单项选择题

What is used as an indicator of initial stability? （）

A.GM
B.KG
C.KM
D.GZ

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单项选择题

What is the stability term for the distance from the center of gravity (G) to the Metacenter (M)，when small-angle stability applies? （）

A.metacentric height
B.metacentric radius
C.height of the metacenter
D.righting arm

单项选择题

What is the principal danger from the liquid in a half full tank onboard a vessel?（）

A.Corrosion from the shifting liquid
B.Rupturing of bulkheads from the shifting liquid
C.Loss of stability from free surface effect
D.Holing of the tank bottom from the weight of the shifting liquid