Exam 14: Lubricating and Cooling Systems

The typical recommended mixture of water and antifreeze is ______.

When installing an oil pump in an engine: Technician A packs the pump with petroleum jelly. Technician B submerges the pump in clean oil and rotates the pump shaft to fill the pump body. Who is correct?

What is the purpose of a radiator petcock?

Hoses are sized based on their ______.

A pressure relief (regulator) valve, located inside the oil filter, is designed to limit engine oil pressure.

The petcock valve is located _____.

One purpose of the oil pan is cooling the oil through its contact with the outside air.

ECD [electrochemical degradation] usually occurs within two inches of the hose end-not in the middle.

Most manufacturers recommend that cooling systems should be drained, flushed, and filled every ______.

When is a fan shroud required?

The oil pressure ____________________ valve prevents excessively high system pressure from occurring as engine speed is increased.

To save power and reduce noise levels, most late model vehicles have an electrically driven cooling fan.

Engine oil pumps have ____________________ displacement.

Technician A says a cooling system pressure tester is used to test for leaks in the radiator, hoses, water pump, thermostat, and engine assembly. Technician B say the cooling system pressure tester is used to check the operation of the relief valve in the radiator cap. Who is correct?

To drain a cooling system that does not have a petcock or drain plug in the radiator, ______.

When crankcase pressure is abnormally low, oil is forced out through joints that normally would not leak.

Describe how to check a fan clutch.

Oil coolers are normally found on _____ vehicles.

Which of the following cooling system hoses is normally subjected to the roughest service life?

Most cooling systems use an expansion or ____________________ tank.