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
Catenary as applied to tow lines denotes the（）.
A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall，when making way，exhibit（）.
In twin-screw engine installations while going ahead，maneuvering qualities are most effective when the tops of the propeller blades both turn（）.
If a vessel under tow starts jumping on its tow line，the most appropriate action to alleviate the condition is to（）.
If the towline parts，you should（）.
The distance that a vessel travels from the time that the order to put engines full astern until the vessel is dead in the water is known as（）.
Once a towline is connected between the towing vessel and the disabled vessel，the towing vessel should（）.
The best method to secure a tow line to a cleat is to（）.
If the towing bridle legs are not of equal length（）.
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（）.