單項選擇題

Distress flares and smoke signals for small passenger vessels（）.

A.are not required aboard vessels on runs of less than 30 minutes duration
B.must be Coast Guard approved and stowed in a portable，watertight container
C.must be marked with an expiration date not more than 42 months from the date of manufacture
D.All of the above

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單項選擇題

At night，if you see a vessel ahead displaying the lights shown you should（）.

A.provide assistance as the vessel is in distress
B.stay clear as the vessel is transferring dangerous cargo
C.stay clear as the vessel is fishing
D.change course to the right as the vessel is crossing your bow

單項選擇題

All of the following are recognized distress signals under the Navigation Rules EXCEPT（）.

A.a green star signal
B.orange-colored smoke
C.red flares
D.the repeated raising and lowering of outstretched arms

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Distress flares and smoke signals for small passenger vessels（）.

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At night，if you see a vessel ahead displaying the lights shown you should（）.

All of the following are recognized distress signals under the Navigation Rules EXCEPT（）.

At night，if you see a vessel ahead displaying the lights shown you should（）.