Your vessel is not underway when（）.

单项选择题Your vessel is NOT making way，but is not in any way disabled.Another vessel is approaching you on your starboard beam.Which statement is TRUE（）.

A.Your vessel is obligated to stay out of the way
B.The other vessel must give way，since your vessel is stopped
C.You should be showing the lights or shapes for a vessel not under command
D.You should be showing the lights or shapes for a vessel restricted in her ability to maneuver

单项选择题You see another vessel approaching，and its compass bearing does not significantly change.This would indicate that（）.

A.You are the stand-on vessel
B.Risk of collision exists
C.A special circumstances situation exists
D.The other vessel is dead in the water

单项选择题You see a vessel displaying three lights in a vertical line.The highest and lowest lights are red and the middle light is white.She is also showing a white light at the stern，which is lower than the forward light.It could be a（）.

A.Survey vessel
B.Vessel not under command
C.Vessel aground
D.Pilot vessel with port side to you

单项选择题You see a vessel carrying a black diamond which indicates a（）.

A.vessel towing astern
B.barge pushed ahead
C.vessel towing astern only when the length of her tow exceeds 200 meters
D.this signal does not exist in international waters

单项选择题You hear the fog signal of another vessel forward of your beam.Risk of collision may exist.You MUST（）.

A.Reduce speed to bare steerageway
B.Stop your engines
C.Begin a radar plot
D.All of the above