Practice Test: Question Set - 18
1. The lower cylindrical portion of the piston which improves piston cooling performance is called
- (A) Piston
crown
- (B) Connecting
rod
- (C) Piston
pin boss
- (D) Piston
skirt
2. The most effective method of controlling S.I. engine exhaust emission is by
- (A) Recirculating
exhaust
- (B) Using
catalytic converter
- (C) Using
some additives in the fuel
- (D) None
of these
3. If clearance volume of I.C. engines is increased, the compression ratio will
- (A) Increase
- (B) Decrease
- (C) Remain
constant
- (D) Be doubled
4. The basic function of the suspension is to
- (A) Absorbs
vibration and impact forces from the road surface
- (B) Ensure that
the steering wheel can deliver a suitable amount of steering force
- (C) Ensure
that wheel alignment is not disturbed during driving
- (D) Automatically
correct the effects of over steering
5. Damper in an automobile is used to
- (A) Absorb the
energy
- (B) Dissipate
the energy
- (C) Release
the energy
- (D) Increase
the energy
6. The engine oil is stored in _________ when the engine is not running.
- (A) Oil pan
- (B) Cylinder
head
- (C) Oil pump
- (D) Separate
oil tank
7. The condition that results in large quantities of CO emission is
- (A) Insufficient
air during combustion
- (B) Insufficient
fuel during combustion
- (C) Low
temperature combustion
- (D) High
temperature combustion
8. The sequence order of events in a four stroke engine is
- (A) Suction
exhaust power compression
- (B) Suction
power compression exhaust
- (C) Suction
compression power exhaust
- (D) Exhaust
compression power suction
9. Which of the following is not a part of the chassis?
- (A) Wheels
- (B) Front axle
- (C) Steering
system
- (D) Seats
10. The camshaft of a four stroke Diesel engine running at 1000 rpm will run at
- (A) 500 rpm
- (B) 1000 rpm
- (C) 2000 rpm
- (D) 4000 rpm
11. What type of bearing is used for main bearings and connecting rod bearings?
- (A) Ball
bearings
- (B) Plain
bearings
- (C) Needle
roller bearing
- (D) Taper
roller bearing
12. Valve overlap is the number of degrees of camshaft rotation during which
- (A) Both
valves are closed
- (B) Both
valves are open
- (C) Both 'A' and
'B'
- (D) None of
these
13. The component that is responsible for converting the rotation of the steering wheel into lateral motion is the
- (A) Steering
wheel
- (B) Steering
shaft
- (C) Steering
gearbox
- (D) Tie rod
14. The crankcase dilution means
- (A) Dilution
of fuel in the crankcase
- (B) Dilution
of oil by water in the crankcase
- (C) Dilution
of lubrication oil by fuel in the crankcase
- (D) Dilution of
mixture passing through crankcase in two stroke engines
15. The main cause for the change in engine oil viscosity is
- (A) Humidity
- (B) Temperature
- (C) Vibration
- (D) Contamination
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