantages of CNC machines.

6

CO5

L2

1.4.1

5c

In orthogonal cutting operation on a material with the shear yield strength

of 250N/mm², the following data is observed.

Rake angle= 20

0

Uncut chip thickness= 0.3mm

Width of chip= 1.5mm

Chip thickness ratio= 0.4

Friction angle= 40

0

Determine,

i) The shear angle

ii) The cutting force component

iii) The resultant force on the tool

8

CO5

L3

2.1.3

6a

When do you recommend the climb milling and up milling? Explain the

same with diagram.

6

CO5

L3

1.4.1

6b

A typical tool signature of single point cutting tool is 0-7-6-8-15-16-0.8.

Interpret this and show with neat sketch of the tool.

6

CO5

L2

2.3.1

6c

A peripheral milling operation is performed on the top surface of a

rectangular work part which is 200mm long and 40mm wide. The milling

cutter, which is 90mm in diameter and has 13 teeth, overhangs the width

of the part on both sides.

Cutting speed = 70m/min,

chip load = 0.2mm/tooth

depth of cut = 6mm

8

CO5

L3

1.4.1

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME14

Q.No

Questions

Marks

CO

BL

PI

Determine:

i) The actual machining time to make one pass

ii) The material removal rate.

7a

Differentiate between bulk deformation & sheet metal working.

6

CO6

L2

2.1.2

7b

Explain the advantages of thread rolling over thread cutting (machining).

6

CO6

L2

1.3.1

7c

Determine the minimum force capacity press to perform the blanking

operation on 1.5mm thick mild steel sheet with shear strength of

360N/mm². The blanking profile is rectangle with 50×100mm

dimensions.

Also find the total force required if there were two 13mm diameter holes

to be pierced simultaneously in the previous station along with blanking.

8

CO6

L3

1.3.1

8a

Explain in what cases do you prefer non-traditional machining process

suitable.

6

CO7

L3

1.4.1

8b

Explain electric discharge machining process principle with neat sketch

and state its applications.

6

CO7

L2

1.4.1

8c

Additive manufacturing is the key component for the “future of

manufacturing”. Explain your understanding of the statement and outline

two process that are in use today.

8

CO7

L3

2.1.3

52

48

Bloom's Level wise Marks Distribution

Level 2 Level 3

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 – Analysing, 5 –

Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME15

Course Name: Machines & Mechanisms

Course Outcomes (CO):

1. Analyze the given machine/mechanism for their type and mobility

2. Determine the velocity and acceleration of links in the mechanism using graphical and

analytical methods.

3. Carry out the static and dynamic force analysis for a given mechanism.

4. Formulate the equations for kinematic and dynamic analysis of gear and gear trains for a

given gear arrangement.

5. Analyze the dynamic forces and couples on rotating and reciprocating components of

machines to compute the magnitude and direction of balancing mass.

6. Develop a cam profile for a given follower motions.

7. Ascertain the gyroscopic and centrifugal couple fora given application

Model Question Paper

Total Duration (H:M): 3:00

Course: Machines & Mechanisms (15EMEC204)

Maximum Mark: 100

Note: i ) Answer any two full questions for Unit-1, any two full questions from Unit-II and any one full

question from Unit-III

Q.No.

Questions

Marks

CO

BL

PI

Unit 1

1a)

Draw the kinematic diagram for the mechanisms shown

in the Fig.Q1a (i to iv). Compute the mobility.

Landing gear

Fig.Q1a (i to iv)

10

CO1

L3

2.1.2

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME16

1b)

For the mechanisms shown in the Fig. Q1b i) and ii),

locate all the instantaneous centers.

Fig Q1b.i) Self-locking brace Fig Q1b.ii) Landing gear

10

CO2

L2

2.1.3

2a)

Three links in a kinematic chain move relatively to each

other. Prove that they have three instantaneous centers

and lie in a straight line

8

CO2

L2

1.3.1

2b)

The gearbox shaft and propeller shaft of an automobile

are connected by a universal joint. Obtain the expression

for ratio of output shaft speed to input shaft speed.

analyze the conditions when propeller shaft will have i)

maximum speed ii) minimum speed and iii) both shafts

have equal speeds.

