A.starting air bottles
B.diesel engines
C.boilers
D.refrigeration compressors
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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
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A grease gun is generally used to lubricate a （）.
A salinity indicator is used to determine the （）.
When the steering gear is in operation, you should （）.
If the thermal bulb of an expansion valve is incorrectly placed at the center of the coil instead of the end, it will （）.
The general purpose of a heat exchanger is to （）.
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?（）
Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?（）
The rate of heat transfer from a hot region to a cold region is affected most by the （）.
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?（）