單項(xiàng)選擇題The principal danger from ice collecting on a vessel is the（）.
A.decrease in capabilities of radar
B.decrease in displacement
C.adverse effect on trim
D.loss of stability
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1.單項(xiàng)選擇題Your vessel is approaching a bend. You hear a prolonged blast from around the bend. You should （）.
A.back your engines
B.stop your engines and drift
C.answer with one prolonged blast
D.sound the danger signal
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Topside icing decreases vessel stability because it is usually off-center and（）.
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A towing vessel should be on the crest of a wave at the same time as its tow and in the trough at the same time. The term used to describe this is（）.
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As the weather was worsening and wind force rising to 8，my vessel（）were yawing within forty degrees of the compass.
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Topside icing that blocks freeing ports and scuppers（）.
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When operating in an area where sea ice and icebergs are present，which statement is TRUE? （）
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