12

CO1

L3

1.3.1

3a)

Describe with neat sketch the mechanism used in the

automobile steering system and obtain the expression

for condition of correct steering.

6

CO1

L2

1.3.1

3b)

The mechanism shown in the Fig. Q3b) is used to feed

cartons to a labeling machine and, at the same time, to

prevent the stored cartons from moving down. At full

speed, the driveshaft rotates clockwise with an angular

velocity of 200 rpm. At the instant shown, determine the

acceleration of the rocker arm that rotates and lowers the

parts.

Fig. Q 3b)

14

CO2

L4

2.1.3

Unit 2

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME17

4a)

A shaft has 3 disturbing masses in the single plane with

radii of rotation r

1

, r

2

and r

3

and angular positions θ

1

, θ

2

and θ

3

. Discuss how the system will be balanced by

adding another balancing mass in the same plane.

8

CO5

L2

1.4.1

4b)

Determine the required input torque on the crank AB of

the reciprocating engine mechanism for the static

equilibrium when applied piston load is 1000 N. The

lengths of crank AB and connecting rod BC are 100 mm

and 300 mm respectively and crank has turned through

60° from I.D.C.

12

CO3

L3

2.4.1

5a)

Explain with neat sketch i) equilibrium of two force

member ii) equilibrium of three force member iii)

member with two forces and applied torque.

8

CO3

L2

1.2.1

5b)

An over drive for a vehicle consists of an epicyclic gear

train, as shown in Fig. Q5b), with compound planets B-

C. B has 15 teeth and meshes with an annulus A which

has 60 teeth. The planet C has 20 teeth and meshes with

the sun wheel D which is fixed. The annulus is keyed to

the propeller shaft Y which rotates at 740 rad/s. The

spider which carries the pins upon which the planets

revolve, is driven directly from main gear box by shaft

X, this shaft being relatively free to rotate with respect

to wheel D. Find the speed of shaft X, when all the teeth

have the same module. When the engine develops 130

kW, what is the holding torque on the wheel D? Assume

100 per cent efficiency throughout.

Fig Q 5b) Epicyclic gear train

12

CO4

L4

2.1.3

6a)

The pinion on the lay shaft drives gear on the main shaft

of automobile gear box. The contact between pair of in

volute teeth begins at one point and ends at other point.

Obtain an expression for path of contact between pair of

involute teeth.

8

CO4

L3

1.3.1

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME18

6b)

The A, B, C & D are four masses carried by a rotating

shaft at radius100, 125, 200 & 150 mm respectively.

The planes in which masses revolve are spaced 600 mm

apart & masses B, C & D are 10, 5 and 4 kg respectively.

Find the required mass A & relative angular positions of

the four masses to keep the shaft in the dynamic balance.

12

CO5

L3

2.4.1

Unit 3

7a)

In a single cylinder automotive engine spherical

follower is operated by a disc cam. If the follower moves

with simple harmonic motion then obtain an expression

for velocity and acceleration during its out and return

strokes.

8

CO6

L2

1.3.1

7b)

Design a cam to raise a valve with simple harmonic

motion through 50 mm in 1/3 of a revolution, keep if

fully raised through 1/12 revolution and to lower it with

harmonic motion in 1/6 revolution. The valve remains

closed during the rest of the revolution. The diameter of

the roller is 20 mm and the minimum radius of the cam

is 25 mm. The diameter of the camshaft is 25 mm. The

axis of the valve rod passes through the axis of the

camshaft. If the camshaft rotates at uniform speed of

100 rpm, find the maximum velocity and acceleration of

a valve during raising and lowering.

12

CO6

L3

2.1.2

8a)

Discuss with a neat sketch the axis of spin, axis of

couple, axis of precession and precessional angular

motion by considering the disc is spinning about X-axis.

Obtain the expression for precessional angular motion.

