Automobile Engine MCQs

Question 1

With the increase of battery temperature, the specific gravity of electrolyte

Accepted Answer

Decreases

Answer

Increases

Answer

Remains the same

Answer

None of these

Question 2

An average crude oil yields about . . . . . . . . percentage of straight run gasoline.

Accepted Answer

25%

Answer

75%

Answer

50%

Answer

100%

Question 3

In drum type brake the fluid on releasing, returns to the master cylinder due to the action of the piston return spring and

Accepted Answer

Whell cylinder spring

Answer

By-pass port

Answer

Compensating port sping

Answer

Bake shoe retractor

Question 4

Which of the formula for Brake Thermal Efficiency is correct?

Accepted Answer

$${{BHP 	imes 632 \cdot 5} \over {{m_f} 	imes {C_v}}}$$

Answer

$${{BHP} \over {{m_f} 	imes {C_v}}}$$

Answer

$${{BHP 	imes 373} \over {{m_f} 	imes {C_v}}}$$

Answer

$${{BHP 	imes 223} \over {{m_f}}}$$

Question 5

The advantage of having a tandem master cylinder arrangement in automobiles is that it

Accepted Answer

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

Answer

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

Answer

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

Answer

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

Question 6

The external radius of the cone clutch is 120 mm and the internal radius is 80 mm. The cone angle is kept at 20°. What is the effective mean radius assuming the uniform wear theory?

Accepted Answer

292 mm

Answer

295 mm

Answer

100 mm

Answer

150 mm

Question 7

Vacuum tank is connected to the value of brake booster through a . . . . . . . . Pipe?

Accepted Answer

Steel

Answer

Rubber

Answer

Copper

Question 8

A fully-charged 6 cell automotive battery should indicate

Accepted Answer

Both B and C

Answer

12 V

Answer

12.6 V

Answer

sp. gravity of 1.290 at 32°C

Question 9

The parts of the cover assembly that hold the pressure plate against the clutch plate are the

Accepted Answer

Springs

Answer

Release levers

Answer

Thrust bearings

Answer

Struts