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单选题
The emergency bilge suction or bilge injection valve is used to prevent （） of the ship.
A
proceeding
B
overloading
C
collision
D
flooding
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Accidental flooding of the engine room bilges by the bilge main is prevented by( ).A.stop-check valves installed in the bilge suction manifoldsB.using a positive displacement reciprocating bilge pumpC.installing educators in all bilge rose boxesD.installing a swing check before each bilge valve
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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
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a emergency bilge pumpD
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单选题（） is used for washing and drinking.A
The ballast systemB
The salt water systemC
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单选题The bilge system has been performing well; however, the aft starboard engine room bilgewell suddenly fails to be pumped outWhich of the following should be done first to determine the cause?（）A
Open the bilge pump for inspectionB
Remove each of the manifold valvesC
Remove only the manifold valve to the affected bilge-wellD
Attempt to pump out another bilge well to determine if the entire system is affected
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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
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单选题If a centrifugal bilge pump were continually operated with the discharge valve closed the （）.A
motor overload would openB
relief valve would openC
pump would eventually overheatD
motor would overheat
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单选题The （）pump is usually used as the bilge feed pump to an oily water separator.A
turbineB
screwC
vaneD
ejector
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单选题Before loading bulk grain，bilge wells must be covered to（）.A
add strength to the bilge well strainerB
permit rapid flow of water to the bilge wellsC
prevent cargo sifting into the bilge wellsD
prevent oil，water，or other liquid from reaching the cargo
考题
单选题All bilge suction must be fitted with suitable （）, which in the machinery space would be mud boxes positioned at floor-plate level for easy access.A
strainersB
valvesC
elementsD
separators
考题
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
考题
单选题The emergency bilge suction or bilge （） is used to prevent flooding of the ship.A
injection valveB
relief valveC
discharge valveD
inlet filter
考题
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
考题
单选题The SOLAS convention about “passenger ship and dried food ship damage control” prescribes that the engine room emergency bilge water suction should connect with （）A
the main S-W pumpB
ballast pumpC
air-conditioning water pumpD
the main S-W pump or ballast pumps that have the biggest output
考题
单选题According to the SOLAS convention, the bilge water system （）A
must connect the bilge well suction directlyB
should not pump out the water accumulated in the cargosC
should not used for emergency drainage in case of ship collisionD
should connect to the fire fighting system directly
考题
单选题An independent bilge suction is required for （）.A
ballast tanksB
sludge tanksC
machinery space bilgesD
cargo hold bilges
考题
单选题If a bilge pump failed to build up discharge pressure, you should check for （）.A
excessive water in the bilgesB
a clogged suction strainerC
oil in the bilgesD
All of the above
考题
单选题When installed for bilge pumping or ballast duty, centrifugal pumps require a （） to remove air from the suction pipe.A
air chamberB
head lankC
primerD
prime mover
考题
单选题If one of the bilge system manifold valves does not properly seat, the （）A
bilge well connected to that valve, plus the second bilge well being pumped will be completely emptiedB
bilge system will lose vacuum and prevent the other bilges from being pumped outC
bilge well aft connected to that valve will siphon its contents to the forward bilge wellsD
discharge pressure will be too high
考题
单选题You are unable to pump out the aft starboard engine room bilge well that is fouled, with one foot of water over the top of the bilge well, what actionshould be carried out?（）A
Send the wiper into the well with only a scoop and pailB
Remove the bilge manifold valve and attempt to back flush the lineC
Simultaneously operate all available bilge pumpsD
It is only necessary to transfer half the contents of a drum of degreaser into the bilge well
考题
单选题If a bilge pump is able to develop vacuum, but is unable to sufficiently pump out the bilges, you would check for all of the following EXCEPT （）.A
the circuit breakerB
for leaks in the suction pipingC
relief valve is not properly seatedD
the suction strainer
考题
单选题One of the consequences in continuing to operate a centrifugal bilge pump with the discharge valve closed, is that the （）.A
motor overload will openB
relief valve will openC
pump will overheatD
motor will overheat
考题
单选题If an operating bilge pump is developing good vacuum, but is unable to discharge any water, which of the following problems is the most probable cause?（）A
The wearing rings are excessively wornB
The suction strainer is cloggedC
The discharge valve is cloggedD
The shaft is worn
考题
单选题The emergency bilge suction valve is typically used （）.A
to inject cleaning additives when the bilges are extremely dirtyB
when the main condenser becomes fouled, in order to provide additional cooling water circulationC
to connect the rose box to the independent bilge suctionD
if the bilges become flooded and they can not be emptied by any other means
考题
单选题The major difference between the discharge and suction valves installed in most low pressure, reciprocating air compressors is that（）A
one valve seats upwards, while the other seats downwardsB
the reed valves used on the discharge are made substantially thicker and heavier than the suction valvesC
the suction valve springs exert a greater tension than the discharge valve springsD
the discharge valve springs exert a greater tension than the suction valve springs
考题
单选题A bilge suction line，in a fishing vessel with more than 16 individuals aboard，must have a strainer with an open area not less than how many times the open area of the suction line?（）A
oneB
twoC
threeD
four
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