Automobile Engineering MCQs

Question 1

The cam shaft in an engine is always mounted

Accepted Answer

Parallel to the crankshaft

Answer

Perpendicular to the crankshaft

Answer

Inclined to the crankshaft

Answer

None of these

Question 2

The included angle is the sum of the

Accepted Answer

Camber and S.A.I.

Answer

Camber and castor

Answer

Castor and S.A.I.

Answer

Camber and toe-in

Question 3

The purpose of turning radius gauges is to measure the

Accepted Answer

Turning radius of the left and right wheels

Answer

Contact areas of the tyres

Answer

Free plays of the steering wheel

Answer

Difference in the toe angles of the left and right wheels

Question 4

Two advantages of using helical gears rather than spur gears in a transmission system are

Accepted Answer

Noise level and strength

Answer

Strength and cost

Answer

Strength and less end thrust

Answer

Noise level and economy

Question 5

The best fuels for compression ignition engines are

Accepted Answer

Naphthalene

Answer

Straight chain paraffin

Answer

Aromatics

Answer

Branched chain paraffin

Question 6

In Spark Ignition Engine

Accepted Answer

The mixture of air and fuel is introduced into the cylinder from carburettor

Answer

Only air is introduced into the cylinder

Answer

Both (A) and (B)

Answer

None of these

Question 7

The exhaust gas from petrol engine contains

Accepted Answer

All of these

Answer

Petrol vapours

Answer

Water vapours

Answer

Carbon monoxide

Question 8

The petrol engine works on

Accepted Answer

Otto cycle

Answer

Carnot cycle

Answer

Diesel cycle

Answer

Rankine cycle

Question 9

The Diesel engine works on

Accepted Answer

Diesel cycle

Answer

Otto cycle

Answer

Carnot cycle

Answer

Rankine cycle