單項選擇題

Forty-five fathoms is marked on the anchor chain by（）.

A.one turn of wire on the first stud from each side of the detachable link
B.two turns of wire on the second stud from each side of the detachable link
C.three turns of wire on the third stud from each side of the detachable link
D.four turns of wire on the fourth stud from each side of the detachable link

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單項選擇題

Forces within a drilling unit have caused a difference between the starboard and port drafts. This difference is（）.

A.list
B.heel
C.trim
D.flotation

單項選擇題

For the purpose of training and drills，if reasonable and practicable，rescue boats on an OSV must be launched with their assigned crew（）.

A.once a week
B.once a month
C.once a year
D.twice a year

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Forty-five fathoms is marked on the anchor chain by（）.

你可能感興趣的試題

Forces within a drilling unit have caused a difference between the starboard and port drafts. This difference is（）.

For the purpose of training and drills，if reasonable and practicable，rescue boats on an OSV must be launched with their assigned crew（）.

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For the purpose of training and drills，if reasonable and practicable，rescue boats on an OSV must be launched with their assigned crew（）.