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KTU Model Question Paper | KTU S1, S2, S3, S4 Previous Year Papers PDF

KTU Model Question Paper

KTU Model Question Paper year wise are available here. Candidates can obtain the KTU Previous Year Papers for S1, S2, S3, S4 in PDF Format though this web page.

Concerned individuals can hit on the below mentioned direct links to get the KTU Question Paper with Answers.


KTU Model Question Paper

KTU Model Question Paper PDF

For S2 and S1

EC100 Basics of Electrical Engineering PDF
100 Basics of Mechanical Engineering
Model Question Paper
Designing and Engineering BE102
Model Question Paper

For S3

Network Theory-Set 1 PDF
Network Theory-Set 2 PDF
Network Theory-Set 3 PDF
Network Theory-Set 4 PDF
Network Theory-Set 5 PDF

For S4

MA202 Question Bank PDF
HS200 Business Economics PDF

Other KTU Model Question Papers PDF:

Question Papers PDF
CE 306 Download
BCE Download
BEE Download
BLE Download
BME Download
Calculus Download
CHE Download
EM Download
ICE Download
ICH Download
ICP Download
IEE Download

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KTU Model Question Paper

KTU Previous Question and Answers:

Most Important Questions:

Question 1: Differentiate relays and contactors and write the applications of each.


Relay Contactor
Relatively smaller in size. Larger when compared to relays.
Used in circuits with lower ampacity. (Max 20A) Used in circuits with low and higher ampacity up to 12500A.
Mainly used in control and automation circuits, protection circuits and for switching small electronic circuits Used in the switching of motors, capacitors, lights etc.
Consists of at least two NO/NC contacts. Consists of minimum one set of three phase power contacts and in some cases additional auxiliary contacts are also provided.

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Question 2: Write any four applications of electronics in the field of defense.


  • Electronic circuits provide a means of secret communication between the headquarter and different units
  • RADAR that is Radio Detection and Ranging is the most important development in electronics field. With the help of radar, it is possible to detect and find the exact
    location of enemy aircraft, Radar and anti-craft guns can be linked by an automatic
    control system to make a complete unit
  • Circuit boards and sub-assemblies for military firing simulators (anti-tank)
  • Electrical distribution circuit boards for military helicopters

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Question 3: How does an Avalanche breakdown differ from Zener break down?


Zener break down Avalanche breakdown
1.This occurs at junctions, which being

heavily doped have narrow depletion


1. This occurs at junctions which being

lightly doped has wide depletion layers.

2. This breakdown voltage sets a very

strong electric field across this narrow


2. Here, electric field is not strong

enough to produce Zener breakdown.

3. Here, electric field is very strong to

rupture the covalent bonds thereby

generating electron hole pairs. So even

a small increase in reverse voltage is

capable of producing large number of

current carriers, i.e. why the junction

has a very low resistance. This leads to

Zener breakdown

3. Here, minority carriers collide with

semiconductor atoms in the depletion

region, which breaks the covalent

bonds and electron-hole pairs are

generated. Newly generated charge

carriers are accelerated by the electric

field, which results in more collision

and generates avalanche of charge

carriers. This results in avalanche


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Question 4: What is the working principle of SMPS?


SMPS means switch mode power supply. This works on the principle of switching regulation. The SMPS system is highly reliable, efficient, noiseless and compact because the switching is done at very high rate, in the order of several KHz to MHz.

Question 5: Describe the role of different capacitors in RC coupled amplifier.


  • Coupling capacitor CC is used to connect the output of first stage to the base, i.e. input of the second stage and this continues when more stages are connected. The coupling capacitor CC transmits AC signal but blocks DC.
  • This prevents DC interference between various stages and the shifting of operating point. The emitter bypass capacitor offers a low resistance path to the signal. Without this capacitor the voltage gain of each stage would be lost.

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More Questions with Answers:

Question 1: The ratio of the actual damping coefficient to the critical damping coefficient is called damping factor.

  1. Yes
  2. No

Answer: A

Question 2: When a body moves with simple harmonic motion, the product of its periodic time and frequency is equal to

  1. zero
  2. one
  3. π/2
  4. π

Answer: B

Question 3: In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decrement is equal to

  1. 2
  2. 4
  3. 6
  4. 8

Answer: C

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Question 4: For high speed engines, the cam follower should move with

  1. uniform velocity
  2. simple harmonic motion
  3. uniform acceleration and retardation
  4. cycloidal motion

Answer: D

Question 5: In a coupling rod of a locomotive, each of the four pairs is a __________ pair.

  1. sliding
  2. turning
  3. rolling
  4. screw

Answer: B

Question 6: The sliding pairs, turning pairs and screw pairs form lower pairs.

