On a vessel，multiplying a load’s weight by the distance of the load’s center of gravity above the baseline results in a(n)（）.

On a semisubmersible ship，reserve buoyancy is increased by the presence of void spaces above the waterline in the（）.

A.submerged hulls
B.quarters
C.columns and upper structure
D.submerged connecting structures

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My drafts are 28 feet（）and 29 feet aft.

A.fore
B.advance
C.before
D.beforehand

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