Cooling and Lubrication in Automobile MCQ Questions & Answers

1

In case of thermosyphon system,

A) Radiator header tank must be placed higher than the top of the cylinder water jackets B) Radiator header tank must be placed at the same level of the cylinder water jackets C) Radiator header tank must be placed lower than the top of the cylinder water jackets D) None of the above

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

2

In a gear type oil pump the number of gears are

A) 4 B) 2 C) 3 D) 5

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

3

The type of radiator when water flows horizontally from an input tank on one side to another is called

A) Down flow type radiator B) Cross flow type radiator C) Both A and B D) None of these

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

4

Which of the following statements correctly describe the function of a cooling fan?

A) It blows air through the radiator when necessary (for example, when the vehicle is stationary or moving slowly) B) It is turned by the wind force as the vehicle moves forward, and its rotation drives the water pump C) It cools the engine by blowing air onto the cylinder block D) It draws heat out of the engine compartment

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

5

A lubricant is used with the object of

A) Increasing fractional heat B) Increasing resistance C) Decreasing fractional resistance D) Providing direct contact between rubbing surface

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

6

Which of the following is the maintenance of air-cooled engine?

A) Keep fins of cylinder and head always clean of dust and oil B) Keep the ducts always properly positioned C) Keep the ducts always clean of dust and dirt D) All are correct

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

7

Which of the following frictions occurs in an unlubricated journal bearing?

A) Sliding friction B) Rolling friction C) Fluid friction D) Dry friction

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

8

The viscosity is measured by-

A) Fathometer B) Lectometer C) Viscosimeter D) None of these

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

9

Lubrication of all moving parts is essential to-

A) Increase friction B) Reduce friction C) Increase velocity D) None of these

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

10

The function of a jiggle pin is

A) To keep the radiator's inside pressure in a predetermined level while the engine is not running B) To escape air in the coolant while the engine is not running C) to release the excess pressure in the coolant D) To maintain the temperature of coolant

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Cooling and Lubrication in Automobile MCQ Questions & Answers | Automobile Engineering