A.Engaged in fishing
B.Mine sweeping
C.A pilot boat
D.Under sail
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A.To avoid immediate danger
B.When authorized by the rig superintendent
C.To comply with an operator's requirement
D.Under no conditions
A.alter course to starboard and pass port to port
B.alter course to port and pass starboard to starboard
C.decide on which side the passage will occur by matching whistle signals
D.slow to bare steerageway
A.Two masthead lights
B.One masthead light and a sidelight
C.Both sidelights
D.Stern light only
A.Each vessel should show sidelights
B.Each vessel should show at least one white light
C.The barges should be lighted as separate units
D.The barges should be lighted as one vessel
A.Radiation fog
B.Frontal fog
C.Convection fog
D.Advection fog
最新試題
You hear the fog signal of another vessel forward of your beam.Risk of collision may exist.You MUST（）.
You are on a vessel that cannot comply with the spacing requirement for masthead lights.What is required in this situation（）.
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（）.
When one upbound vessel is overtaking another vessel and both are pushing a tow ahead，what reaction may you expect（）.
Underway at night，a vessel displaying the lights shown is（）.
When underway in a channel，you should keep to the（）.
When two vessels are in sight of one another and NOT in or near an area of restricted visibility，any of the following signals may be given EXCEPT（）.
Which display indicates a vessel conducting mineclearance operations（）.
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（）.
When visibility is restricted（），we can say it is restricted visibility.