Solved paper for EKT

Please provide me question paper for Indian air force EKT Engineering Knowledge Test soon ?

[Raman Vij]

Here I am giving you question paper for Indian air force EKT Engineering Knowledge Test in a file attached with it so you can get it easily.

EKT paper

Part A: General Engineering

1. The probability of hitting a target from one gun 9/10, from another gun is 7/10. If both gun are fired at the same time, the probability of hitting the target is
(A) 2/20
(B) 63/100
(C) 16/20
(D) 63/20
2. If the three vectors a, b and c are coplanar , then the missed product a x b. c is
(A) Zero
(B) Non-Zero
(C) Unity
(D) Non of these
6. When a body hits an obstacle, the force with which it hits the obstacle depends upon its
(A) average velocity
(B) velocity at the instant of collision
(C) initial velocity
(D) all of these
7. The wavelength of visible light is of the order of
(A) 1µm
(B) 100 µm
(C) 1mm
(D) 1 Å
8. Whenever a source of sound moves towards an observer
(A) the frequency heard by the observer is less than that of the source
(B) the frequency heard by the observer is greater than that of the source
(C) the frequency heard by the observer is unchanged
(D) the wavelength of sound heard is greater than that of the sound emitted
9. Moving electric charges will interact with
(A) electric field only
(B) magnetic field only
(C) both of these
(D) none of these
10. Gamma radiation is most similar to
(A) sound waves (B) X-ray
(C) Alpha particles (D) neutrons
11. The fundamental particle responsible for keeping the nucleus together is
(A) meson
(B) anti proton
(C) positron
(D) muon
12. Air contains 21% oxygen by volume and the rest nitrogen. If the barometer pressure is 740 mm of Hg the partial pressure of oxygen is close to
(A) 155 mm of Hg
(B) 310 mm of Hg
(C) 465 mm of Hg
(D) 162 mm of Hg
13. In the electrolytic cell
(A) electrical energy is converted into chemical energy
(B) chemical energy is converted into electrical energy
(C) mechanical energy is converted into potential energy
(D) potential energy is converted into kinetic energy
14. The force required to maintain a body at constant speed in free space is equal to
(A) the mass of the body
(B) zero
(C) the weight of the body
(D) the force required to stop it
15. If the length of a spring is halved, the spring constant becomes
(A) half
(B) 1/4th
(C) double
(D) four times
16. The coefficient of static friction depends on
(A) the material of the bodies in contact
(B) the quality of surface finish of the bodies
(C) the presence of foreign matter between the surface
(D) all of these
17. The units of angular impulse in SI system are
(A) Nms
(B) Ns
(C) Nm/s
(D) Ns/m
19. Stainless steel contains iron and
(A) Chromium and nickel
(B) Chromium and carbon
(C) Nickel and carbon
(D) Chromium and manganese
20. The property of material by which it offers resistance to scratching or indentation is called
(A) Brittleness
(B) Hardness
(C) Toughness
(D) Resilience
21. The failure of a material due to repeated stressing is known as
(A) Creep
(B) Fracture
(C) Fatigue
(D) Brittle Fracture
22. The electric device which blocks DC but allows AC is called
(A) Capacitor
(B) Inductor
(C) Amplifier
(D) Transducer
23. When a charge is moved from one point to another in an electric field, the work done is
(A) independent of the path
(B) zero along the direction of the field
(C) measured in Joules per metre
(D) measure in Volt per metre
24. A capacitor with lowest leakage is
(A) Paper
(B) Ceramic
(C) Polyester (D) Mica
25. A zener diode operates
(A) In an extremely high forward bias
(B) In an extremely low reverse bias
(C) In an extremely low forward bias
(D) In a reverse bias higher than laid down voltage
26. The specific gravity of a lead acid cell is often used as a measure of its
(A) Rate of discharge
(B) Operating temperature
(C) State of charge
(D) Life expectancy
27. An uniformly distributed load is one which
(A) Acts at a point on a beam
(B) Spreads uniformly over the whole length of a beam
(C) Varies uniformly over the whole length of a beam
(D) loads the beam from one end only
28. A steam engine device which keeps the speed of the engine, all loads, constant is known as
(A) Flywheel
(B) Eccentric
(C) Connecting rod
(D) Governor
29. The refrigerant hiving the lowest freezing point is
(A) Ammonia
(B) Carbon dioxide
(C) Freon – 11
(D) Freon – 22
30. Heat and work are
(A) Path functions
(B) Properties of a substance
(C) Point functions
(D) Absolute units

Will you provide me the sample paper for Electronics and Communication student for Engineering Knowledge Test (EKT) as I am looking for the same ?

