A.bottom
B.top
C.center
D.periphery
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A.by cooling sea water
B.by heating sea water
C.by evaporation of sea water
D.by purifying sea water
A.temperature
B.water level
C.pressure
D.rate of flow
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
最新試題
The usual symptoms of cavitation in a centrifugal pump is （）.
Which of the listed pumps is NOT a positive displacement pump?（）
The output volume of a positive fixed displacement pump can be changed only by （）.
The rate of heat transfer from a hot region to a cold region is affected most by the （）.
A pressure drop through the refrigerant liquid line may cause （）.
Heavy wear in a particular area of the inner circumference of a packing ring may be caused by （）.
Thermostatic expansion valves can be adjusted for （）.
A grease gun is generally used to lubricate a （）.
Which of the following statements is correct concerning heat transfer?（）
An internal bypass is provided on some hydraulic system suction strainers to help reduce the possibility of （）.