Practice Test: Question Set - 17
1. An imbalance wheel during vehicle operation
- (A) Makes
large noise when its heavy point hits the road surface
- (B) Deflects
in the vehicle's longitudinal direction
- (C) Bounces
vertically or deflects from side to side (as seen from front or rear)
- (D) Creates
a standing wave
2. The temperature at which tyre inflation pressure should be checked is
- (A) 20°C
- (B) 25°C
- (C) 35°C
- (D) Ambient
temperature
3. The parking brakes employed in vehicles are operated
- (A) Mechanically
- (B) Hydraulically
- (C) Pneumatically
- (D) None of
these
4. In vehicles with tilt steering, the steering column is pivoted in
- (A) Upper
bracket
- (B) Lower
bracket
- (C) Tilt bracket
- (D) Steering
yoke joint
5. One effect of detonation is
- (A) Delay
in ignition
- (B) Loss
of power
- (C) Overheating
of engine
- (D) Overcooling
of engine
6. In case of a Diesel car, the pressure at the end of compression is of the order of
- (A) 15 bar
- (B) 25 bar
- (C) 35 bar
- (D) 45 bar
7. The effect of vapour locking on the brake performance is that the
- (A) Brakes
function more effectively
- (B) Brakes
fail completely
- (C) Brake
operation is delayed after depression of the brake pedal
- (D) Vapour
locking has no effect on brake performance
8. The connecting rod is attached to the piston by the
- (A) Cap bolt
- (B) Piston
pin
- (C) Cap
roller bearing
- (D) Rod
cap
9. Clutch facings are usually attached to the plate by
- (A) Steel rivets
- (B) Brass
rivets
- (C) Aluminium
screws
- (D) Steel
screws
10. In a Diesel engine, the function of a fuel injector is to
- (A) Mix the fuel
and air
- (B) Ignite
the air-fuel mixture
- (C) Provide
flame front for ignition
- (D) Spray
atomized fuel in the cylinder
11. In a four speed four stroke Diesel engine, the intake valve
- (A) Opens at
T.D.C. and closes at B.D.C.
- (B) Opens at 20°
before T.D.C. and closes at 35° after B.D.C.
- (C) Opens at 10°
after T.D.C. and closes at 20° before B.D.C.
- (D) None
of the above
12. When the top of the wheel is tilted outward, then it is called
- (A) Positive
camber
- (B) Negative
camber
- (C) Positive
caster
- (D) Negative
caster
13. The purpose of transmission in an automobile is
- (A) To vary the
speed of automobile
- (B) To
vary the torque at the wheels
- (C) To
vary the power of automobile
- (D) None
of these
14. A basic difference between the spark ignition engine and the Diesel engine is that the
- (A) Diesel
engine compresses air alone instead of an air-fuel mixture
- (B) Air
temperature ignites the fuel in the Diesel engine
- (C) Fuel is
sprayed into the combustion chamber in the Diesel engine as the piston nears
T.D.C. on the compression stroke
- (D) All
of the above
15. The cam shaft in an engine is always mounted
- (A) Parallel
to the crankshaft
- (B) Perpendicular
to the crankshaft
- (C) Inclined
to the crankshaft
- (D) None
of these
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