单项选择题

A semisubmersible with a positive GM，and TCG located starboard of the centerline，inclines to an angle of（）.

A.heel
B.trim
C.list
D.loll

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单项选择题

A semisubmersible with a negative GM flops to an angle of（）.

A.heel
B.trim
C.list
D.loll

单项选择题

A semisubmersible which flops between forward and aft angles of trim is likely to have（）.

A.KML less than KGL
B.an off-center LCG
C.LCG greater than LCB
D.KML greater than KMT

单项选择题

A semisubmersible rig under tow should be ballasted down if（）.

A.motion begins to be excessive
B.water begins to break over the pontoons
C.period of roll exceeds 12 seconds
D.forward progress is halted by head wind