A.first stage
B.second stage
C.distillate cooler
D.salt water feed heater
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A.Gravity siphon effect
B.Higher vacuum in the second-stage
C.Difference in brine density between first and second stages
D.lower pressure in first-stage
A.decreased compression ratio
B.higher than normal power consumption
C.un-loader malfunction
D.water in the lubricating oil
A.reduce friction between moving surfaces
B.provide even distribution of bearing wear
C.reduce the accumulation of harmful detergents
D.maintain a constant oil temperature output at each beating
A.vapor feed heater
B.air ejector condenser
C.saltwater heater
D.distillate cooler
A.ballast tanks
B.sludge tanks
C.machinery space bilges
D.cargo hold bilges
最新試題
The output volume of a positive fixed displacement pump can be changed only by （）.
Which of the following statements is correct concerning heat transfer?（）
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.
An increasing head pressure in a refrigeration system, without any corresponding change in the cooling water inlet temperature, would probably be caused by （）.
A pressure drop through the refrigerant liquid line may cause （）.
One cause of high head pressure occurring in a refrigeration system can be （）.
Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?（）
When a refrigeration compressor has developed a high head pressure as a result of a refrigerant overcharge, you should （）.
If the viscosity of the liquid being transferred remains constant as the discharge pressure increases, the rotary pump （）.
A salinity indicator is used to determine the （）.