Modal Question Paper for EKT General Engineering

MODEL QUESTION PAPER
ENGINEERING KNOWLEDGE TEST (EKT)
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
3. Limit sin x is
x→0 x
(A) not defined (B) 1
(c) zero (D) -1
4. The Laplace transform of sin23t is
(A) 18 (B) 18
S(S2+36) S2(S+36)
(C) 18 (B) 18
(S+36) (S+36)(S+4)
5. The function
x2 for x< 3
f(x)
2x+3 for x>3
(A) continuous over the entire number scale
(B) continuous at x=3 but discontinuous at
all other points
(C) discontinuous at x=3 but continuous at
all other points
(D) discontinuous everywhere
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
18. A particle is projected with a velocity
√4gR
3 ½ ½
(A) gR (B) gR
2 3
½ ½
(C) gR (D) 2gR
3
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