Automobile Engineering Practice Set-1

1. The function of a first compression ring (top ring) is that it

Increases the combustion temperature

Maintains a seal and prevents escape of burned gases and loss of pressure in the combustion chamber

Creates swirl

Maintains a seal and prevents the fuel leakage

2. The drive-shafts are connected to the differential and wheel hubs through universal joints because the universal joints

Absorb any difference in speed between the left and right wheels when the vehicle is turning

None of the above

Compensate for variations in the relative positions of the differential and the wheels which result from bumpy road surfaces or other similar driving conditions.

Absorb the vibrations transferred from the surface of the road

3. The auto ignition in a spark ignition engine means

Ignition of the charge before the passage of flame front

Ignition induced by the passage of a spark

Ignition induced to supplement the process of normal combustion

Automatic ignition of the charge at the end of compression

4. The vehicle ride will be comfortable if

Sprang mass is kept minimum

Vehicle mass is kept minimum

All of these

Unsprung mass is kept minimum

5. The braking control type traction control system (TCS) generally operates in the speed range of

Less than 40 kmph

More than 60 kmph

Less than 60 kmph

Less than 20 kmph

6. When the brake pedal free play is less than the specified value, then the

Vapour locking occurs in the brake lines

Brake drags

Brake fades

Antilock braking system malfunctions

7. The engine oil viscosity is defined by ___________ ratings.

Automatic transmission fluid (ATF)

American petroleum institute (API)

Gross vehicle weight (GVW)

Society of automotive engineers (SAE)

8. The stroke of an engine is the

Distance between T.D.C. and B.D.C.

Length of the connecting rod

Internal diameter of the cylinder

Volume of the cylinder

9. The path taken by intake air is

Air cleaner carburettor (or throttle body) intake manifold intake ports cylinders

Carburettor (or throttle body) air cleaner intake manifold intake ports cylinders

Air cleaner carburettor (or throttle body) intake ports intake manifold cylinders

Air cleaner intake manifold carburettor (or throttle body) intake ports cylinders

10. The capacity of a battery is usually expressed in terms of

Volts

Weight

Ampere hours

Amperes

Automobile Engineering Practice Set-1

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