[Quick Sam]

As you want I am here providing you sample paper of the Electronics and Communication student for Engineering Knowledge Test (EKT) .


Sample paper:
EKT ECE sample paper
1. In a communication system, noise is most likely to get into the system
(A) At the transmitter
(B) In the channel
(C) In the information source
(D) At the destination

2. When modulation frequency is doubled, the modulation index is halved, and the modulating voltage remains constant, the modulation system is
(A) Amplitude modulation
(B) Phase modulation
(C) Frequency modulation
(D) Angle modulation

3. Impedance inversion may be obtained with
(A) A short – circuited stub
(B) An open – circuited stub
(C) A quarter – wave line
(D) A half – wave line

4. HIGH frequency waves are
(A) Observed by the F2 layer
(B) Reflected by D layer
(C) Capable of use for long-distance communication on the moon
(D) Affected by the solar cycle

5. Which one of the following terms does not apply to the Yagi-uda array?
(A) Good band width
(B) Parasitic elements
(C) Folded dipole
(D) High gain

6. A duplexer is used
(A) To couple two different antennae to a transmitter without mutual interference
(B) To allow one antenna to be used for reception or transmission without mutual interference
(C) To prevent interference between two antennae when they are connected to receiver
(D) To increase the speed of the pulses in the pulsed radar

7. Indicate which of the following system is digital
(A) Pulse – Position modulation
(B) Pulse – Code modulation
(C) Pulse – Width modulation
(D) Pulse – Frequency modulation

8. A forward error correcting code corrects errors only doubt
(A) Requiring partial retransmission of the signal
(B) Requiring retransmission of entire signal
(C) Using parity to correct to errors in all cases
(D) Requiring no part of the signal to be transmitted

9. A typical signal strength received from a geosynchronous communication satellite is of the order of doubt
(A) A few milli watts
(B) Kilo watts
(C) Watts
(D) Few pico watts

10. Telephone traffic is measured doubt
(A) With echo cancellers
(B) By the relative congestion
(C) In terms of the grade of service
(D) In erlangs

11. Positive logic in a logic circuit is one in which doubt
(A) Logic 0 and 1 are represented by 0 and positive voltage respectively
(B) Logic 0 and 1 are represented by negative and positive voltages respectively
(C) Logic 0 voltage level in higher than logic 1 voltage level
(D) Logic 0 voltage level is lower than logic 1 voltage level

12. A half-adder can be made from
(A) Two NAND gates
(B) A NOT gate and an OR gate
(C) An AND gate and an OR gate
(D) An AND gate and an X-OR gate

13. Which of the following devices has its characteristics very close to that of an ideal current source?doubt
(A) Field effect transistor
(B) Transistor in common bas mode
(C) Zener diode
(D) MOSFET

14. The main use of a common base transistor amplifier is
(A) As voltage amplifier-> CE
(B) Current amplifier (CB for HF applications)
(C) For matching a high source impedance to a low load impedance ->CC
(D) For rectification of a.c. signal -> any confi but generally CE

15. A class-B amplifier is biased
(A) Just at cut-off
(B) Nearly twice cut-off
(C) At mid point of load line
(D) so that IB equals jut IC

16. If the peak transmitted power in a radar system is increased by a factor of 16, the maximum range will be increased by a factor of
(A) 2
(B) 4
(C) 8
(D) 16

17. A high PRF will (indicate the false statement) doubt
(A) Make the returned echoes easier to distinguish from noise
(B) Make target tracking easier with conical scanning
(C) Increase the maximum range
(D) Have no effect of the range resolution

18. A solution to the “blind speed” problem in a radar system is to
(A) Change the Doppler frequency
(B) Vary the PRF
(C) Use mono pulse
(D) Use MTI

19. The number of active picture elements in a television image depends on
(A) Fly back time
(B) CRT screen size
(C) Received band width
(D) FB ratio of receiver antenna

20. In a color TV, the three primary colors are
(A) Red, orange and blue
(B) Red, blue and green
(C) Red, green and yellow
(D) Red, orange and green