单项选择题
Which statement is TRUE concerning hawser towing? （）
A.The catenary in a hawser should be sufficient so that the hawser just touches the bottom
B.The hawser is of sufficient length for towing when taut between tug and tow
C.Increasing speed usually increases the catenary in the hawser
D.Shortening the tow hawser generally decreases the maneuverability of the tug
相关考题
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单项选择题
Which statement is TRUE concerning a towing vessel which，due to the nature of her work，is unable to keep out of the way of another vessel?（）
A.By day，she shall carry a black cylinder shape
B.By day，she shall carry two black balls in a vertical line
C.By night，she would show the same lights as a vessel not under command
D.By day，she would show the same shapes as a vessel restricted in her ability to maneuver -
单项选择题
Which statement concerning maneuvering in restricted visibility is FALSE?（）.
A.A vessel which cannot avoid a close-quarters situation with a vessel forward of her beam shall reduce her speed to bare steerageway
B.A vessel which hears a fog signal forward of her beam shall stop her engines
C.A vessel which hears a fog signal forward of the beam shall navigate with caution
D.If a vessel determines by radar that a close-quarters situation is developing，she shall take avoiding action in ample time -
单项选择题
Which statement concerning an automatic towing engine is FALSE? （）
A.It automatically maintains tow line tension
B.It prolongs the life of the hawser by distributing chafing as the hawser is paid out and taken in
C.As tension on the hawser increases，more line is taken in by the automatic towing engine
D.As tension on the hawser decreases，more line is taken in by the automatic towing engine
