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# Engineering Knowledge Test www.careerairforce.nic.in : Sample Question Paper

Organisation : Indian Air Force
Exam :Engineering Knowledge Test
Document Type : Sample Question Paper
Website : careerairforce.nic.in

## Engineering Knowledge Test (EKT) Sample Paper :

COMPUTER SCIENCE STREAM :
Instructions for Candidates :
Time Allotted
: 30 Minutes
1.Total number of Questions 50. Each Question is of three marks.
2.One mark will be deducted for every wrong answer.

Related / Similar Question Paper :
DRDO Military Aptitude Mock Test

3.Do not write or mark on Question Paper.
4.Question Paper to be returned before leaving the Exam Hall.

Q2. Each edge of a cube is increased by 50%. The percentage increase in the surface area is
(a) 50
(b) 125
(c) 150
(d) 300

Q3. The value of log 4 + log 5 – log 2 is
(a) 1
(b) 7
(c) 10
(d) 9/2

Q4. The probability of drawing an ace or a spade or both from a deck of cards is
(a) 4/52
(b) 13/52
(c) 1/52
(d) 16/52

Q6. Pressure is
(a) scalar
(b) vector
(c) pseudo vector
(d) Poynting vector

Q7. The force of attraction or repulsion between charges follows
(a) square law
(b) inverse square law
(c) both (a) and (b)
(d) none of (a) and (b)

Q8. The force experienced by a conductor of length L carrying current I placed parallel to the magnetic field of flux density B is
(a) BIL
(b) Zero
(c) HIL
(d) IL/B

Q9. A wave undergoes reflection from a rigid boundary. One of its characteristic parameters that changes is
(a) frequency
(b) phase
(c) velocity
(d) wavelength

Q10. The half-life period of a radioactive element is 140 days . After 560 days one gram of the element will reduce to
(a) 1/2 g
(b) 1/4 g
(c) 1/8 g
(d) 1/16 g

Q11. Which projection shows the object from angles in which the scales along each axis of object are equal
(a) auxiliary projection
(b) isometric projection
(c) orthographic projection
(d) objective projection

Q13. when o/p of a flip-flop is used as clock I/p for next flip-flop the counter is called
(a) ripple counter
(b) asynchronous counter
(c) both (a) and (b)
(d) synchronous counter

Q15. Which of the following is used as storage locations both in the ALU and the control section of a computer?
(a) accumulator
(b) register
(d) decoder

Q16. The Central Processing Unit (CPU)Consists of:
(a) Input, output and processing units
(b) Control unit, primary storage, and secondary storage
(c) Control unit, arithmetic-logic unit, and primary storage
(d) Control Unit, processing, primary storage

Q17. If some device requires urgent service, normal execution of programs may sometimes be pre-empted using
(a) an interrupt signal
(b) a request to memory modules
(c) DMA
(d) all of the above

Q18. The fan-out capability of a digital building block can be defined as
(a) the number of inputs that one output can transmit to
(b) the amount of cooling required for fanning the hear out
(c) the number of inputs that can transmit to one input
(d) that the unit can scan

Q19. In computer terminology a compiler means
(a) a person who computes source programs
(b) the same thing as a programmer
(c) key punch operator
(d) a program which translates source program into object program.

Q20. The ascending order of a data Hierarchy is :
(a) bit – bytes – field – record – file – database
(b) bit – bytes – record – field – file – database
(c) bytes – bit – field – record – file – database
(d) bytes – bit – record – field – file – database

Q21. The processes at the most detailed level of the data flow diagrams are called
(a) transform descriptions
(b) functional primitives
(c) data flows
(d) interfaces

Q22. A station in a network forwards incoming packets by placing them on its shortest output queue. What routing algorithm is being used?
(a) hot potato routing
(b) flooding
(c) static routing
(d) delta routing

Q23. The action of parsing the source program into the proper syntactic classes is known as
(a) syntax analysis
(b) lexical analysis
(c) interpretation analysis
(d) general syntax analysis