Automobile Engine MCQs

Question 1

The fuel in the float chamber is kept at a constant level by the action of

Accepted Answer

Float and needle valve

Answer

Main jet

Answer

Opening of throttle valve

Answer

Fuel pump

Question 2

The distance between T. D. C. and B. D. C. is called-

Accepted Answer

Stroke

Answer

Bore

Answer

Throw

Answer

None of these

Question 3

Synchronizing devices are designed to prevent gear clash when shifting into

Accepted Answer

Second and high

Answer

First and second

Answer

First and reverse

Answer

Second and reverse

Question 4

The efficiency of internal combustion engine ranges from

Accepted Answer

15% - 35%

Answer

20% - 40%

Answer

25% - 30%

Answer

30% - 35%

Question 5

Choose the correct statement with regard to the bearing spread.

Accepted Answer

The distance across the outside parting edges of each bearing is slightly greater than the diameter of the housing bore

Answer

The distance across the outside parting edges of each bearing is slightly smaller than the diameter of the housing bore

Answer

The diameter of each bearing is slightly greater than the diameter of the housing bore

Answer

The distance across the outside parting edges of a bearing half is slightly greater than that of the other bearing half

Question 6

The function of a proportioning control valve (PCV) in a brake system is to

Accepted Answer

Cause less brake fluid pressureto act on the rear brakes than on the front brakes when the fluid pressure exceeds a predetermined level

Answer

Ensure that equal pressure is supplied to the front and rear brakes throughout every braking operation

Answer

Reduce the brake fluid pressure when the brakes approach their lockup point

Answer

Cause less brake fluid pressure to act on the front brakes than on the rear brakes when the fluid pressure exceeds a predetermined level

Question 7

The contact breaker gap is set most acurately by means of a

Accepted Answer

Dwell meter

Answer

Feeler gauge

Answer

Steel rule

Answer

Dial gauge

Question 8

Disadvantage of petrol injections is-

Accepted Answer

Both are correct

Answer

Higher initial cost

Answer

Complicated design

Answer

None of these

Question 9

The parking brakes employed in vehicles are operated

Accepted Answer

Mechanically

Answer

Hydraulically

Answer

Pneumatically

Answer

None of these