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1. Which of the following statements about filling a cooling system is correct?
A. If you must add coolant to a warm engine, you should remove the radiator
cap and add the coolant while the engine is off.
B. In a vehicle that has a coolant recovery system, the radiator should be filled
to the very top with coolant.
C.In a vehicle that has a coolant recovery system, the radiator should be filled
with coolant to about one inch below the top of the filler neck.
D. A coolant recovery tank should always be filled to the very top.
2. Dirt and debris in the radiator's cooling fins, a faulty radiator fan clutch, a
thermostat that is stuck closed, or a damaged air dam are all likely to cause
A. water pump failure.
B. engine overheating.
C. coolant leaks.
D. engine overcooling.
3. Imagine that you are troubleshooting a cooling system. The heater in the
passenger compartment is producing very little heat, but the coolant level in the
engine appears to be okay. When you start the engine, coolant starts flowing
immediately. The probable cause of this problem is
A. a thermostat stuck open.
B. a coolant leak into the lubrication system.
C. a thermostat stuck closed.
D. a coolant leak into a combustion chamber.
4. If a water pump's ____ is worn, the pump shaft has too much free play, and
the pump makes a loud whining noise as it operates.
A. seal
B. impeller
C. drive belt
D. bearing
5. Which of the following statements about water pump drive belts is correct?
A. The tension in a serpentine belt must be adjusted regularly.
B. In a serpentine drive belt system, the belt tension is usually maintained by a
sprinq-loaded idler pulley.
lC. If a water pump is driven by an engine's timing belt, a drive-belt pulley
keeps the belt at the proper tension.
D. If a water pump is driven off the crankshaft by V-type belts, the belt tension
never needs to be adjusted.

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Anonymous
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