Automobile Engineering - Set 09

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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Automobile Engineering:
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