A.the catenary dragging on the bottom
B.swamping of the tow
C.the tow tending to dive
D.yaw
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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
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
A.is better suited for inland towing
B.resists damage from chafing
C.handles more easily
D.equalizes towing forces better
A.not exceed bare steerageway during the transit
B.take a strain as soon as you can to control the tow
C.come up to speed very slowly and maintain a safe speed
D.come up to speed quickly，then cut back power considerably to ease the strain
A.With the wind from ahead
B.With the wind off the port beam
C.With the wind off the starboard beam
D.With the wind from abaft the beam
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One major advantage of the round turn maneuver in a man overboard situation is that it（）.
A vessel is equipped with a single right-handed screw. With rudder amidships and calm wind，the vessel will most likely back（）.
For the deepest water when rounding a bend in a river，you should navigate your vessel（）.
A vessel travelling down a narrow channel，especially if the draft is nearly equal to the depth of the water，may set off the nearer side. This effect is known as（）.
In twin-screw engine installations while going ahead，maneuvering qualities are most effective when the tops of the propeller blades both turn（）.
If the towing bridle legs are not of equal length（）.
In towing，heaving lines are used for（）.
The catenary（）.
As a vessel falls off the wind from close-hauled to a beam reach，the tendency for the vessel to move sideways through the water will（）.
If a vessel under tow starts jumping on its tow line，the most appropriate action to alleviate the condition is to（）.