单项选择题

An overtaking situation would be one in which one vessel is approaching another from more than how many degrees abaft the beam? （）

A.0°
B.10°
C.22.5°
D.None of the above

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单项选择题

An ocean tow is sinking in deep water. Attempts to sever the towing hawser are unsuccessful. Which action should now be taken? （）

A.Abandon the towing vessel
B.Radio for emergency assistance
C.Slip the towline and allow it to run off the drum
D.Secure all watertight openings on the towing vessel

单项选择题

A wedge of water building up between the bow and nearer bank which forces the bow out and away describes（）.

A.bank cushion
B.bank suction
C.combined effect
D.bend effect