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单选题
The pump used to send the bilge water into the oily water separator（）the mixture because this might create finer oil particles.
A
should agitate
B
should not agitate
C
should mix up
D
should not add up
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When started, a complete oily water separating unit is first filled ______. The oily water mixture is then pumped through the inlet pipe into the coarse separating compartment.A.with dirty waterB.with clean waterC.by oily waterD.by mixed water
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单选题Which of the following pumps will most affect oily water separator performance and give the worst result?（）A
reciprocating pumpB
vane pumpC
screw pumpD
centrifugal pump
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单选题Which of the following pumps is most suitable for an oily water separator?（）A
reciprocating pumpB
vane pumpC
mono pumpD
axial-flow pump
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单选题The following measures can be used to improve oily water separator’s separating effect except （）A
overhauling every two yearB
working at intervalsC
renewing filtration materialD
pumping bilge water from different layers respectively
考题
单选题（） is used for washing and drinking.A
The ballast systemB
The salt water systemC
The bilge systemD
The domestic system
考题
单选题Which of the equipment listed is most effective in processing bilge slops for overboard discharge?（）A
100PPM oily water separatorB
Assembling the lube oil purifier as a separator and aligning bilge overboardC
A 15PPM oily water separatorD
A magnetic duplex strainer
考题
单选题A centrifugal bilge pump requires priming （）.A
primarily to lubricate the shaft sealsB
due to the inability of this type of pump to lift water to cover the suction (eye) of the impellerC
to initially unload the pump by having its head pressure equal to discharge pressureD
in order to overcome the potential energy of water in the discharge line
考题
单选题The （）pump is usually used as the bilge feed pump to an oily water separator.A
turbineB
screwC
vaneD
ejector
考题
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
考题
单选题A new ocean going ship of 2000 gross tons having an inoperative oily water separator may dispose of its bilge slops by （）.A
holding its slops onboard until they can be pumped into the city sewer systemB
circulating them through the lube oil purifier to remove water and debrisC
holding its slops onboard until they can be discharged to a shore side reception facilityD
pumping them into a settling tank for separation before pumping the oily water residue overboard
考题
单选题Which pump installation would require an external source of sealing water?（）A
Main circulator pump jacket water coolingB
Salt water service pumpC
Auxiliary condensate pumpD
Bilge pump
考题
单选题During inspection of oil and oily mixtures from machinery spaces, which of the following factors should be taken into account by the PSCO? （）A
The quantity of oil residues generatedB
The capacity of sludge and bilge water holding tankC
The capacity of the oily water separatorD
All of the above
考题
单选题When oily water separator is operating, which measure （） is wrong.A
pay attention to operating parametersB
renew and clean separating units in timeC
check oil level in separator to prevent overloadD
check separating effect, if it is bad, flush with large capacity water pump
考题
单选题The pressure difference of the gauge on the oily water separator increases greatly, the reason is（）A
the filter is cloggedB
bilge suction value is cloggedC
suction value and discharge value of the pump do not open fullyD
screw pump is worn seriously and volumetric efficiency is decreased
考题
单选题An oil water monitor is required in order to measure （）.A
the oil content in waterB
the water content in fuel oilC
the water level in bilge wellD
the oil level in bilge well
考题
单选题After stopping oily water separator, sea water should be permitted for （） minutes,（）should be closed after stopping pump to reduce oxidation corrosion of inner wall.A
15；inlet valueB
15；inlet and outlet valueC
30；inlet valueD
30；inlet and outlet value
考题
单选题Before the oily water separator put into operation, it should be （）A
filled with bilge waterB
filled with oilC
filled with clean waterD
be emptied
考题
单选题The most suitable pump for oily water separator feed duties is （）.A
a reciprocating pumpB
a vane pumpC
a centrifugal pumpD
a triple screw pump
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 started, a complete oily water separating unit is first filled （）The oily water mixture is then pumped through the inlet pipe into the coarse separating compartment.A
with dirty waterB
with clean waterC
by oily waterD
by mixed water
考题
单选题Because the flow rate of supply water pump is too large, oily water separator does not work wellWhich of the following is not the reason?（）A
the monitoring equipment is out of orderB
separating effect becomes badC
inner wall is contaminatedD
separating effect becomes bad and inner wall is contaminated
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
考题
单选题（）are used to ensure that ships don’t discharge oil when pumping out oily water from any oil contaminated space.A
BoilerB
IncineratorC
Oily water separatorD
Sewage treatment unit
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