单项选择题
For an upright vessel，draft is the vertical distance between the keel and the（）.
A.waterline
B.freeboard deck
C.plimsoll mark
D.amidships section
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相关考题
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单项选择题
For a floating vessel，true mean draft is always the（）.
A.average of the observed drafts
B.draft at the center of flotation
C.draft corresponding to the calculated displacement
D.mean of the calculated drafts -
单项选择题
Deballasting a double bottom has what affect on KG?（）
A.KG is increased
B.KG is decreased
C.KG is not affected
D.KG increases at light drafts and decreases at deep drafts -
单项选择题
Although KG for a ship in lightweight is relatively high，the vessel is stiff because（）.
A.KM is small
B.KM is high
C.BL is small
D.KB is large
