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
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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
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
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?（）.
A power-driven vessel，when towing astern，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（）.
A safe water daymark has what shape? （）
The duration of a prolonged blast of the whistle is（）.
A triangular daymark would be colored（）.
An inconspicuous，partly submerged vessel or object being towed，where the length of tow is 100 meters，shall show（）.
On entering from seaward，a starboard side daymark will（）.
A red triangular daymark marks（）.
A vessel towing where the tow prevents her from changing course shall carry（）.