Automobile Engine MCQs

Question 1

Compression ratio of a petrol engine is . . . . . . . .

Accepted Answer

Lower than that of diesel engine

Answer

Higher than that of diesel engine

Answer

Equal to that of diesel engine

Answer

None of the above

Question 2

Aluminized valves are never ground; they have to be replaced because

Accepted Answer

Grinding such valves will make them corrosin-prone

Answer

Aluminium is a costly material

Answer

Aluminium surface is difficult to be ground

Answer

None of these

Question 3

In a vacuum type servo-assisted brake system, vacuum is available in . . . . . . . . is made use of

Accepted Answer

Inlet manifold

Answer

Exhaust manifold

Answer

Combustion chamber

Answer

Water jackets

Question 4

Cylinder heads are mostly made out of which of the following material?

Accepted Answer

Cast Iron

Answer

Steel

Answer

Gold

Answer

Silver

Question 5

When coming out of overdrive, the overdrive electric control momentarily

Accepted Answer

Interrupts the ignition system action

Answer

De clutches the engine

Answer

De meshes the sun gear

Answer

None of these

Question 6

What is the location of the choke in the updraft carburettor?

Accepted Answer

Between the throttle and intake manifold

Answer

Above the throttle

Answer

Below the throttle

Answer

None of the above

Question 7

Variable steering ratio can be achieved in case of

Accepted Answer

Rack and pinion

Answer

Worm and sector

Answer

Worm and nut

Answer

Worm and roller

Question 8

The acidity present in grade A for diesel engine is-

Accepted Answer

0.5

Answer

0.1

Answer

0.112

Answer

9.1

Question 9

Cantact breaker points are generally made of

Accepted Answer

Tungsten

Answer

Plastic

Answer

Steel

Answer

Copper