Practice Test: Question Set - 09
1. The firing order for an opposed four cylinder l.C. engine is
- (A) 1-2-3-4
- (B) 1-3-4-2
- (C) 1-4-3-2
- (D) 1-3-2-4
2. The function of positive crankcase ventilation (PCV) system is that it
- (A) Mixes fuel
with air
- (B) Promotes
combustion by creating a swirling movement in the air-fuel mixture
- (C) Returns
blow by gases from the crankcase to the intake system
- (D) Feeds blow by
gases to the exhaust manifold
3. The two kinds of piston rings are
- (A) Compression
and oil control rings
- (B) Compression
and sliding seal rings
- (C) Oil
scrapper and oil control rings
- (D) Pressure
and sealing rings
4. The sequence in which the force is transmitted through a brake system when the brake pedal is depressed is
- (A) Brake
pedal, master cylinder, brake lines, vacuum servo mechanism, brake pads
- (B) Brake
pedal, vacuum servo mechanism, master cylinder, brake lines, brake pads
- (C) Brake
pedal, master cylinder, vacuum servo mechanism, brake lines, brake pads
- (D) Brake
pedal, brake lines, vacuum servo mechanism, master cylinder, brake pads
5. The basic purpose of a four wheel drive (4WD) system is that it
- (A) Delivers
improved cornering on dry road surfaces
- (B) Eliminates
the need of snow tyres, tyre chains, etc.
- (C) Ensures
effective transmission of engine torque to all four wheels, even on slippery
road surfaces
- (D) Ensures
that effective braking can be performed, even on slippery surfaces
6. The heat transfer from coolant to air in the radiator of an automobile engine takes place by
- (A) Radiation
only
- (B) Convention
only
- (C) Convection
and radiation
- (D) Conduction,
convection and radiation
7. The purpose of a thermostat in an engine cooling system is to
- (A) Prevent
the coolant from boiling
- (B) Allow
the engine to warm up quickly
- (C) Indicate
the coolant temperature
- (D) Pressurise
the system to raise the boiling point
8. The basic characteristics of a brake fluid is
- (A) A high
boiling point
- (B) Low
viscosity
- (C) Compatibility
with rubber and metal parts
- (D) All
of these
9. The gradient resistance to a vehicle having a mass of 980 kg moving on an incline of 10° is
- (A) 1.6694 N
- (B) 16.694 N
- (C) 166.94 N
- (D) 1669.4 N
10. The reconditioning process used to give cylinder bore surfaces a crosshatch pattern, is known as
- (A) Honing
- (B) Porous
plating
- (C) Boring
- (D) Shot peening
11. The function of a radiator fan in the cooling system is that
- (A) It
blows air through the radiator when necessary
- (B) It is turned
by wind force as the vehicle moves forward, and its rotation drives the water
pump
- (C) It
cools the engine by blowing air onto the cylinder block
- (D) It
draws heat out of the engine compartment
12. Instead of valves, the ports are used in case of
- (A) Four
stroke I.C. engines
- (B) Two
stroke I.C. engines
- (C) V6 engines
- (D) None of
these
13. The starting system includes
- (A) A
battery, a starter, and an ignition switch
- (B) A
battery, a distributor, and an ignition switch
- (C) A
battery, a starter, and a distributor
- (D) A
distributor, a starter, and an ignition switch
14. The purpose of adding pigment to the paint is that it
- (A) Optimises
the viscosity of paint
- (B) Makes
paint film hard
- (C) Gives
colour and filling up effect to the paint
- (D) None
of the above
15. A laminated glass upon cracking
- (A) Bursts
into sharp edged fragments
- (B) Bursts
into granular pieces
- (C) Sandwiched
layer traps the fragments
- (D) Breaks
into the form of crystals
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