A.fan
B.compressor
C.condenser
D.evaporator
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A.starting air bottles
B.diesel engines
C.boilers
D.refrigeration compressors
A.below
B.above
C.equal to
D.much larger than
A.starting the ME
B.starting the emergency electric alternator
C.driving the main turbine
D.driving the turbocharger
A.air compressor
B.refrigeration compressor
C.vacuum pump
D.purifier
A.boiling off
B.flash evaporation
C.condensation
D.none of the above
A.to cut down the amount of cooling water needed
B.to prevent an excess amount of cooling water from being discharged to the bilges
C.to supply hot water to the evaporator for more economical operation
D.None of the above is tree
A.to decrease scale formation
B.for better cooling effect
C.for more economical purpose
D.to raise vacuum
A.a brine pump
B.an air ejector
C.a feed water pump
D.a condensate pump
A.a brine pump
B.an air ejector
C.a feed pump
D.distillate pump
A.dispose
B.dissolve
C.heat
D.dissipates
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最新试题
The rate of heat transfer from a hot region to a cold region is affected most by the ().
When the steering gear is in operation, you should ().
Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?()
If the relief valve on the discharge side of a hydraulic pump lifts, the cause could be ().
Which of the following statements is correct concerning heat transfer?()
Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by ().
A salinity indicator is used to determine the ().
If the suction pressure at the refrigeration compressor is below normal, the cause can be().
A salinity indicator is used to determine the ().
Who is responsible for ensuring that someone is assigned to close the watertight doors in an emergency?()