单项选择题

The biggest problem you generally encounter while towing a single tow astern is（）.

A.the catenary dragging on the bottom
B.swamping of the tow
C.the tow tending to dive
D.yaw

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单项选择题

The best method to secure a tow line to a cleat is to（）.

A.take a turn around the cleat，then figure-eights，and a half-hitch
B.make figure-eights，followed by a half-hitch，then a figure-eight knot
C.take a turn，a half turn，and a figure-eight
D.take several turns around the cleat only

单项选择题

One major advantage of the round turn maneuver in a man overboard situation is that it（）.

A.is the fastest method
B.is easy for a single-screw vessel to perform
C.requires the least shiphandling skills to perform
D.can be used in reduced visibility

单项选择题

One advantage of chain over wire rope for a tow bridle is that chain（）.

A.is better suited for inland towing
B.resists damage from chafing
C.handles more easily
D.equalizes towing forces better