题目内容
（请给出正确答案）
If a bilge pump failed to build up discharge pressure, you should check for _____.
A.excessive water in the bilges
B.a clogged suction strainer
C.oil in the bilges
D.All of the above
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更多“If a bilge pump failed to build up discharge pressure, you should check for _____.A.excess”相关的问题
The ____pump is usually used as the emergency bilge pump.
A.turbine
B.screw
C.vane
D.ejector
A.transfer pump
B.a bilge pump
C.a service pump
D.a vacuum pum
The ____pump is usually used as the bilge feed pump to an oily water separator.
A.turbine
B.screw
C.vane
D.ejector
Accidental flooding of the engine room bilges by the bilge main is prevented by().
A.stop-check valves installed in the bilge suction manifolds
B.using a positive displacement reciprocating bilge pump
C.installing educators in all bilge rose boxes
D.installing a swing check before each bilge valve
A.a transfer pump
B.a bilge pump
C.a service pump
D.a vacuum pump
A centrifugal bilge pump requires priming _____.
A.primarily to lubricate the shaft seals
B.due to the inability of this type of pump to lift water to cover the suction (eye) of the impeller
C.to initially unload the pump by having its head pressure equal to discharge pressure
D.in order to overcome the potential energy of water in the discharge line
A.Open the bilge pump for inspection
B.Remove each of the manifold valves
C.Remove only the manifold valve to the affected bilge-well
D.Attempt to pump out another bilge well to determine if the entire system is affected
A.the main S.Wpump
B.ballast pump
C.air-conditioning water pump
D.the main S.Wpump or ballast pumps that have the biggest output
A.the circuit breaker
B.for leaks in the suction piping
C.relief valve .is not properly seated
D.the suction strainer
A.Send the wiper into the well with only a scoop and pail
B.Remove the bilge manifold valve and attempt to back flush the line
C.Simultaneously operate all available bilge pumps
D.It is only necessary to transfer half the contents of a drum of degreaser into the bilge well
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