A.One
B.Two
C.Three
D.Four
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A.white light
B.red light
C.yellow light
D.blue light
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
最新試題
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?（）.
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（）.
An inconspicuous，partly submerged vessel or object being towed，where the length of tow is 100 meters，shall show（）.
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（）.
Entering from seaward，triangular-shaped daymarks are used to mark（）.
According to the Rules，when should lights be displayed?（）.
A single towing light will be carried above a vessel’s sternlight（）.
A power-driven vessel towing another vessel astern (tow less than 200 meters) shall show （）.
At sea，you are approaching a small vessel and see that it has the signal flag P hoisted. What should you do?（）.
A tug is towing three manned barges in line in fog. The first vessel of the tow should sound （）.