Mechanical Engineering

Question: 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.

Answer: Option A

Explanation:

No answer description available for this question.

Question: In automobiles G.V.W. refers to
[A].

gross vehicle width

[B].

gross vehicle weight

[C].

gross vehicle wheel base

[D].

gross vehicle wheel track

Answer: Option B

Explanation:

No answer description available for this question.

Question: Which of the following symptom is caused as a result of brake disc run out ?
[A].

Ineffectiveness of the brakes

[B].

Judder during braking

[C].

Localized wearing of the brake pads

[D].

Rapid wearing of the brake pads

Answer: Option B

Explanation:

No answer description available for this question.

Question: The brake warning light warns the driver of
[A].

water in the master cylinder

[B].

air in the hydraulic system

[C].

failure of the primary or secondary circuit of hydraulic system

[D].

power-brake failure

Answer: Option C

Explanation:

No answer description available for this question.

Question: The brake pedal during ABS operation
[A].

is pushed upward forcefully

[B].

pedal stroke becomes longer

[C].

transmits slight kickback to the driver’s foot

[D].

all of the above

Answer: Option C

Explanation:

No answer description available for this question.

Question: The basic characteristics of a brake fluid is
[A].

a high boiling point

[B].

low viscosity

[C].

compatibility with rubber and metal parts

[D].

all of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: The advantage of having a tandem master cylinder arrangement in automobiles is that it
[A].

enhances safety by serving two independent lines in a divided-line brake circuit

[B].

enhances safety by activating the brakes using vacuum pressure in the event of brake fluid loss

[C].

supplies equal fluid pressure to each line of a divided-line brake circuit, thereby preventing the brakes from dragging on one side

[D].

boosts the brake fluid pressure to reduce the force required to depress the brake pedal

Answer: Option A

Explanation:

No answer description available for this question.

Question: During braking, the brake shoe is moved outward to force the lining against the
[A].

wheel piston or cylinder

[B].

anchor pin

[C].

brake drum

[D].

wheel rim or axle

Answer: Option C

Explanation:

No answer description available for this question.

Question: In a ventilated disc brake,
[A].

a duct directs air towards the caliper for cooling while the vehicle is moving

[B].

caliper is covered with cooling fins

[C].

disc contains many small holes for optimum cooling performance

[D].

disc contains radial vanes between its rubbing surfaces for optimum cooling performance

Answer: Option D

Explanation:

No answer description available for this question.

Question: 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

Answer: Option C

Explanation:

No answer description available for this question.