Automobile Engineering Practice Set-3

1. The aluminium alloy is used in cylinder blocks because

It is lighter and has good heat dissipation characteristics

It does not require any cylinder liners

The piston is also made of aluminium alloy

Material cost is low

2. The main function of an exhaust muffler is the

Reduction of nitrogen oxide in the exhaust gases

Reduction of exhaust noise

Optimization of exhaust efficiency

Reduction of the exhaust gas volume

3. If the engine coolant leaks into the engine oil, then engine oil

Turns black

Appears milky

None of these

Become foamy

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

Eliminates the gear shaft lever

Reduces the number of automatic transmission components

Reduces shift shock and achieves more efficient transmission of engine torque

Eliminates gear clutches

5. In Diesel engines, during suction stroke, _________ is drawn in the cylinder.

Only air

Air and fuel

None of these

Only fuel

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

None of these

Equal to the maximum engine torque

150% of the maximum engine torque

80% of the maximum engine torque

7. The characteristic that is enhanced by the use of cylinder sleeves is

Resistance to wear

Cooling efficiency

Lubrication performance

None of these

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

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

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

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

9. The main function of the brake fluid is

Cooling

Lubrication

Power transmission

None of these

10. The three basic cylinder arrangements for automotive engines are

In a row, in line, and opposed

In line, V, and opposed

Flat, radial, and V

V, double row, and opposed

Automobile Engineering Practice Set-3

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Automobile Engineering Practice Set-3

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