8

CO7

L2

1.2.1

8b)

The turbine rotor of a ship has a mass of 3500 kg. It has

a radius of gyration of 0.45 m and a speed of 3000 rpm

clockwise when looking from stern. Determine the

gyroscopic couple and its effect upon the ship: i) when

the ship is steering to the left on a curve of 100 m radius

at a speed of 36 km/h ii) when the ship is pitching in a

simple harmonic motion, the bow falling with its

maximum velocity. The period of pitching is 40 seconds

and the total angular displacement between the two

extreme positions of pitching is 12 degrees.

12

CO7

L3

1.2.1

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME19

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 – Analysing, 5 –

Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

35

49

16

Bloom's Level wise Marks

Distribution

Level 2

Level 3

Level 4

28

32

20 20 20 20 20

0

5

10

15

20

25

30

35

co1 co2 co3 co4 co5 co6 co7

Course Outcome wise Marks

Distribution

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME20

Course Name: Mechanical Vibrations

Course Outcomes (CO):

1. Determine the natural frequency of undamped free vibrations of single degree of freedom

systems by formulating mathematical model of physical systems.

2. Analyse the response of damped systems for different amount of damping and compute the

natural frequency of damped free vibration of mechanical systems.

3. Solve a problem related to whirling of shaft with rotor having some eccentricity.

4. Investigate the response of vibrating systems under forced harmonic excitations and explain the

effect of magnification factor, vibration isolation and transmissibility on vibrating system.

5. Evaluate the natural frequencies and mode shapes of two degrees of freedom vibration systems

and design vibration absorbers.

6. Determine the natural frequencies and mode shapes for multi-degree of freedom vibrating

systems.

7. Explain vibration analysis techniques and noise measuring techniques to diagnose faults in

machinery.

Model Question Paper

Total Duration (H:M): 3:00

Course: Mechanical Vibrations

Maximum Marks: 100

Note: i ) Answer any two full questions for Unit-1, any two full questions from Unit-II and any one full

question from Unit-III

Q.

No.

Questions

Marks

CO

BL

PI

Unit I

1 a)

An inverted pendulum as shown in Fig. Q 1(a) is pivoted at point O.

Assume small oscillations and neglect the mass of the rod. Obtain the

condition for the system to vibrate.

Develop 1 and 2 dof mathematical model of a car

Fig.Q1(a)

10

CO1

L3

2.1.3

1 b)

A gun barrel shown in Fig. Q 1(b) having mass 560 kg is designed with

the following data. Initial recoil velocity of 36 m/s and recoil distance on

firing 1.5m. Determine i) Spring constant ii) Critical damping coefficient

10

CO2

L3

2.1.3

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME21

of the dashpot which is engaged at the end of the recoil stoke. iii) Time

required for the barrel to return to a position of 0.12 m from its initial

position.

Fig.Q1(b)

2 a)

A cylinder of mass ‘m’ and radius ‘r’ rolls without slipping on a

cylindrical surface of radius R as shown in Fig. Q 2(a). Find the natural

frequency for small vibrations.

Fig.Q2(a)

10

CO1

L3

2.1.3

2 b)

A rotor of mass 4 kg is mounted midway between bearings which may

be assumed to be simple supports. The bearing span is 480 mm. The

shaft is of 9 mm diameter and is horizontal. The center of gravity of the

disc is displaced 3 mm away from the geometric center of rotor. The

equivalent viscous damping at the center of the disc and shaft may be

assumed as 49 N-S/m. The shaft rotates at 760 rpm. Take E=

2x10

11

N/m

2

. Determine

i) The critical speed of the shaft ii) Deflection of the shaft

iii) Dynamic load on the bearings iv) The maximum stress in the shaft.

v) Identify the parameters to reduce the stress in the shaft. Use any one

parameter and reduce the stress to its 50%.

10

CO3

L4

2.1.3

3 a)

Explain any four instruments used for measuring, assessing and

analyzing the noise output of machines.

08

CO7

L2

1.4.1

3 b)

A railroad car of mass 2,000 kg traveling at a velocity 10 m/s is stopped

at the end of the tracks by a spring-damper system, as shown in Fig.

