单项选择题
A vessel must proceed at a safe speed（）.
A.in restricted visibility
B.in congested waters
C.during darkness
D.at all times
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相关考题
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单项选择题
A vessel is proceeding from a very cold climate to a warm climate.With a cargo of non-hygroscopic nature，which of the following is correct?（）.
A.There is danger of heavy cargo sweat if outside air is introduced by ventilation
B.Danger of the ship sweat exists.Constant and vigorous ventilation is required
C.There is little danger of ship's sweat;slight possibility of cargo sweat
D.The possibility of any ship or cargo sweat is remote -
单项选择题
A tug would NOT assist a ship to steer if the tug is made up to the large vessel（）.
A.by a tow line ahead of the vessel
B.forward on either bow of the vessel
C.approximately amidships of the vessel
D.on the vessel's quarter -
单项选择题
A towing vessel is tripped when（）.
A.it is overtaken by the tow
B.it is pulled sideways by the tow
C.the weight of the towing hawser causes loss of maneuverability
D.the propeller is fouled by the towing hawser
