A.pressure
B.temperature
C.density
D.volume
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A.the saturation temperature is higher
B.the higher the saturation temperature
C.the higher is the saturation temperature
D.the saturation temperature is more high
A.liquid
B.steam
C.gas
D.electricity
A.did work
B.would work well
C.didnt work
D.wouldnt work
A.as well as
B.as long as
C.rather than
D.other than
A.the oil content in water
B.the water content in fuel oil
C.the water level in bilge well
D.the oil level in bilge well
最新試題
One cause of high head pressure occurring in a refrigeration system can be （）.
If the relief valve on the discharge side of a hydraulic pump lifts, the cause could be （）.
Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?（）
The control mode in which the final control element is moved from one of two flexed positions to the other is known as （）.
If the thermal bulb of an expansion valve is incorrectly placed at the center of the coil instead of the end, it will （）.
A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by （）.
If the head pressure of a reciprocating refrigeration compressor is excessive, （）.
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.
If the suction pressure at the refrigeration compressor is below normal, the cause can be（）.
The general purpose of a heat exchanger is to （）.