Heating and Air Conditioning Operation



1.	If liquid refrigerant is released from a solid container or automotive air conditioning system, it heats very quickly.
	A.	True.
	B.	False.

2.	Which of the following is true of liquid refrigerant?
	A.	It is unlawful to vent refrigerant into the atmosphere.
	B.	Refrigerant can cause eye injury.
	C.	Refrigerant can cause frostbite.
	D.	All of the above.

3.	Which of the following is true of compressors?
	A.	Liquid refrigerant makes compressors extremely cold to the touch.
	B.	Let a compressor warm before working on it.
	C.	Let a compressor cool before working on it.
	D.	Temperature is not an issue when working on compressors.

4.	A sticking thermostat may cause engine overheating.
	A.	True.
	B.	False.

5.	If a vehicle coolant system boils over, which of the following may be true?
	A.	The pressure cap may be faulty.
	B.	The cooling system will lose fluid.
	C.	System operation will falter.
	D.	All of the above.

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