A、must be fixed if the vessel exceeds 12 meters in length
B、may be used as a fire pump
C、must be portable if there are more than 4 watertight compartments
D、must be capable of pumping at least 450 gpm
更多“The bilge pump on a fishing vessel（）.”相关的问题
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、centrifugal pump is cheaper than reciprocating pump B、the size of centrifugal pump with same capacity is smaller than that of reciprocating pump C、centrifugal pump makes maintenance easier than reciprocating pump does D、all of the above
A、A.bilge well connected to that valve, plus the second bilge well being pumped will be completely emptied B、B.bilge system will lose vacuum and prevent the other bilges from being pumped out C、C.bilge well aft connected to that valve will siphon its contents to the forward bilge wells D、D.discharge pressure will be too high
A、Pump only if the discharge is led to a shore tank or barge B、Pump only during the hours of darkness C、Pump only on the outgoing tide D、Pump only as much as is necessary
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
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
A、stop-check valves installed in the bilge manifolds B、using a positive displacement reciprocating bilge pump C、installing eductors in all bilge rose boxes D、installing a swing check before each bilge valve
A、the filter is clogged B、bilge suction value is clogged C、suction value and discharge value of the pump do not open fully D、screw pump is worn seriously and volumetric efficiency is decreased
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