EKT 2 2015 Question Papers With Answer Keys (Official)

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EKT is also known as Engineering Knowledge Test which is conducted by the Indian air force twice every year along with AFCAT exam to select candidates for IAF technical branch. EKT 2 2015 written exam was conducted by IAF on 13th Sep 2015. Candidates who are waiting for the original question papers of EKT 2/2015 and answer keys can download it from below. You can find EKT 2/2015 question papers with answer keys for all sets i.e. Set E, Set F, Set G, Set H, Set J and Set K. EKT question papers from 2015 are of EKT Mechanical stream, EKT Computer Science Steam and EKT Electrical and Electronics question paper.

EKT 2/2015 Mechanical Question Paper

ENGINEERING KNOWLEDGE TEST (EKT) MECHANICAL STREAM

Table of Contents

Q1. Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consulting others. The probability that all the three apply for the same house is

(a) 2/9
(b) 1/9
(c) 8/9
(d) 7/9

Q2. If the area of the square is increased by 69% the side of the square increases by

(a) 13%
(b) 30%
(c) 39%
(d) 130%

Q3. A can solve 90% of the problems given in a book and B can solve 70%. What is the probability that at least one of them will solve a problem, selected at random from the book?

(a) 0.16
(b) 0.63
(c) 0.97
(d) 0.20

Q4. An unbiased die with faces marked 1, 2, 3, 4, 5 and 6 is rolled four times. Out of four face values obtained, the probability that the minimum face value is not less than 2 and the maximum face value is not greater than 5 is

(a) 16/81
(b) 1/81
(c) 80/81
(d) 65/81

Q5. The projection of a vector on another vector is

(a) scalar
(b) vector
(c) neither vector not scalar
(d) either scalar or vector

Q6. During the execution of a CNC part program block NO20 GO2 X45.0 Y25.0 R5.0 the type of tool motion will be

(a) circular Interpolation — clockwise
(b) circular Interpolation — counter-clockwise
(c) linear Interpolation
(d) rapid feed

EKT 2/2015 Computer Science Question Paper

ENGINEERING KNOWLEDGE TEST (EKT) COMPUTER SCIENCE STREAM

Q1. Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consulting others. The probability that all the three apply for the same house is

(a) 2/9
(b) 1/9
(c) 8/9
(d) 7/9

Q2. What is the next number in the series 1,3,11,19,37,_____

(a) 41
(b) 56
(c) 55
(d) None of the above

Q3. An unbiased die with faces marked 1, 2, 3, 4, 5 and 6 is rolled four times. Out of four face values obtained, the probability that the minimum face value is not less than 2 and the maximum face value is not greater than 5 is

(a) 16/81
(b) 1/81
(c) 80/81
(d) 65/81

Q4. The projection of a vector on another vector is

(a) scalar
(b) vector
(c) neither vector nor scalar
(d) either scalar or vector

Q5. The value of Sin θ +cosθ will be greatest when θ =_____.

(a) 45
(b) 30
(c) 90
(d) 60

Q6. How long is an IPv6 address? (a) 32 bits (b) 128 bytes (c) 64 bits (d) 128 bits Q7. What flavor of Network Address Translation can be used to have one IP address allow many users to connect to the global Internet?

(a) NAT
(b) Static
(c) Dynamic
(d) PAT

EKT 2/2015 Electrical and Electronics Question Paper

Q1. What is the next number in the series 1,3,11,19,37,_____

(a) 55
(b) 41
(c) 56
(d) None of the above

Q2. A car travelled 75% of way from town A to town B at an average speed of 50 mph. The car travelled at the average speed of S mph for remaining part of the trip. The average speed for the entire trip was 40 mph . What is S?

(a) 10
(b) 20
(c) 25
(d) 30

Q3. If the area of the square is increased by 69% the side of the square increases by

(a) 13%
(b) 30%
(c) 39%
(d) 130%

Q4. The value of Sin θ + Cosθ will be greatest when θ =

(a) 30
(b) 45
(c) 60
(d) 90

Q5. Out of the following pairs, choose the pair in which the physical quantities do not have identical dimension?

(a) Pressure and Young’s modules
(b) Planck’s constant and Angular momentum
(c) Impulse and moment of force
(d) Force and rate of change of linear Momentum

Q6. Out of the following, which one is least commonly emitted by radioactive substance?

(a) electrons
(b) electromagnetic radiations
(c) alpha particles
(d) neutrons

Q7. Sound produced at a point is heard by a person after 5 seconds, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum distances between the two persons?