A.making headway
B.making no headway
C.moored to a buoy
D.at anchor
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A.Whether she is normally a fishing or a trawling vessel
B.Her gross tonnage
C.Her length
D.The type of gear she carries
A.a diamond shape
B.two cones，apexes together
C.a black ball
D.one cone，apex upward
A.vessel being towed
B.fishing vessel engaged in trawling
C.vessel at anchor warning of her location
D.power-driven pilot vessel on station underway
A.flashes at regular intervals at a frequency of 120 flashes or more per minute
B.is yellow in color
C.is visible over an arc of the horizon of not less than 180°nor more than 225°
D.All of the above
A.A flashing amber light
B.A fixed red light
C.A white flag raised and lowered vertically
D.A flashing white light
最新試題
A single towing light will be carried above a vessel’s sternlight（）.
According to the Rules，when should lights be displayed?（）.
At sea，you are approaching a small vessel and see that it has the signal flag P hoisted. What should you do?（）.
A power-driven vessel towing another vessel astern (tow less than 200 meters) shall show （）.
The prohibition against displaying lights which may be confused with required navigation lights applies（）.
On entering from seaward，a starboard side daymark will（）.
As defined in the Rules，a towing light is a yellow light having the same characteristics as a(n)（）.
An inconspicuous，partly submerged vessel or object being towed，where the length of tow is 100 meters，shall show（）.
Daymarks marking the starboard side of the channel when going towards the sea are（）.
An occulting light is one in which（）.