Cooling and Lubrication in Automobile MCQs

Question 1

Single most important property of lubricated oil is

Accepted Answer

Oil ness

Answer

Its fire point

Answer

Cloud point

Answer

Viscosity index

Question 2

To minimize friction in bearing a thin film of materials are used known as

Accepted Answer

Lubricant

Answer

Coolant

Answer

Graphite

Answer

Cutting oil

Question 3

Greases are not used to lubricate

Accepted Answer

Delicate instruments

Answer

Rail axle boxes

Answer

Gears

Answer

Bearing working at high temperature

Question 4

After leaving the engine, the coolant goes to the

Accepted Answer

Header tank

Answer

Collector tank

Answer

Inlet of the pump

Answer

Fuel tank

Question 5

What is the disadvantage of a water cooling system?

Accepted Answer

Increase in weight of the vehicle

Answer

Less engine sound

Answer

Quick transfer of heat

Answer

None of these

Question 6

For effective air cooling the surface area of the metal which comes in contact with air is . . . . . . . . by providing fins over the cylinder barrels.

Accepted Answer

Increased

Answer

Decreased

Answer

Same

Answer

None of these

Question 7

What is the possible cause for internal leakage?

Accepted Answer

All are correct

Answer

Defective cylinder head gasket

Answer

Cracked cylinder wall

Answer

Loose cylinder head bolt

Question 8

If the thermostat is stuck closed, the engine will

Accepted Answer

Overheat

Answer

Warm up slowly

Answer

Fail to start

Answer

None of these

Question 9

When the engine is not running, the engine oil is stored in

Accepted Answer

Oil pan

Answer

Cylinder head

Answer

Oil pump

Answer

Separate oil tank