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單項(xiàng)選擇題

“Flooding back” is a condition where the liquid refrigerant （）.

A.vaporizes in the condenser
B.reaches the compressor through the suction line
C.flashes in the liquid line
D.condenses in the receiver

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單項(xiàng)選擇題

Thermal energy in transition is also referred to as （）.

A.heat
B.power
C.horsepower
D.foot-pound

單項(xiàng)選擇題

Noise in a refrigeration compressor can be caused by （）.

A.worn bearings and piston pins
B.slugging due to flooding back
C.too much oil in circulation
D.All of the above

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