Mechanical Engineering questions and answers

Mechanical Engineering Questions and Answers

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

1.

The component that connects the steering rack to the knuckles is

A.

tie-rod

B.

sector gear

C.

pivot

D.

spline

Correct answer is A

No explanation has been provided for this answer.

2.

The coefficient of friction for the clutch facing is approximately

A.

0.1

B.

0.4

C.

0.8

D.

1.2

Correct answer is B

No explanation has been provided for this answer.

3.

Which of the following indicates a multigrade oil ?

A.

SAE 30

B.

API SF

C.

SAE 20 W-50

D.

API 50

Correct answer is C

No explanation has been provided for this answer.

4.

The petrol engines are also known as

A.

spark ignition (S.I.) engines

B.

compression ignition (C.I.) engines

C.

steam engines

D.

none of these

Correct answer is A

No explanation has been provided for this answer.

5.

The valve overlap in four stroke petrol engines is approximately

A.

30°

B.

60°

C.

90°

D.

120°

Correct answer is A

No explanation has been provided for this answer.

6.

The cetane number of a Diesel fuel is a measure of

A.

volatility

B.

viscosity

C.

ignition quality

D.

delay period

Correct answer is D

No explanation has been provided for this answer.

7.

The air gap between the central electrode and ground (or side) electrode of a spark plug is around

A.

0.2 mm

B.

0.5 mm

C.

1 mm

D.

1.5 mm

Correct answer is C

No explanation has been provided for this answer.

8.

The cetane rating of Diesel fuel is in the order of

A.

25

B.

45

C.

70

D.

90

Correct answer is B

No explanation has been provided for this answer.

9.

The natural gas is compressed in a CNG cylinder at a pressure of

A.

200 bar

B.

220 bar

C.

250 bar

D.

300 bar

Correct answer is A

No explanation has been provided for this answer.

10.

The most commonly used supplementary restraint system (SRS) component is

A.

seat belt

B.

brake

C.

airbag

D.

steering

Correct answer is C

No explanation has been provided for this answer.