A.by long distance
B.by the darkness at night
C.by a vessel in front
D.by fog or falling snow
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A.Middle of the channel
B.Starboard side of the channel
C.Port side of the channel
D.Side of the channel that has the widest turns
A.stay near the middle of the channel
B.keep to the starboard side of any vessels you meet
C.exchange whistle signals with any other vessels in the channel
D.keep to the side of the channel which lies to your starboard
A.a light signal of at least five short and rapid flashes
B.one prolonged，one short，one prolonged，and one short whistle blasts
C.four short whistle blasts
D.two short whistle blasts
A.Make sure the action is taken in enough time
B.Not make any large course changes
C.Not make any large speed changes
D.All of the above
最新試題
When taking action to avoid collision，you should（）.
When one of two vessels（）is required to keep out of the way the other must keep her course and speed.
You are Master of a towing vessel engaged in towing three barges astern.The middle barge of the tow would be required to sound which of the following during restricted visibility （）.
Underway at night，a vessel displaying the lights shown is（）.
Which vessel is NOT classified as “restricted in her ability to maneuver” （）.
Your vessel is not underway when（）.
When a vessel is in any doubt as to whether such a situation exists she shall（）that it does exist and act accordingly.
You are underway and approaching a bend in the channel where vessels approaching from the opposite direction cannot be seen．You should sound（）.
You are aboard the give-way vessel in a crossing situation．What should you NOT do in obeying the Rules（）.
When you doubt the existence of risk of collision,（）.