单项选择题
An oil tanker operating with dedicated clean ballast tanks shall be equipped with（），approved by the Administration on the basis of specification recommended by the Organization，to enable supervision of the oil content in ballast water being discharged.
A.an oil content meter
B.an oil checker
C.an analyzer of oil content
D.a mixer of oily water
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相关考题
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单项选择题
Air gap is the vertical distance between the bottom of the hull and the（）.
A.still water level
B.wave crest
C.wave crest plus the charted water depth and tidal corrections
D.wave crest plus the charted water depth and tidal correction and storm surge -
单项选择题
According to regulations，access to a cargo pumproom in a tanker carrying grades C or D liquid cargo shall be（）.
A.from areas equipped with power ventilation
B.only from enclosed areas free from sources of vapor ignition
C.from the open deck
D.from within the vessel -
单项选择题
Access to a cargo pumproom on a tanker carrying grades A，B，C or D liquid cargoes shall be（）.
A.at least 13.1 feet away from the galleys，living quarters or navigation spaces
B.from the open deck
C.only from areas equipped with power ventilation systems
D.isolated from any part of the vessel which normally contains sources of vapor ignition
