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單項(xiàng)選擇題

Life preservers must be marked with the（）.

A.stowage space assigned
B.vessel's name
C.vessel's home port
D.maximum weight allowed

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單項(xiàng)選擇題

Lighter longitudinal stiffening frames on the vessel side pating are called（）.

A.stringers
B.side frames
C.side stiffeners
D.intercostals

單項(xiàng)選擇題

Line throwing equipment should not be operated（）.

A.during a rain storm
B.in an explosive atmosphere
C.near a lifeboat station
D.by other than licensed officers