单项选择题

A.through some exceptional circumstance is unable to ma……

A vessel restricted in her ability to maneuver is one which（）.

A.through some exceptional circumstance is unable to maneuver as required by the Rules
B.from the nature of her work is unable to maneuver as required by the Rules
C.due to adverse weather conditions is unable to maneuver as required by the Rules
D.has lost steering and is unable to maneuver

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单项选择题A vessel is in sight of another vessel when she（）.

A.can be observed by radar
B.has determined that risk of collision exists
C.is sounding a fog signal which can be heard on the other vessel
D.can be observed visually from the other vessel

单项选择题A vessel is in sight of another vessel when（）.

A.she can be observed by radar
B.she can be observed visually from the other vessel
C.she can be plotted on radar well enough to determine her heading
D.her fog signal can be heard

单项选择题A vessel is approaching from dead ahead． Both of her sidelights are visible and her range lights are in line. Which of the following could you do first?（）.

A.Sound one blast of the whistle
B.Alter course to starboard
C.Construct a radar plot
D.Sound the danger signal

单项选择题A vessel has sustained damage in a collision with another vessel. It is necessary to have a Seaworthy Certificate before the vessel sails. Who will issue this certificate?（）

A.American Consul
B.Classification Society
C.Captain of the Port
D.Officer in Charge，Marine Inspection

单项选择题A vessel engaged in fishing underway sounds the same fog signal as a（）.

A.power-driven vessel stopped and making no way through the water
B.vessel being towed
C.vessel restricted in her ability to maneuver at anchor
D.sailing vessel at anchor