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
If the viscosity of the liquid being transferred remains constant as the discharge pressure increases, the rotary pump （）.
Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by （）.
When the steering gear is in operation, you should （）.
Heavy wear in a particular area of the inner circumference of a packing ring may be caused by （）.
An internal bypass is provided on some hydraulic system suction strainers to help reduce the possibility of （）.
The major source of chemical contaminants in hydraulic fluid is （）.
Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?（）
A salinity indicator is used to determine the （）.
Which of the following statements is correct concerning heat transfer?（）
If the suction pressure at the refrigeration compressor is below normal, the cause can be（）.