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單項選擇題

A wooden float placed between a ship and a dock to prevent damage to both is called a（）.

A.camel
B.dolphin
C.rat guard
D.wedge

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單項選擇題

A term applied to the bottom shell plating in a double-bottom ship is（）.

A.bottom floor
B.outer bottom
C.shear plating
D.tank top

單項選擇題

A strong back refers to a（）.

A.bar securing a cargo port
B.centerline vertical bulkhead
C.deep beam
D.spanner stay

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