A.an immediate crankcase explosion
B.oil contamination in the compressed air
C.a decrease in compressor capacity
D.no immediate loss of the compressed air capacity
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A.The density of the air entering the compressor
B.The temperature of the air entering the compressor
C.The designed rotating speed of the compressor
D.A leaking head gasket
A.Differential
B.Trunk
C.Barrel
D.Valve-in-head
A.return to a neutral position
B.flood the evaporator
C.open
D.close
A.control air system
B.forced draft air system
C.supply air system
D.ships service air system
A.dehydrated
B.purged
C.plugged
D.evacuated
A.combustion control air system
B.supply air system
C.ships service air system
D.low pressure deck air system
A.dry bulb temperature
B.wet bulb temperature
C.saturation temperature
D.water vapor superheat
A.The follow-up gear
B.The rudder angle indicator
C.The synchronous electric transmitter
D.A rudder angle limit switch
A.apparent slip
B.tree slip
C.pitch
D.propulsive efficiency
A.two or more impellers housed together in one casing and mounted on a single shaft
B.a single stepped impeller mounted in a progressively staged casing
C.a large radial clearance between the impeller and casing to prevent overheating due to
D.an increase in the discharge velocity of the liquid with a corresponding decrease in pressure through the stages
最新试题
An internal bypass is provided on some hydraulic system suction strainers to help reduce the possibility of ().
Thermostatic expansion valves can be adjusted for ().
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 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?()
The rate of heat transfer between the hot and cold fluids passing through a shell-and-tube type heat exchanger will ().
A pressure drop through the refrigerant liquid line may cause ().
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?()
The general purpose of a heat exchanger is to ().
The rate of heat transfer from a hot region to a cold region is affected most by the ().