单项选择题

The deck beam brackets of a transversely framed vessel resist（）.

A.hogging stresses
B.sagging stresses
C.racking stresses
D.shearing stresses

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单项选择题

The central longitudinal structural hull strength member of the lower hulls of semisubmersible ship’s is called the（）.

A.stress plate
B.keel
C.rider plate
D.main beam

单项选择题

Support of ship side plating is provided primarily by transverse（）.

A.beams
B.girders
C.frames
D.bulkheads

单项选择题

Structural stress on a ship can be reduced by（）.

A.lessening the effect of environmental forces
B.even and symmetrical variable loading
C.local concentration of heavy consumables
D.increasing the metacentric height