Mechanical Engineering Questions and Answers

Challenge your knowledge of machinery, prepare for your exams or aptitude tests with these Mechanical Engineering questions and answers.

21.

If the air-fuel mixture ignites before the spark takes place at spark plug, the condition is called

detonation

ignition

pre-ignition

rumble

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

22.

If the level of tension in the belt is too high, it can result in a loss of power or in bending of the rotating shaft or crankshaft.

Correct

Incorrect

Cannot say

Tension in the belt can never be too high

View answer & explanation

Correct answer is A

No explanation has been provided for this answer.

23.

The co-efficient of rolling resistance for a truck weighing 63 500 N is 0.018. The rolling resistance to the truck is

1.143 N

11.43 N

114.3 N

1143 N

View answer & explanation

Correct answer is D

No explanation has been provided for this answer.

24.

The advantage of double-wishbone suspension design is that a large amount of freedom is available for setting geometry, and precise settings can be made for driving comfort and steerability

Correct

Incorrect

Cannot say

It depends

View answer & explanation

Correct answer is A

No explanation has been provided for this answer.

25.

If the air-fuel mixture in a spark ignition engine is too rich, then air-fuel ratio is about

17:1

15:1

13:1

10:1

View answer & explanation

Correct answer is D

No explanation has been provided for this answer.

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