A.detect the temperature
B.detect the pressure
C.heat the refrigerant
D.accelerate the refrigerant
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A.superheat of the gas leaving the compressor
B.back pressure in the evaporator
C.temperature of the icebox
D.superheat of the gas leaving the evaporator
A.either all the way open or all the way closed
B.normally fully open
C.throttled depending on load
D.controlled by liquefied pressure
A.dry
B.wet
C.super-cooled
D.superheated
A.compressor
B.cooling coils
C.condenser
D.receiver
A.condenser；evaporator
B.evaporator；compressor
C.compressor；condenser
D.None of the above
最新試題
A pressure drop through the refrigerant liquid line may cause （）.
Heavy wear in a particular area of the inner circumference of a packing ring may be caused by （）.
The rate of heat transfer between the hot and cold fluids passing through a shell-and-tube type heat exchanger will （）.
A salinity indicator is used to determine the （）.
The temperature differential occurring between the inlet temperature of the fluid to be cooled and the outlet temperature of the cooling medium in a shell-and-tube heat exchanger is greatest in which of the flow designs listed?（）
The general purpose of a heat exchanger is to （）.
Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?（）
Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by （）.
A salinity indicator is used to determine the （）.
If the thermal bulb of an expansion valve is incorrectly placed at the center of the coil instead of the end, it will （）.