Q3(b). The stiffness of each spring (K/2) is 40 N/mm and the damping

constant is 20N-s/mm. Determine i) Undamped and damped natural

frequency ii) Damping factor iii) The maximum displacement of the

car after engaging the springs and damper.

12

CO2

L4

2.1.2

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME22

Fig.Q3(b)

Unit II

4 a)

An automobile trailer that can vibrate in the vertical direction while

traveling over a rough road is modeled as shown in Fig. Q 4(a). It has a

vertical natural frequency of 100 cpm. It is driven along a road whose

elevation varies approximately by a sine wave of amplitude 50 mm. The

distance along the road between the peaks is 30 m. The damping ratio of

shock absorbers is 0.2. Determine the amplitude of vibration of the car

at a speed of 50 km/hr. Suggest possible methods of improving the

design for a more comfortable ride of the passengers.

Fig. Q 4(a)

10

CO4

L4

2.1.3

4 b)

Determine the two natural frequencies for small oscillations of the

pendulum shown in Fig. Q 4(b). Assume the rods are mass less and rigid.

Take K = 1 kN/m, L = 0.75 m, a = 0.4 m, m

1

= 3 kg, m

2

= 5 kg.

Fig. Q 4(b)

10

CO5

L3

2.1.2

5 a)

A machine of mass 150 kg supported on springs of total stiffness 1050

kN/m is modelled as shown in Fig. Q 5(a). It has an excitation force of

525 N at a speed of 6000 rpm. The damping factor of the system is 0.3.

Determine, i) The amplitude caused by the unbalance and its phase angle

ii) The transmissibility iii) The actual force transmitted and its phase

angle.

10

CO4

L3

3.1.6

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME23

Fig. Q 5(a)

5 b)

Model the car shown in Fig. Q 5(b) and determine the pitch (angular

motion) and bounce (up-and-down linear motion) frequencies and the

location of oscillation centers (nodes) with the following data. Mass (m)

= 1000 kg, radius of gyration (r) = 0.9 m, distance between front axle and

C.G. (l

1

) = 1.0 m, distance between rear axle and C.G. (l

2

) = 1.5 m, front

spring stiffness (k

f

) = 18 kN/m, rear spring stiffness (k

r

) = 22 kN/m.

Fig. Q 5(b)

10

CO5

L3

2.3.1

6 a)

A machine weighing 750 N is mounted on springs of 1200 kN/m stiffness

with damping factor of 0.2. A piston within the machine weighing 20 N

has a reciprocating motion with a stroke of 0.075 m and a speed of 3000

rpm. Assume the motion of the piston to be harmonic. Determine,

i) Amplitude of motion of the machine and its phase angle w.r.t. the

exciting force. ii) The transmissibility, the force transmitted to the

foundation and its phase angle w.r.t. the exciting force. iii) Has the

vibration isolation achieved, if so how? iv) Explain the effect of

increasing the operating speed of the system on isolation.

08

CO4

L4

2.1.3

6 b)

The vibration absorber is shown in Fig. Q 6(b). Show that amplitude of

vibration for the main system is given by















































































A reciprocating machine weighing 25 kg running at 6000 rpm after

installation has natural frequency very close to the forcing frequency of

vibrating system. Design dynamic absorber of the nearest frequency of

the system which is to be at least 20% from the excitation frequency.

12

CO5

L3

2.1.3

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME24

Fig. Q 6(b)

Unit III

7 a)

Determine the fundamental natural frequency for the triple pendulum

shown in Fig. Q 7(a) using matrix iteration method. Take a

11

= a

12

=a

13

= L/3mg, a

22

= a

23

= 5L/6mg and a

33

= 11 L/6mg.

Fig. Q 7(a)

10

CO6

L3

2.1.3

7 b)

Find the fundamental natural frequency of transverse vibration for the

system shown in Fig. Q 7(b) using Rayleigh’s method. Take m

1

=80 kg,

m

2

= 40 kg, x=0.25m, L=0.4 m, E=200 GPa and I =4x10

-7

m

4

.

