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
Low compressor head pressure in a refrigeration system can be caused by（）.
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 （）.
The output volume of a positive fixed displacement pump can be changed only by （）.
One cause of high head pressure occurring in a refrigeration system can be （）.
A salinity indicator is used to determine the （）.
A salinity indicator is used to determine the （）.
An internal bypass is provided on some hydraulic system suction strainers to help reduce the possibility of （）.
Which of the following statements is correct concerning heat transfer?（）
If the thermal bulb of an expansion valve is incorrectly placed at the center of the coil instead of the end, it will （）.
Heavy wear in a particular area of the inner circumference of a packing ring may be caused by （）.