A.Evaporation
B.Circulation
C.Condensation
D.Distillation
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A.Hydraulic oil
B.Animal oil
C.Light oil
D.Fuel oil
A.Motors
B.Check valves
C.Safety valves
D.Reducing valve
A.cargo crane
B.jib
C.safe working load
D.oil pressure
A.dock
B.hold
C.pedestal
D.machinery space
A.the slewing motor
B.the luffing motor
C.the hoisting motor
D.none of the above
最新試題
Who is responsible for ensuring that someone is assigned to close the watertight doors in an emergency?（）
The output volume of a positive fixed displacement pump can be changed only by （）.
Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?（）
Low compressor head pressure in a refrigeration system can be caused by（）.
A salinity indicator is used to determine the （）.
If the relief valve on the discharge side of a hydraulic pump lifts, the cause could be （）.
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?（）
An increasing head pressure in a refrigeration system, without any corresponding change in the cooling water inlet temperature, would probably be caused by （）.
A salinity indicator is used to determine the （）.
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.