A、A.on the outgoing tide
B、B.overboard after dark
C、C.overboard through an oily water separator
D、D.anytime in an emergency, i-emain engine lube oil failure
更多“Bilges may be pumped （）.”相关的问题
A、pump must always be primed B、volute must impart a radial and rotary motion of the water suction side C、connection must guide the liquid to the lantern rings D、stuffing box should not be allowed any water leakage
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
A、one fixed power pump and one portable hand pump B、one fixed hand pump and one portable hand pump C、two portable hand pumps D、either "A" or "B"
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、increased pump speed B、excessive pump discharge pressure C、too low of a tilting box angle D、low pump speed
A、excess amount of oily-water mixtures in bilges B、insulation of piping including exhaust pipes in engine room contaminated by oil C、improper operation of bilge pumping arrangements D、there were an actual emergency
A、excess amount of oily-water mixtures in bilges B、insulation of piping including exhaust pipes in engine room contaminated by oil C、improper operation of bilge pumping arrangements D、paint peering off the uptake
A、keep them dry when the bilges are full of water B、keep them cool when the vessel is underway C、make them more accessible for repairs D、prevent accidental ignition of any gasoline vapors that may have accumulated in the bilges
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