Author Question: Water pumps ________. A) Are driven by the engine crankshaft or camshaft B) Only work at idle ... (Read 126 times)

123654777 · **on:** Jun 23, 2018

Water pumps ________.

A) Are driven by the engine crankshaft or camshaft
B) Only work at idle and low speeds and are disengaged at higher speeds
C) Use engine oil as a lubricant and coolant
D) Disengage during freezing weather to prevent radiator failure

Question 2

What can be done to prevent air from getting trapped in the cooling system when the coolant is replaced?

A) Pour the coolant into the radiator slowly.
B) Use a coolant exchange machine that draws a vacuum on the system.
C) Open the air bleeder valves while adding coolant.
D) Either B or C