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
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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
A.immediately stop
B.immediately maneuvering
C.immediately anchoring
D.immediately going astern
A.making headway
B.making no headway
C.moored to a buoy
D.at anchor
最新試題
All fog signals shall be sounded every two minutes with the exception of a vessel().
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().
As defined in the Rules,a towing light is a yellow light having the same characteristics as a(n)().
On entering from seaward,a starboard side daymark will().
If your vessel were proceeding down river (descending),a green square marker with a green reflector border on the right bank would be a().
Approaching an anchorage in fog,you hear one short,one prolonged,and one short blast in that sequence on a ship’s whistle. This indicates().
A power-driven vessel,when towing astern,shall show().
The duration of a prolonged blast of the whistle is().
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?()