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

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

A. 4

B. 2

C. 3

D. 5

A. Down flow type radiator

B. Cross flow type radiator

C. Both A and B

D. None of these

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

A. Increasing fractional heat

B. Increasing resistance

C. Decreasing fractional resistance

D. Providing direct contact between rubbing surface

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

A. Sliding friction

B. Rolling friction

C. Fluid friction

D. Dry friction

A. Fathometer

B. Lectometer

C. Viscosimeter

D. None of these

A. Increase friction

B. Reduce friction

C. Increase velocity

D. None of these

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