Fig. Q 7(b)

10

CO6

L3

2.3.1

8 a)

Explain in detail the procedure of experimental modal analysis with

necessary hardware components.

10

CO7

L2

1.4.1

8 b)

Explain with sketch seismic instruments.

It is desired to measure the maximum acceleration of a machine part

which vibrates violently with a frequency of 700 cpm. Accelerometer

attached to it has a mass of 0.05 kg and spring constant of 1800 N/m.

Total travel of the accelerometer indicator is 8.2 mm. Determine the

maximum amplitude and maximum acceleration of the vibrating part.

10

CO7

L2

1.4.1

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME25

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 – Analysing, 5 –

Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

20

22

10

28

32

20

28

0

10

20

30

40

CO 1 CO 2 CO 3 CO 4 CO 5 CO 6 CO 7

Course Outcome wise

Marks Distribution

18

57

25

Bloom's Level wise

Marks Distribution

Level 2

Level 3

Level 4

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME26

Course Name: Mechanics of Materials

Course Outcomes (CO):

1. Analyze the state of internal effects caused by external loads acting on real bodies that

undergoes deformation (stress & strain).

2. Determine the strength and characteristics of materials and understand the design

uncertainties involved in design problem.

3. Compute the deformation of variety of structural members and design components subjected

to axial loading.

4. Analyze Torsional stress and angle of twist in circular shafts used for power transformation.

5. Draw shear and moment diagrams of simple beams subjected to various loading conditions.

6. Apply the flexural formula to simple structures to calculate the bending stress.

7. Determine the shear stresses produced by non uniform bending.

8. Compute deflection of beams.

Model Question Paper

Total Duration (H:M):3:00

Course :Mechanics of Materials

Maximum Marks :100

Q. No.

Questions

Marks

CO

BL

PI

1a

Two solid cylindrical rods (1) and (2) are joined together at flange B

and loaded, as shown in Figure Q.1a. The diameter of rod (1) is 1.75

in. and the diameter of rod (2) is 2.50 in. Determine the normal

stresses in rods (1) and (2).

Figure Q.1a

10

CO1

L3

1.3.1

1b

The five-bolt connection shown in Figure Q.1b must support an

applied load of P = 265 kN. If the average shear stress in the bolts must

be limited to 120 MPa, determine the minimum bolt diameter that

may be used for this connection.

05

CO1

L3

1.3.1

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME27

Figure Q.1b

1c

State the Hook's law. Neatly draw the Stress-strain diagram for Steel

indicating all silent points and zones on it.

05

CO2

L2

1.3.1

2a

At an axial load of 22 kN, a 45-mm-wide × 15-mm-thick polyimide

polymer bar elongates 3.0 mm while the bar width contracts 0.25 mm.

The bar is 200 mm long. At the 22-kN load, the stress in the polymer

bar is less than its proportional limit. Determine: (a) the modulus of

elasticity, (b) Poisson’s ratio, (c) the change in the bar thickness

10

CO2

L3

1.3.1

2b

A solid circular rod with a diameter of d = 16 mm is shown in Figure

Q.2b. The rod is made of an aluminum alloy that has an elastic

modulus of E = 72 GPa and Poisson’s ratio of = 0.33. When

subjected to the axial load P, the diameter of the rod decreases by

0.024 mm. Determine the magnitude of load P

Figure Q.2b

10

CO2

L3

1.3.1

3a

With standard notations derive the expression for deformation of

axially loaded bars of uniform cross-section

10

CO3

L3

1.3.1

3b

Aluminum [E = 70 GPa] member ABC supports a load of 28 kN, as

shown in Figure Q.3b. Determine:

(a) the value of load P such that the deflection of joint C is zero.

(b) the corresponding deflection of joint B.

