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单选题
The （）is fitted on an oily water separator.
A
sliding bowl bottom
B
gravity disc
C
bowl
D
liquid level detector
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更多 “单选题The （）is fitted on an oily water separator.A sliding bowl bottomB gravity discC bowlD liquid level detector” 相关考题
考题
A centrifuge arranged to separate two liquids is known asA.an oily water separatorB.a purifierC.a centrifugal compressorD.a clarifier
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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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The ______is used to burn oil sludge.A.clarifierB.oily water separatorC.incineratorD.distiller
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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
考题
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To assist separation of low viscosity oils steam coils or electric heaters are fitted （） of the oily water separator.A
in entranceB
in exitC
in the upper partD
on the outside
考题
单选题Bottom blow valves are installed on auxiliary water-tube boilers to （）A
remove suspended and precipitated solids from the boiler waterB
completely drain the boiler in an emergency situationC
prevent hardened scale deposits in the water drumD
remove floating impurities from the oily water surface
考题
单选题The resistance to the movement of the globule in oily water mixture depends on its size and the （） of the fluid.A
pressureB
velocityC
gravityD
viscosity
考题
单选题Large pipes or （） are fitted between the steam and water drums to ensure good natural circulation of water.A
fire-tubesB
furnacesC
down-comersD
soot-blowers
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In an oily water separator the oil will travel （） to the oil collecting spaces.A
upwardsB
downwardsC
outwardsD
forwards
考题
单选题Which of the following statements is correct concerning diesel engine cooling water systems?（）A
Each engine must have its own engine driven cooling water pump capable of providing cooling for all ranges of operationB
propulsion engines with bores exceeding 200 mm are to be fitted with a means to display the cooling water temperature of each cylinderC
At least two independent sea suctions are to be provided for supplying water to the engine jackets or to the heat exchangersD
Suitable strain are to be fitted between the circulating pumps and heat exchangers when sea water is used for direct cooling
考题
单选题A centrifuge arranged to separate impurities and small amounts of water from oil is known as （）.A
an oily water separatorB
a purifierC
a centrifugal compressorD
a clarifier
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The principle of separation by which all commercially available oily water separators function is （） differential between oil and water.A
the temperatureB
the viscosityC
the gravityD
the size
考题
单选题Here some oil in the oily water separator, as a result of its lower （）, will separate and rise into the oil collection space.A
temperatureB
viscosityC
densityD
velocity
考题
单选题One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）A
seal water supply be cut offB
make up water supply be cut offC
oil outlet valve closed or not open sufficientlyD
the flow rate of oily water is too much
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
考题
单选题The cylinder is fitted with internal liner so that a water space is left （） the liner and the outer wall.A
aroundB
amongC
inD
between
考题
单选题A centrifuge arranged to separate two liquids is known as （）.A
an oily water separatorB
a purifierC
a centrifugal compressorD
a clarifier
考题
单选题In which case is the IOPP Certificate of an inspected vessel NOT invalidated? （）A
The required oily-water separator malfunctionsB
The ship is transferred to Liberian registryC
An annual survey is conducted fifteen months after the date of certificate issuanceD
A 15 ppm oily-water separator is replaced by a 100 ppm oily-water separator
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