A vessel is not underway when ______.
A. the anchor is dragging
B. the ahchor is used in docking
C. the ahchor is dredging
D. she is at anchor but yawing heavily
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Flame screens are used to ______.
A. contain flammable fumes
B. protect firefightiers from flames
C. prevent flames from entering tanks
D. keep flame and sparks from getting out of an engine’s exhaust system
A vessel’s KG is determined by ______.
A. dividing the total longitudinal moment summation by displacement
B. dividing the total vertical moment summation by displacement
C. multiplying the MTl by the longitudinal moments
D. subtracting LCF from LCB
根据《船舶签证管理规则》，下列有关船舶签证簿的叙述哪些是正确的？Ⅰ.船舶应向船籍港港监申领 Ⅱ.如果同时使用二本签证簿，港监有权将其全部没收 Ⅲ.船舶所有人改变时，应申领新签证簿 Ⅳ.只有港监有权在签证簿上签注
A. Ⅰ～Ⅳ
B. Ⅱ～Ⅳ
C. Ⅰ～Ⅲ
D. Ⅰ、Ⅲ、Ⅳ
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