单项选择题

All of the following can be determined by use of a stabilogauge EXCEPT（）.

A.metacentric height
B.mean draft
C.moment to trim one inch
D.deadweight

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单项选择题

An unstable upright equilibrium position on a vessel means that the metacenter is（）.

A.lower than the center of gravity
B.at the same height as the center of gravity
C.higher than the baseline
D.on the longitudinal centerline

单项选择题

An upright vessel has negative GM. GM becomes positive at the angle of loll because the（）.

A.free surface effects are reduced due to pocketing
B.KG is reduced as the vessel seeks the angle of loll
C.effective beam is increased causing BM to increase
D.underwater volume of the hull is increased