A.channel junctions
B.bifurcations
C.fishing traps
D.wrecks or obstructions
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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
A.special marks
B.isolated danger marks
C.cardinal marks
D.fore and aft marks
最新試題
Your ship is in shallow water and the bow rides up on its bow wave while the stern sinks into a depression of its transverse wave system.What is this called（）.
When approaching Block Island Sound from Long Island Sound，you will enter waters governed by the International Rules of the Road when you（）.
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（）.
In regions where ice conditions prevail in the winter，（）.
Which instrument is used to predict the approach of a low pressure system（）.
When towing astern，increased catenary will（）.
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（）.
You are running parallel to the coast and take a running fix using bearings of the same object.If you are making less speed than used for the running fix，in relation to the position indicated by the fix，you will be（）.
Which nautical charts are intended for coastwise navigation outside of outlying reefs and shoals（）.