A.Three balls in a vertical line
B.Two balls in a vertical line
C.One ball near the foremast and one ball at each yardarm
D.One diamond near the foremast and one ball at each yardarm
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A.such risk shall be deemed to exist
B.such risk shall not be deemed to exist
C.you needn't take any action to avoid collision with any vessel
D.you should accelerate your speed ahead
A.by long distance
B.by the darkness at night
C.by a vessel in front
D.by fog or falling snow
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
最新試題
Which one of two crossing power-driven vessels has the right of way in a fog（）.
When a vessel is in any doubt as to whether such a situation exists she shall（）that it does exist and act accordingly.
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（）.
You see a vessel carrying a black diamond which indicates a（）.
You are on a vessel that cannot comply with the spacing requirement for masthead lights.What is required in this situation（）.
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 （）.
Under what condition are you allowed to depart from the rules of the road（）.
Vessels should maintain a sharp lookout，especially during December through March，when navigating the right whale’s only known calving grounds which lie off the coasts of（）.
When you doubt the existence of risk of collision,（）.
When visibility is restricted（），we can say it is restricted visibility.