A.The compressed air
B.The compressing air
C.The transfer pump
D.The head tank
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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
A.A cut-off lever
B.A swivel block
C.A cross-head
D.A driving gear
最新試題
An internal bypass is provided on some hydraulic system suction strainers to help reduce the possibility of （）.
If the head pressure of a reciprocating refrigeration compressor is excessive, （）.
If the relief valve on the discharge side of a hydraulic pump lifts, the cause could be （）.
The control mode in which the final control element is moved from one of two flexed positions to the other is known as （）.
A grease gun is generally used to lubricate a （）.
Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?（）
A pressure drop through the refrigerant liquid line may cause （）.
If the viscosity of the liquid being transferred remains constant as the discharge pressure increases, the rotary pump （）.
The usual symptoms of cavitation in a centrifugal pump is （）.
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.