A.forward masthead light
B.after masthead light
C.stern light
D.All of the above
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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
A.wearing a life jacket
B.wearing a safety harness secured to the stage
C.wearing both a life jacket and a safety harness secured to the stage
D.the vessel is not making way
A.Coastwise Articles
B.Foreign Articles
C.Intercoastal Articles
D.no articles
A.Only the stern light of the vessel
B.One sidelight and a masthead light of the vessel
C.Only a sidelight of the vessel
D.The masthead lights of the vessel
A.positive
B.negative
C.zero
D.vertical
A.If the quadrantal spheres are out as far as possible replace them with smaller spheres
B.If the quadrantal spheres are in as far as possible remove one of the spheres
C.If the quadrantal spheres are in as far as possible replace them with smaller spheres
D.If the quadrantal spheres are out as far as possible，move the quadrantal spheres in
A.If the quadrantal spheres are all the way out，replace them with smaller spheres
B.If the quadrantal spheres are all the way in，replace them with larger spheres
C.If the quadrantal spheres are all of the way out，move the spheres in
D.If the quadrantal spheres are all the way out，replace them with larger spheres.
最新试题
A vessel is to make a voyage between New York and San Juan，Puerto Rico，and return. The crew should be signed on（）.
A vessel is considered to be “restricted in her ability to maneuver” under the Rules if she is （）.
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 showing a rigid replica of the International Code flag “A” is engaged in（）.
A vessel is “in sight” of another vessel when（）.
A vessel is overtaking when she can see which light(s) of a vessel ahead?（）
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 green light over a white light in a vertical line above the level of the sidelights is（）.
A vessel is heading magnetic east and its magnetic compass indicates a heading of 086°. Which action should be taken to remove this error during compass adjustment?（）
A vessel is inclined at an angle of loll. In the absence of external forces，the righting arm (GZ) is（）.