Automobile Engineering MCQs

Question 1

An imbalance wheel during vehicle operation

Accepted Answer

Bounces vertically or deflects from side to side (as seen from front or rear)

Answer

Makes large noise when its heavy point hits the road surface

Answer

Deflects in the vehicle's longitudinal direction

Answer

Creates a standing wave

Question 2

How many cells are used in a 12 volt car battery?

Accepted Answer

6

Answer

2

Answer

4

Answer

8

Question 3

Vulcanizing means

Accepted Answer

Heating rubber under pressure

Answer

Spraying with special paint

Answer

Melting rubber while stirring it

Answer

None of these

Question 4

Bead wires are made of

Accepted Answer

Steel

Answer

Copper

Answer

Zinc

Answer

Aluminium

Question 5

In which of the following conditions, the idle CO percentage should be measured with the vehicle?

Accepted Answer

Headlights and other electrical devices are switched off

Answer

Headlights and other electrical devices are switched on

Answer

Headlights and other lights are switched off

Answer

Headlights are switched on

Question 6

The materials used for cylinder block are

Accepted Answer

Cast iron and aluminium alloy

Answer

Cast iron and steel

Answer

Steel and aluminium alloy

Answer

Brass and steel

Question 7

The main merit of a multi cylinder type cylinder sleeve is

Accepted Answer

Smaller engine dimensions

Answer

Better cooling efficiency

Answer

High rigidity

Answer

None of these

Question 8

Which one of the following statement correctly describes the construction of a bevel gear type differential?

Accepted Answer

The differential carrier houses differential pinion gears and side gears.

Answer

The drive shafts are splined to the differential carrier.

Answer

The left side gear and the differential carrier rotate in constant unison.

Answer

The differential carrier houses differential pinion gears and side gears; each pinion gear meshes with a different side gear.

Question 9

Which one of the following statements correctly describes the construction of a planetary gear type differential?

Accepted Answer

One drive shaft is splined to the central gear and the other to the planetary gear.

Answer

The six planetary pinions rotate in constant mesh with the internal gears.

Answer

Each planetary pinion gear meshes with both the central gear and the internal gear.

Answer

The internal gear is fixed to the planetary gear.