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A tug is "in irons" when held in a fixed position by ______.
A.the weight of its tow,its being anchored,or grounded
B.the weight of its towing hawser on the bottom
C.an adverse current
D.lack of power or an engine breakdown
参考答案
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单选题A tug is “in irons” when held in a fixed position by()A
the weight of its tow,its being anchored,or groundedB
the weight of its towing hawser on the bottomC
an adverse currentD
lack of power or an engine breakdown
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is easy to connectB
provides an effective catenary and absorbs shock due to its weightC
makes rigging a swivel unnecessaryD
prevents the tow from yawing by the drag of the chains in a seaway
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rudder boundB
being tripped by the towlineC
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shot lineC
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list the tow to windwardD
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a mechanical breakdown on the tugB
adverse tidal current conditionsC
the tug reducing its speedD
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