单项选择题
If the weights are concentrated in the middle part，then（）will happen on board the ship.
A.hogging
B.stiffness
C.sagging
D.listing
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相关考题
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单项选择题
If a vessel is sagging，what kind of stress is placed on the sheer strake?（）
A.Compression
B.Tension
C.Thrust
D.Racking -
单项选择题
Frames to which the tank top and bottom shell are fastened are called（）.
A.floors
B.intercostals
C.stringers
D.tank top supports -
单项选择题
Floors aboard ship are（）.
A.frames to which the tank top and bottom shell are fastened on a double bottomed ship
B.transverse members of the ships frame which support the decks
C.longitudinal beams in the extreme bottom of a ship from which the ship's ribs start
D.longitudinal angle bars fastened to a surface for strength
