Automobile Engineering MCQ Questions & Answers

71

The vehicle ride will be comfortable if

A) Unsprung mass is kept minimum B) Sprang mass is kept minimum C) Vehicle mass is kept minimum D) All of these

Discuss

Answer & Solution

Answer: Option A

Solution:

The vehicle ride will be comfortable if Unsprung mass is kept minimum

72

In a four stroke engine for each crankshaft revolution, the camshaft revolves

A) One half turn B) One turn C) Two turns D) Four turns

Discuss

Answer & Solution

Answer: Option A

Solution:

In a four stroke engine for each crankshaft revolution, the camshaft revolves One half turn

73

A battery can be charged by

A) Adding distilled water B) Adding sulphuric acid C) Applying voltage in the reverse direction to that of charging D) Applying a voltage in the same direction to that of charging

Discuss

Answer & Solution

Answer: Option C

Solution:

A battery can be charged by Applying voltage in the reverse direction to that of charging

74

The process of removing the burnt gases from the engine cylinder by the fresh charge coming into the engine cylinder from the crankcase, is known as

A) Cleaning B) Priming C) Scavenging D) Detonation

Discuss

Answer & Solution

Answer: Option C

Solution:

scavenging is the process of pushing exhausted gas-charge out of the cylinder and drawing in a fresh draught of air or fuel/air mixture for the next cycle. This process is essential in having a smooth-running internal combustion engine.

75

Caster is a

A) Forward tilt of the kingpin B) Backward tilt of the kingpin C) Either 'A' or 'B' D) None of these

Discuss

Answer & Solution

Answer: Option C

Solution:

A caster is a wheeled device typically mounted to a larger object that enables relatively easy rolling movement of the object.
Caster creates stability as the geometry created forces the wheels back to straight. The front wheels are “encouraged” to stay straight as turning them involves lifting the car weight.

76

The valve tappet clearance is measured by

A) Screw pitch gauge B) Engineering scale C) Feeler gauge D) Vernier caliper

Discuss

Answer & Solution

Answer: Option C

Solution:

A feeler gauge is a tool used to measure gap widths.
Feeler gauges are mostly used in engineering to measure the clearance between two parts

77

The parking brakes employed in vehicles are operated

A) Mechanically B) Hydraulically C) Pneumatically D) None of these

Discuss

Answer & Solution

Answer: Option A

Solution:

The parking brake is connected to the rear brakes, which do not exert as much force in braking as the front brakes and will do little to stop a vehicle moving at high speeds.

78

Free pedal play in car clutches is about

A) 15 mm B) 25 mm C) 40 mm D) 60 mm

Discuss

Answer & Solution

Answer: Option B

Solution:

Free pedal play in car clutches is about 25 mm

79

The function of a connecting rod is

A) To turn the flywheel B) To drive the drive plate C) To drive the fuel pump D) To transmit motion of the piston to the crankshaft

Discuss

Answer & Solution

Answer: Option D

Solution:

A connecting rod is an engine component that transfers motion from the piston to the crankshaft and functions as a lever arm.
Connecting rods are commonly made from cast aluminum alloy and are designed to withstand dynamic stresses from combustion and piston movement.

80

The rolling resistance is because of the friction between the

A) Wheel rim and tyre B) Tyre and the road surface C) Wheel rim and road surface D) None of these

Discuss

Answer & Solution

Answer: Option B

Solution:

The rolling resistance is because of the friction between the Tyre and the road surface

Automobile Engineering MCQ Questions & Answers | Mechanical Engineering