Automobile Engineering MCQs

Question 1

In an engine, the temperature of the piston will be more at the

Accepted Answer

Crown of the piston

Answer

Skirt of the piston

Answer

Piston walls

Answer

Piston rings

Question 2

The diagram which shows the correct crank positions corresponding to the opening and closing of the valves, is known as

Accepted Answer

Valve timing diagram

Answer

Indicator diagram

Answer

Axial force diagram

Answer

None of these

Question 3

Engine misfiring is likely to result from

Accepted Answer

Spark plug gap too wide

Answer

Spark plug gap too small

Answer

Vapours lock in the fuel only

Answer

Incorrect fuel air mixture

Question 4

A clutch is usually designed to transmit maximum torque which is

Accepted Answer

150% of the maximum engine torque

Answer

Equal to the maximum engine torque

Answer

80% of the maximum engine torque

Answer

None of these

Question 5

The effect of vapour locking on the brake performance is that the

Accepted Answer

Brakes fail completely

Answer

Brakes function more effectively

Answer

Brake operation is delayed after depression of the brake pedal

Answer

Vapour locking has no effect on brake performance

Question 6

The acid used in automobile battery is

Accepted Answer

Sulphuric acid

Answer

Hydrochloric acid

Answer

Hydrofluoric acid

Answer

Nitric acid

Question 7

Damper in an automobile is used to

Accepted Answer

Dissipate the energy

Answer

Absorb the energy

Answer

Release the energy

Answer

Increase the energy

Question 8

In a hydraulic power steering system, the power steering pump is driven by a

Accepted Answer

Belt driven by crankshaft

Answer

Belt driven by camshaft

Answer

Chain driven by crankshaft

Answer

Belt driven by drive-shaft

Question 9

The antiknock property of compression ignition engine fuel can be improved by adding

Accepted Answer

Amyl nitrate

Answer

Tetraethyl lead

Answer

Trimethyl pentane

Answer

Hexadecane