A.overboard
B.a bilge well
C.a slop tank
D.a hot well
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A.by trial and error
B.by and large
C.automatically
D.very easily
A.catch plates
B.dampers
C.regulating valves
D.fans
A.few
B.little
C.a little
D.less
A.pressure
B.temperature
C.density
D.volume
A.pressure
B.temperature
C.density
D.volume
最新試題
A pressure drop through the refrigerant liquid line may cause （）.
Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?（）
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?（）
Who is responsible for ensuring that someone is assigned to close the watertight doors in an emergency?（）
A grease gun is generally used to lubricate a （）.
When a refrigeration compressor has developed a high head pressure as a result of a refrigerant overcharge, you should （）.
Low compressor head pressure in a refrigeration system can be caused by（）.
An increasing head pressure in a refrigeration system, without any corresponding change in the cooling water inlet temperature, would probably be caused by （）.
If the suction pressure at the refrigeration compressor is below normal, the cause can be（）.
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.