Figure Q.3b

10

CO3

L3

1.3.1

4a

A solid steel [G = 80 GPa] shaft of variable diameter is subjected to the

torques shown in Figure Q.4a. The diameter of the shaft in segments

(1) and (3) is 50 mm, and the diameter of the shaft in segment (2) is

80 mm. The bearings shown allow the shaft to turn freely. Determine

the maximum shear stress in the compound shaft.

10

CO4

L3

1.3.1

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME28

Figure Q.4a

4b

A tubular steel [G = 80 GPa] shaft is being designed to transmit 150

kW at 30 Hz. The maximum shear stress in the shaft must not exceed

80 MPa and the angle of twist is not to exceed 6° in a 4-m length.

Determine the minimum permissible outside diameter if the ratio of

the inside diameter to the outside diameter is 0.80.

10

CO4

L3

1.3.1

5a

For the simply supported beam subjected to the loading shown in

figure Q. 5a,

(a) Derive equations for the shear force V and the bending moment

M for any location in the beam. (Place the origin at point A.)

(b) Plot the shear-force and bending-moment diagrams for the beam

using the derived functions.

(c) Report the maximum bending moment and its location.

Figure Q. 5a

10

CO5

L3

1.3.1

5b

Use the graphical method to construct the shear-force and bending-

moment diagrams for the beam shown in figure Q.5b . Label all

significant points on each diagram and identify the maximum

moments along with their respective locations. Clearly differentiate

straight-line and curved portions of the diagrams.

Figure Q.5b

10

CO5

L3

1.3.1

6a

A beam having a tee-shaped cross section is subjected to equal 12

kN-m bending moments, as shown in Figure Q.6a. The cross-sectional

10

CO6

L3

1.3.1

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME29

dimensions of the beam are shown in Figure Q.6b.Determine: (a) the

centroid location, the moment of inertia about the z axis.

(b) the maximum bending stress produced in the cross section. State

whether the stress is tension or compression.

Figure Q.6a Figure Q.6b

6b

Derive the flexural formula for a beam subjected to pure bending.

10

CO6

L2

1.3.1

7a

A 14-ft long simply supported timber beam carries a 6-kip

concentrated load at mid span, as shown in Figure Q.7a. The cross-

sectional dimensions of the timber are shown in Figure Q.7b.

(a) At section a–a, determine the magnitude of the shear stress in the

beam at point H.

(b) Determine the maximum horizontal shear stress that occurs in the

beam at any location within the 14-ft span length.

Figure Q.7a.

Figure Q.7b.

10

CO7

L3

1.3.1

7b

For the following problems, a beam segment subjected to internal

bending moments at sections A and B is shown along with a sketch of

the cross-sectional dimensions. Determine

(a) the resultant forces acting in the x direction on the specified area

at sections A and B and show these resultant forces on the sketch.

10

CO7

L3

1.3.1

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME30

(b) Is the specified area in equilibrium with respect to forces acting in

the x direction? If not, determine the horizontal force required to

satisfy equilibrium for the specified area and show the location and

direction of this force on the sketch

8a

For the loading shown in Figure Q. 8a, use the double-integration

method to determine (a) the equation of the elastic curve for the

cantilever beam, (b) the deflection at the free end. Assume that EI is

constant for each beam.

Figure Q. 8a

10

CO8

L3

1.3.1

8b

For the beam and loading shown in Figure Q.8b, use discontinuity

functions to compute the deflection of the beam at D. Assume a

constant value of EI = 1,750 kip-ft

2

for the beam.

Figure Q.8b

10

CO8

L3

1.3.1

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME31

BL – Bloom’s Taxonomy Levels (1- Remembering, 2- Understanding, 3 – Applying, 4 – Analysing, 5 –

Evaluating, 6 - Creating)

CO – Course Outcomes

PO – Program Outcomes; PI Code – Performance Indicator Code

Bloom's Level wise Marks Distribution

Level 2 Level 3

0

0.5

1

1.5

2

2.5

3

3.5

CO1 CO2 CO3 CO4 CO5 CO6 CO7 CO8

Course outcome wise Marks Distribution

All India Council for Technical Education

Model Question Paper

Mechanical Engineering

ME32