A.white light
B.red light
C.yellow light
D.blue light
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A.special flashing light
B.anchor light
C.sternlight
D.masthead light
A.only if she is towing astern
B.only if the tow exceeds 200 meters
C.at any time when towing
D.if the towing vessel is part of a composite unit
A.Triangular
B.Diamond
C.Circular
D.Octagonal
A.the centerline of a navigable channel
B.the starboard side of a channel
C.a prominent object of navigational interest that has no lateral significance
D.area of a channel where passing another vessel is permitted
A.two towing lights in a vertical line
B.a towing light in a vertical line above the sternlight
C.two towing lights in addition to the sternlight
D.a small white light in lieu of the sternlight
最新試題
A towing vessel 30 meters in length is pushing barges ahead. How many white masthead lights is the vessel REQUIRED to show at night?（）
Some lights used as aids to marine navigation have a red sector to indicate a danger area. The limits of a colored sector of a light are listed in the Light List in which of the following manners?（）
Environmental loading consists of the forces caused by wind，waves，and（）.
The prohibition against displaying lights which may be confused with required navigation lights applies（）.
An occulting light is one in which（）.
At sea，you are approaching a small vessel and see that it has the signal flag P hoisted. What should you do?（）.
By night，you sight the lights of a vessel engaged in underwater operations. If an obstruction exists on the port side of the vessel，it will be marked by（）.
During the day，a vessel with a tow over 200 meters in length will show（）.
A vessel is fishing at anchor on the high seas. Which of the following day signals should she display if she has gear extending out over 150 meters horizontally from the vessel?（）.
A power-driven vessel underway shall keep out of the way of（）.