Automobile Engineering MCQ Questions & Answers

71

An imbalance wheel during vehicle operation

A) Makes large noise when its heavy point hits the road surface B) Deflects in the vehicle's longitudinal direction C) Bounces vertically or deflects from side to side (as seen from front or rear) D) Creates a standing wave

Discuss

Answer & Solution

Answer: Option C

Solution:

An imbalance wheel during vehicle operation Bounces vertically or deflects from side to side (as seen from front or rear)

72

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

A) 2 B) 4 C) 6 D) 8

Discuss

Answer & Solution

Answer: Option C

Solution:

6 cells are used in a 12 volt car battery

73

Vulcanizing means

A) Heating rubber under pressure B) Spraying with special paint C) Melting rubber while stirring it D) None of these

Discuss

Answer & Solution

Answer: Option A

Solution:

Vulcanizing means Heating rubber under pressure

74

Bead wires are made of

A) Steel B) Copper C) Zinc D) Aluminium

Discuss

Answer & Solution

Answer: Option A

Solution:

Bead wires are made of Steel.

75

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

A) Headlights and other electrical devices are switched off B) Headlights and other electrical devices are switched on C) Headlights and other lights are switched off D) Headlights are switched on

Discuss

Answer & Solution

Answer: Option A

Solution:

Headlights and other electrical devices are switched off where the idle CO percentage should be measured with the vehicle

76

The materials used for cylinder block are

A) Cast iron and steel B) Cast iron and aluminium alloy C) Steel and aluminium alloy D) Brass and steel

Discuss

Answer & Solution

Answer: Option B

Solution:

The materials used for cylinder block are Cast iron and aluminium alloy

77

The main merit of a multi cylinder type cylinder sleeve is

A) Smaller engine dimensions B) Better cooling efficiency C) High rigidity D) None of these

Discuss

Answer & Solution

Answer: Option A

Solution:

The main merit of a multi cylinder type cylinder sleeve is Smaller engine dimensions

78

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

A) The drive shafts are splined to the differential carrier. B) The left side gear and the differential carrier rotate in constant unison. C) The differential carrier houses differential pinion gears and side gears; each pinion gear meshes with a different side gear. D) The differential carrier houses differential pinion gears and side gears.

Discuss

Answer & Solution

Answer: Option D

Solution:

The differential carrier houses differential pinion gears and side gears.

79

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

A) The six planetary pinions rotate in constant mesh with the internal gears. B) One drive shaft is splined to the central gear and the other to the planetary gear. C) Each planetary pinion gear meshes with both the central gear and the internal gear. D) The internal gear is fixed to the planetary gear.

Discuss

Answer & Solution

Answer: Option B

Solution:

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

80

Two general types of tyres are

A) Tube type and tubeless B) Solid and tubeless C) Air and pneumatic D) Split rim and drop centre

Discuss

Answer & Solution

Answer: Option A

Solution:

Two general types of tyres are tube type and tubeless.

Automobile Engineering MCQ Questions & Answers | Mechanical Engineering