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
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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
A.a vessel restricted in her ability to maneuver
B.a vessel under command
C.a passenger ship
D.a seaplane on the water
A.three masthead lights in a vertical line instead of either the forward or after masthead light
B.two masthead lights in a vertical line instead of either the forward or after masthead lights
C.two towing lights in a vertical line at the stern
D.a small white light aft of the funnel
最新試題
A vessel towing is showing three forward white masthead lights in a vertical line. This means that the length of the（）.
If your vessel were proceeding down river (descending)，a green square marker with a green reflector border on the right bank would be a（）.
Entering from seaward，triangular-shaped daymarks are used to mark（）.
An all-round flashing yellow light may be exhibited by a(n)（）.
A power-driven vessel，when towing astern，shall show（）.
Environmental loading consists of the forces caused by wind，waves，and（）.
A vessel towing where the tow prevents her from changing course shall carry（）.
The International Regulations for Preventing Collisions at Sea contain the requirements for （）.
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?（）.
The prohibition against displaying lights which may be confused with required navigation lights applies（）.