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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 year
B
working at intervals
C
renewing filtration material
D
pumping bilge water from different layers respectively
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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
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考题
单选题The （）pump is usually used as the bilge feed pump to an oily water separator.A
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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
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考题
单选题Which of the following is wrong about operation of oily water separator?（）A
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keep air cushion in oil collecting space during runningC
check oil level during runningD
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separating effect becomes badC
inner wall is contaminatedD
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exhaust gas boilerC
incineratorD
fresh water generator
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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If separating effect is not good, we can improve it by （）A
flushing separator with hot waterB
increasing water supply flowC
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考题
单选题In which case is the IOPP Certificate of an inspected vessel NOT invalidated? （）A
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考题
单选题Which of the following liquids can ordinarily be discharged overboard without being processed through an oily water separator?（）A
Cargo tank ballastB
Segregated ballastC
Engine room bilgesD
Cargo pump room bilges
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