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单选题
When installed for bilge pumping or ballast duty, centrifugal pumps require a （） to remove air from the suction pipe.
A
air chamber
B
head lank
C
primer
D
prime mover
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淡水注入管（）A、fresh water filling pipeB、sea water filling pipeC、ballast water filling pipeD、bilge water filling pipe
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单选题Where tanks are arranged for either oil or ballast, （） must be fitted in the pipeline.A
a change-over chestB
a head tankC
a emergency bilge pumpD
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单选题With UMS, when the engine room is unwatched （） will control the main engine.A
the bridge officer on watchB
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单选题The bilge pump on a fishing vessel（）.A
must be fixed if the vessel exceeds 12 meters in lengthB
may be used as a fire pumpC
must be portable if there are more than 4 watertight compartmentsD
must be capable of pumping at least 450 gpm
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单选题（） is used for washing and drinking.A
The ballast systemB
The salt water systemC
The bilge systemD
The domestic system
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单选题Permission is kindly （） about 1000 tons of clean sea water ballast，as and when required for trimming purposes．A
requested to pump outB
requested pumping outC
requesting to pump outD
requesting pumping out
考题
单选题An emergency bilge pumping system is provided and should be （） of the main bilge pumping system, according to the SOLAS 74 Convention.A
dependentB
in dependentC
in seriesD
in parallel
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单选题Upon arrival at a port, a vessel is not allowed （） her ballast water, tanker washings or bilge water and other oily water at will.A
to dischargeB
to be dischargedC
dischargingD
being discharged
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单选题Accidental flooding of the engine room bilges by the bilge main is prevented by （）.A
stop-check valves installed in the bilge manifoldsB
using a positive displacement reciprocating bilge pumpC
installing eductors in all bilge rose boxesD
installing a swing check before each bilge valve
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单选题During the PSC inspection, under the provisions of SOLAS 74, which one may not be regarded as clear grounds for ships’ detainment?（）A
failure of the proper operation of emergency generatorB
insulation of piping including exhaust pipes in engine room contaminated by oilC
improper operation of bilge of bilge of bilge pumping arrangementsD
damaged sanitary pump
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单选题The fire pumps must be capable of delivering a total quantity of water at a defined head, not less than （） of the total bilge pumping capacity.A
one-thirdB
two-thirdsC
one-fourthD
two-fourths
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单选题Which statement is TRUE concerning the placard entitled Discharge of Oil Prohibited（）.A
It is required on all vesselsB
It may be located in a conspicuous place in the wheelhouseC
It may be located at the bilge and ballast pump control stationD
All of the above
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单选题A compound gauge is typically installed on the （）.A
suction side of a bilge pumpB
exhaust manifold of an auxiliary dieselC
discharge line from an air compressorD
chemical feed tank of an evaporator
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a fixed piping system for ballast discharge to a reception facilityB
a discharge outlet for the ballast system on each side of the weather deckC
one portable adapter for a shore connection to the ballast lineD
All of the above
考题
单选题Oil water separators are used to ensure that ships don’t discharge oil when （） bilge water.A
to pump offB
being pumpedC
pumping outD
it pumping out
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