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單項(xiàng)選擇題

Refrigerant is circulated through a refrigeration system by the （）.

A.compressor
B.condenser
C.expansion valve
D.evaporator

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單項(xiàng)選擇題

The type of gauge most commonly used to measure pressure is the （）.

A.bimetallic type
B.diaphragm type
C.bourdon tube type
D.resistance-temperature type

單項(xiàng)選擇題

When refrigerant leaves the receiver, it flows next on to the （）.

A.evaporator coils
B.liquid strainer
C.compressor
D.condenser

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