Automobile Engineering Practice Set-3

1. The component of the oil filter that prevents the passage of metal particles and sludge is

Case

Relief valve

Element

Check valve

2. An engine has a clearance volume of 100 cm³ and a swept volume of 800 cm³. The compression ratio is

10 : 1

7 : 1

9 : 1

8 : 1

3. The major purpose of an electronically controlled automatic transmission is that this type of transmission

Reduces the number of automatic transmission components

Eliminates the gear shaft lever

Reduces shift shock and achieves more efficient transmission of engine torque

Eliminates gear clutches

4. In a ventilated disc brake

A duct directs air towards the caliper for cooling while the vehicle is moving

Disc contains radial vanes between its rubbing surfaces for optimum cooling performance

Disc contains many small holes for optimum cooling performance

Caliper is covered with cooling fins

5. The torque available at the contact between driving wheels and road is known as

None of these

Brake effort

Clutch effort

Tractive effort

6. Which part of the automobile tyre is subjected to greatest flexing action?

Tread

Shoulder

Side wall

Bead

7. The main function of the tread pattern on tyre is that

The crests between the tread grooves absorb road noise

The tread grooves pass air between the tyre and road surface, thereby preventing tyre from overheating

The tread pattern protects the tyre's inner carcass from small stones and pieces of glass

In wet conditions, the tread grooves expel water that is drawn between the tyre and road surface

8. In Diesel engines, the duration between the time of injection and the time of ignition is called

Ignition period

Spill cut-off

Injection period

Delay period

9. A clutch is usually designed to transmit maximum torque which is

150% of the maximum engine torque

80% of the maximum engine torque

Equal to the maximum engine torque

None of these

10. In bias ply tyres

One ply layer runs diagonally one way and another layer runs diagonally the other way

Belts of steel mesh are used in the tyres

All of the above

All plies run parallel to one another

Automobile Engineering Practice Set-3

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Automobile Engineering Practice Set-3

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