Cooling and Lubrication in Automobile MCQs

Question 1

The function of lubrication in IC engine is

Accepted Answer

To dissipate the heat due to friction

Answer

To reduce friction

Answer

To cool the cylinde

Answer

None of the above

Question 2

The type of water which is good for use in the coolant is

Accepted Answer

Soft water

Answer

Hard water

Answer

Deionized water

Answer

Any kind of water

Question 3

The primary objects of lubrication are-

Accepted Answer

All are correct

Answer

To reduce friction between the moving parts

Answer

To reduce wear of the moving parts

Answer

To act as a cooling medium for moving heat

Question 4

Grease is . . . . . . . . type of lubricant.

Accepted Answer

Semi-solid

Answer

Solid

Answer

Liquid

Answer

None of these

Question 5

A good anti-freeze material have the requirements

Accepted Answer

All are correct

Answer

It should mix readily with water

Answer

It should circulate freely in the cooling system

Answer

It should be reasonably cheap

Question 6

Which temperature for a lubricating oil will be lowest?

Accepted Answer

Pour point

Answer

Flash point

Answer

Fire point

Answer

Boiling point

Question 7

The most important quality of any lubricant is

Accepted Answer

Viscosity

Answer

Specific gravity

Answer

Specific heat

Answer

Emulsification

Question 8

Approximately . . . . . . . . . . per cent of fuel energy has to be taken by cooling system.

Accepted Answer

28%

Answer

50%

Answer

100%

Answer

10%

Question 9

The type of grease which is fairly water proof and is useful for chassis and wheel bearings is

Accepted Answer

Calcium based grease

Answer

Sodium based grease

Answer

Aluminium based grease

Answer

None of these