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
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.
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 （）.
Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?（）
If the viscosity of the liquid being transferred remains constant as the discharge pressure increases, the rotary pump （）.
A salinity indicator is used to determine the （）.
A salinity indicator is used to determine the （）.
An excessive charge of refrigerant in an air-cooled refrigeration system can cause （）.
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 （）.