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單項選擇題

Between the side frames on a vessel, support for the deck beams is provided by（）.

A.stanchion
B.brackets
C.web frames
D.deck stringers

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單項選擇題

Bilge keels are fitted on ship to（）.

A.assist in drydock alignment
B.improve the vessel's stability
C.protect the vessel from slamming against piers
D.reduce the rolling of the vessel

單項選擇題

Bilge keels are more effective at clampening rolls as the（）.

A.pitching increases
B.list increases
C.rolling increases
D.dreft increases

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