A.one blast，4 to 6 seconds in duration
B.three blasts，4 to 6 seconds in duration
C.one continuous blast until you are able to see around the bend
D.one blast，8 to 10 seconds in duration
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A.The power-driven tug must maneuver to avoid collision
B.You must maneuver to avoid the tug and tow
C.You must maneuver to avoid collision only if the tug is to leeward and the wind is on your port side
D.Both vessels are required to maneuver to avoid collision
A.The vessel must carry only the lights that comply with the rules; the others may be omitted
B.The vessel's lights must comply as closely as possible，as determined by her government
C.The vessel must be altered to permit full compliance with the rules
D.An all-round light should be substituted for the after masthead light and the stern light
A.No fog signal
B.A prolonged blast at intervals never to exceed more than two minutes
C.A prolonged blast followed by two short blasts at intervals never to exceed more than two minutes
D.A prolonged blast followed by three short blasts at intervals never to exceed more than one minute
A.hold course and sound a two blast whistle signal
B.hold course and sound no whistle signal
C.change course to the right and sound one blast
D.hold course and sound two prolonged and two short blasts
A.Cross ahead of the stand-on vessel
B.Make a large course change to starboard
C.Slow your vessel
D.Back your vessel
最新試題
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 one upbound vessel is overtaking another vessel and both are pushing a tow ahead，what reaction may you expect（）.
Which statement is TRUE，according to the Rules（）.
You are underway in reduced visibility.You hear the fog signal of another vessel about 20° on your starboard bow.Risk of collision may exist.You should（）.
Which statement correctly applies to a situation where a sailing vessel is overtaking a power-driven vessel（）.
When shall the stand-on vessel in a crossing situation take action to avoid the other vessel（）.
When one of two vessels（）is required to keep out of the way the other must keep her course and speed.
Which vessel is NOT to be regarded as restricted in her ability to maneuver（）.
When underway in a channel，you should keep to the（）.
You are under sail and overtaking a tug and tow.Which action is correct（）.