單項(xiàng)選擇題One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is()

A.seal water supply be cut off
B.make up water supply be cut off
C.oil outlet valve closed or not open sufficiently
D.the flow rate of oily water is too much


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2.單項(xiàng)選擇題If separating effect is not good, which measure should be taken ()

A.working at intervals and properly heating
B.warming up to 70℃, increase water supply flow
C.improving impulse of water supply
D.reducing water supply flow

3.單項(xiàng)選擇題Engine parameters shall be corresponded to NOx Technical Files. This is required by ()

A.MARPOL Annex Ⅲ
B.MARPOL Annex Ⅵ
C.MARPOL Annex Ⅴ
D.MARPOL Annex Ⅳ

4.單項(xiàng)選擇題Under MARPOL Code the ship to which it applies has to carry ()

A.an International Ship Security Certificate
B.an International Oil Pollution Certificate
C.a Safety Management Certificate
D.an International Ballast Water Management Certificate

5.單項(xiàng)選擇題Which one is NOT the ‘clear grounds’ for a more detailed inspection?()

A.the master and the chief engineer are unable to communicate effectively
B.serious corrosion on the hull
C.damaged sanitary pump
D.one page missing in the oil record book

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