A.temperature
B.water level
C.pressure
D.rate of flow
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A.engine
B.sea water pump
C.cylinder cooler
D.fresh water generator
A.fresh water
B.vapor
C.mixture
D.liquid
A.temperature
B.pressure
C.velocity
D.heat
A.symptoms
B.samples
C.traces
D.tracks
A.expand
B.evaporate
C.condense
D.distil
最新試題
A grease gun is generally used to lubricate a （）.
A pressure drop through the refrigerant liquid line may cause （）.
One cause of high head pressure occurring in a refrigeration system can be （）.
Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?（）
The general purpose of a heat exchanger is to （）.
A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by （）.
Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by （）.
Which of the listed pumps is NOT a positive displacement pump?（）
Heavy wear in a particular area of the inner circumference of a packing ring may be caused by （）.
Which of the following statements is correct concerning heat transfer?（）