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單項(xiàng)選擇題

In a vapor compression refrigeration the evaporating pressure is maintained constant by the action of the （）, which removes vapor from the evaporator at the same rate at which it is formed.

A.evaporator
B.compressor
C.condenser
D.none of the above

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單項(xiàng)選擇題

What is the function of thermostatic expansion valve in a compression refrigeration system?（）

A.nonexistent
B.for controlling pressure
C.for controlling superheat
D.for controlling the solenoid valve

單項(xiàng)選擇題

In a compression refrigeration plant the hot, high pressure refrigerant gas is cooled by the sea water and becomes liquid in the （）.

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

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