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單項選擇題

In any case the draught of the vessel at the（）shall not be less than that which is necessary to obtain full immersion of the propeller.

A.forward perpendicular
B.amidships
C.longitudinal center of floatation
D.after perpendicular

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單項選擇題

In a transversely framed ship，the transverse frames are supported by all of the following EXCEPT（）.

A.girders
B.longitudinals
C.side stringers
D.web plates

單項選擇題

In a longitudinally-framed ship，the longitudinal frames are held in place and supported by athwartship members called（）.

A.floors
B.margin plates
C.stringers
D.web frames

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