A.A capstan
B.A hold
C.A warp end
D.A mooring drum
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A.The compressed air
B.The compressing air
C.The transfer pump
D.The head tank
A.reciprocating
B.diffuser
C.turbine
D.vane
A.lower than
B.higher than
C.below
D.equal to
A.fire-tubes
B.furnaces
C.down-comers
D.soot-blowers
A.The domestic water
B.Bilge water
C.Oil transfer
D.The ballast
最新試題
The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its （）.
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 （）.
The output volume of a positive fixed displacement pump can be changed only by （）.
If the suction pressure at the refrigeration compressor is below normal, the cause can be（）.
Which of the listed pumps is NOT a positive displacement pump?（）
Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?（）
An excessive charge of refrigerant in an air-cooled refrigeration system can cause （）.
Who is responsible for ensuring that someone is assigned to close the watertight doors in an emergency?（）
A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by （）.