  1. True
  2. False

Answer: A

Question 7: When the two elements of a pair have a surface contact when relative motion takes place and the surface of one element slides over the surface of the other, the pair formed is known as a

  1. lower pair
  2. higher pair
  3. self-closed pair
  4. force-closed pair

Answer: A

Question 8: The static friction

  1. bears a constant ratio to the normal reaction between the two surfaces
  2. is independent of the area of contact, between the two surfaces
  3. always acts in a direction, opposite to that in which the body tends to move
  4. all of the above

Answer: D

Question 9: A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of

  1. 2 mm
  2. 22 mm
  3. 50 mm
  4. 0 mm

Answer: B

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Question 10: The swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke (θ) is equal to

  1. 90° and 180°
  2. 45° and 225°
  3. 180° and 270°
  4. 270° and 360°

Answer: B

Question 11: The behaviour of visco-elastic material is time dependent. This behaviour is common in __________ materials.

  1. non-crystalline solid
  2. crystalline
  3. rubberry
  4. non-crystalline organic polymeric.

Answer: D

Question 12: Coke oven regenerators are made of __________ bricks.

  1. fire clay
  2. silica
  3. low thermal conductivity
  4. high electrical conductivity

Answer: A

Question 13: Which of the following is universally employed as the low expansion metal in the bimetallic thermometer, which is an iron-nickel alloy containing 36% nickel and has very low co-efficient of expansion (l/20th of ordinary metals) ?

  1. Invar
  2. Constantan
  3. Chromel
  4. Alumel

Answer: A

Question 14: Shock resisting steels should possess high

  1. hardness
  2. toughness
  3. tensile strength
  4. wear resistance

Answer: B

Question 15: The purpose of nitriding the steel is to

  1. harden its surface.
  2. soften its surface.
  3. improve its reliability.
  4. none of these.

Answer: A

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Question 16: Constituents of stellite are

  1. zinc, copper and nickel.
  2. cobalt, chromium and tungsten.
  3. zinc, aluminium and nickel.
  4. nickel, cobalt and vanadium.

Answer: B

Question 17: Residual magnetism in steel for magnets is increased by the addition of

  1. nickel
  2. cobalt
  3. tungsten
  4. chromium

Answer: B

Question 18: Presence of nickel in steel improves its

  1. corrosion resistance.
  2. cutting ability.
  3. wear resistance.
  4. all (a), (b) and (c).

Answer: A

Question 19: Cementite is

  1. Fe3C chemically.
  2. a compound of carbon and iron.
  3. characterised by an orthorhombic crystal structure.
  4. all (a), (b) and (c).

Answer: D

Question 20: Acetylene gas holder is made of

  1. copper
  2. cast iron
  3. steel
  4. monel metal

Answer: C

KTU Study Materials:

  • Basic Electrical Useful Text: Kavya Sreekumar
  • Be102 Design And Engineering Study materials: Swathy Pramod (SIMAT)
  • Introduction to computing and problem solving PPT’s Prepared: SUKANYATHARA J (Asst. Professor)
  • Beer and Johnson, Vector Mechanics for Engineers – Statics and Dynamics Shared By Student X
  • Millman’s Integrated Electronics 2nd Edition E-book For KTU Shared By Student X
  • Engineering Mechanics: Statics and Dynamics By Hibbeler R.C.
  • An E Book For Introduction to Civil Engineering By Prof.Ramachandran V
  • Principles of Turbomachinery- William W Peng, John Wiley & Sons Free E-Book PDF Download
  • Mackenthun, K.M., Basic Concepts in Environmental Management Free ebook pdf download
  • Robert L. Boylested, Louis Nashelsky, Electronic Devices and Circuit Theory, Pearson Education Free ebook pdf download
  • David A Bell, Electronic Devices And Circuits Free ebook pdf Download
  • Satheesh Gopi, Basic Civil Engineering, Pearson Publishers Free E-book (PDF) Download
  • Engineering Graphics – J Benjamin, Pentex Publishers

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KTU Model Question Paper

Candidates who are planning to appear in Dr. A P J Abdul Kalam Technological University Exam and searching for KTU Model Question Paper in PDF Form are at correct path. KTU S1, S2, S3, S4 Previous Year Papers with solution helps to prepare better for upcoming university exams. So, candidates can download KTU Previous Year Papers from this web page.

Earlier, Dr. A P J Abdul Kalam Technological University was known by Kerala Technological University. Government of Kerala established this university and the purpose of this University is to manage, control and to provide direction in all aspects of technological as well as engineering education. The headquarters of this University is in Thiruvananthapuram.

Candidates who are studying in Dr. A P J Abdul Kalam Technological University can download KTU Model Question Paper for better preparation by hitting on the direct links that are provided in this web page.

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