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
The term of Landfall means（）.
Which statement is TRUE in an overtaking situation（）.
Which vessel would display a cone，apex downward（）.
A sailing vessel shall not impede the safe passage of a（）．
You are running parallel to the coast and estimate that the current is against you.In plotting a running fix using bearings from the same object on the coast，the greatest safety margin from inshore dangers will result if what speed is used to determine（）.
When towing in an open seaway，it is important to use a towing line（）.
You are entering an east coast port and see a buoy with a yellow triangle painted on it.This indicates（）.
You are approaching a vertical lift bridge.You know the span is fully open when（）.
When liquid is free to move transversely in a tank，the effect is called（）.
Preferred channel marks are aids to navigation which all following marks other than（）．