单项选择题

The approval period for a shipboard oil pollution emergency plan expires after （）.

A.one year
B.two years
C.four years
D.five years

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单项选择题

The Oil Record Book must be maintained onboard the vessel for （）.

A.not less than 3 years and be readily available for inspection
B.6 months and then submitted to the nearest Marine Safety Office for review
C.an annual inspection
D.the duration of the ships active employment

单项选择题

Which of the following operations aboard a tanker must be recorded in the Oil Record Book（）.

A.Any internal transfer of oil cargo during a voyage
B.The discharge overboard in port or at sea of any bilge water accumulated in machinery spaces
C.The loading or unloading of any or all oil cargo
D.All of the above

单项选择题

For an upright vessel, draft is the vertical distance between the keel and the （）.

A.waterline
B.freeboard deck
C.Plimsoll mark
D.amidships section