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
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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
A.compressor
B.condenser
C.evaporator
D.expansion valve
A.latent heat of fusion
B.latent heat of vaporization
C.specific heat of vaporization
D.latent heat of the gas
最新試題
If you are given the job of adding hydraulic fluid to a mooring winch, and are not certain as to the type of fluid to use, you should （）.
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 （）.
The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its （）.
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.
The major source of chemical contaminants in hydraulic fluid is （）.
When the steering gear is in operation, you should （）.
The control mode in which the final control element is moved from one of two flexed positions to the other is known as （）.
An increasing head pressure in a refrigeration system, without any corresponding change in the cooling water inlet temperature, would probably be caused by （）.
The output volume of a positive fixed displacement pump can be changed only by （）.