Practice Test: Question Set - 02
1. The brake warning light warns the driver of
- (A) Water
in the master cylinder
- (B) Air
in the hydraulic system
- (C) Failure
of the primary or secondary circuit of hydraulic system
- (D) Power
brake failure
2. The connecting rods are generally made of __________ shaped cross-section.
- (A) I
- (B) C
- (C) L
- (D) H
3. It is necessary to maintain the valve clearances as they
- (A) Reduce
the resistance to sliding that occurs between the cam and the tappet
- (B) Allow
for lengthening of the valves owing to the heat of combustion
- (C) Increase
the speed at which the valves move up and down
- (D) Make
the crankshaft turn smoothly
4. The characteristic that is enhanced by the honing of cylinder sleeves inner surface is
- (A) Cooling
efficiency
- (B) Resistance
to wear
- (C) Lubrication
performance
- (D) None
of these
5. If the air-fuel mixture ignites before the spark takes place at spark plug, the condition is called
- (A) Detonation
- (B) Ignition
- (C) Pre-ignition
- (D) Rumble
6. The instrument used to check specific gravity of acid in a battery is
- (A) Hydrometer
- (B) Hygrometer
- (C) Anemometer
- (D) Multimeter
7. The crankshaft of a typical inline four cylinder engine has ________ balance weights.
- (A) 12
- (B) 4
- (C) 16
- (D) 8
8. The condition that results in large quantities of HC emission is
- (A) High
temperature combustion
- (B) Incomplete
combustion
- (C) Low
temperature combustion
- (D) High
atmospheric temperature combustion
9. The engine oil viscosity is defined by ___________ ratings.
- (A) Automatic
transmission fluid (ATF)
- (B) Society
of automotive engineers (SAE)
- (C) Gross
vehicle weight (GVW)
- (D) American
petroleum institute (API)
10. The negative plates of a lead acid battery has
- (A) Lead
peroxide (PbO₂)
- (B) Spongy lead
(Pb)
- (C) Lead
sulphate (PbSO₄)
- (D) Sulphuric
acid (H₂SO₄)
11. The drive-shafts are connected to the differential and wheel hubs through universal joints because the universal joints
- (A) Absorb the
vibrations transferred from the surface of the road
- (B) Compensate
for variations in the relative positions of the differential and the wheels
which result from bumpy road surfaces or other similar driving conditions.
- (C) Absorb any
difference in speed between the left and right wheels when the vehicle is
turning
- (D) None
of the above
12. The octane rating of petrol commercially available is
- (A) 85-95
- (B) 95-100
- (C) 100-110
- (D) 110-125
13. The vehicle ride will be comfortable if
- (A) Unsprung
mass is kept minimum
- (B) Sprang
mass is kept minimum
- (C) Vehicle
mass is kept minimum
- (D) All of these
14. The auto ignition in a spark ignition engine means
- (A) Automatic
ignition of the charge at the end of compression
- (B) Ignition
induced by the passage of a spark
- (C) Ignition
of the charge before the passage of flame front
- (D) Ignition
induced to supplement the process of normal combustion
15. When the brake pedal free play is less than the specified value, then the
- (A) Brake
drags
- (B) Brake
fades
- (C) Vapour
locking occurs in the brake lines
- (D) Antilock
braking system malfunctions
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