A.not under command
B.engaged on pilotage duty
C.restricted in her ability to maneuver
D.engaged in fishing
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A.forward masthead light
B.after masthead light
C.stern light
D.All of the above
A.two red lights at night and two black balls during daylight
B.two red lights at night and three black balls during daylight
C.three red lights at night and two black balls during daylight
D.three red lights at night and three black balls during daylight
A.two all-round red lights in a vertical line
B.anchor lights and sidelights
C.two all-round white lights in a vertical line，sidelights and a stern light
D.two all-round red lights in a vertical line，sidelights，and a stern light
A.white lights are not used
B.red and green lights are not used
C.the signal cannot be mistaken for a signal authorized by the Rules
D.the vessel signals such intentions over the radiotelephone
A.are not the same color as either side light
B.have a lesser range of visibility than the prescribed lights
C.do not impair the visibility or distinctive character of the prescribed lights
D.All of the above
最新試題
A vessel is carrying three lights in a vertical line. The highest and lowest of these are red and the middle light is white. Which statement is always TRUE? （）
A vessel showing a rigid replica of the International Code flag “A” is engaged in（）.
A vessel has a charter party for one voyage to carry a full load of manganese from Durban，South Africa，to Baltimore，Maryland，at a stipulated rate per ton. Which type of contract is involved? （）
A vessel is overtaking when she can see which light(s) of a vessel ahead?（）
A vessel is underway with a work stage rigged over the side. A seaman may work on the stage，but only when（）.
A vessel hearing a fog signal forward of her beam has not determined if risk of collision exists. She shall reduce speed to（）.
A vessel towing a barge astern would show，at the stern（）.
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（）.
A vessel displaying three red lights in a vertical line is（）.
A vessel showing a green light over a white light in a vertical line above the level of the sidelights is（）.