A.black and green bands
B.red and green bands
C.red and yellow bands
D.yellow and green bands
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A.channel junctions
B.bifurcations
C.fishing traps
D.wrecks or obstructions
A.an anti-clockwise direction around land masses
B.a clockwise direction around land masses
C.an anticlockwise direction around sea masses
D.a clockwise direction around sea masses
A.the lantern panes of unattended lights may not become covered with ice or snow
B.the lantern panes of unattended lights may become covered with ice or snow
C.ice or snow is likely caused colored
D.the white lights are likely caused to appear colored
A.enter the traffic separation zone in an emergency
B.cross a traffic lane
C.engage in fishing in the separation zone
D.proceed in an inappropriate traffic lane
A.power-driven vessel following a traffic lane
B.pilot vessel enroute to a pilot station
C.law enforcement vessel
D.All of the above
最新試題
When attempting an upstream landing while pushing empty barges ahead in a hard onshore wind，the approach is best made（）.
The term of Landfall means（）.
When using the anchor to steady the bow while approaching a dock you must be aware of the fact that（）.
In the absence of a route leading from seaward，the conventional direction of buoyage generally follows（）.
Which vessel would display a cone，apex downward（）.
You are approaching a vertical lift bridge.You know the span is fully open when（）.
You are steaming in a westerly direction along the Gulf Coast.You see ahead of you a lighted buoy showing a red isophase light.Which action should you take（）.
Which nautical charts are intended for coastwise navigation outside of outlying reefs and shoals（）.
A vessel shall not（）.
When towing in an open seaway，it is important to use a towing line（）.