A.acts as a reserve length of towing hawser when the tug applies more power，and it dampens the surge effect of the tow
B.gives an approximation of the amount of strain on the towing hawser
C.is the dip in the towing hawser between the tug and the tow
D.All of the above
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A.the catenary dragging on the bottom
B.swamping of the tow
C.the tow tending to dive
D.yaw
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
最新試題
In towing，heaving lines are used for（）.
How does the effect known as bank suction act on a single-screw vessel proceeding along a narrow channel?（）.
If a towing vessel and her tow are severely restricted in their ability to change course，they may show lights in addition to their towing identification lights. These additional lights may be shown if the tow is（）.
One advantage of chain over wire rope for a tow bridle is that chain（）.
The catenary（）.
Once a towline is connected between the towing vessel and the disabled vessel，the towing vessel should（）.
If you are the stand-on vessel in a crossing situation，you may take action to avoid collision by your maneuver alone. When may this action be taken?（）.
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（）.
In order for a vessel to be engaged in fishing she must be（）.