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
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A.Radiation fog
B.Frontal fog
C.Convection fog
D.Advection fog
A.One to another
B.One the other
C.Each the other
D.Each other
A.Situations when you can see vessels on radar that you cannot see visually
B.Visibility of less than half a mile
C.Any condition where visibility is restricted
D.Visibility where you cannot see shore
A.a blast of from five to seven seconds' duration
B.a blast of from five to six seconds' duration
C.a blast of from four to six seconds' duration
D.a blast of from six to seven seconds' duration
A.Whenever two vessels approach from opposite directions
B.If the bearing of an approaching vessel does not appreciably change
C.Whenever a vessel crosses ahead of the intended track of another vessel
D.If one vessel approaches another so as to be overtaking
最新試題
When one of two vessels（）is required to keep out of the way the other must keep her course and speed.
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（）.
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（）.
You are on a vessel that cannot comply with the spacing requirement for masthead lights.What is required in this situation（）.
When visibility is restricted（），we can say it is restricted visibility.
Which vessel is NOT to be regarded as restricted in her ability to maneuver（）.
When ship at anchor she shall be deemed to be（）.
Which vessel is the stand-on vessel when two vessels crossing in fog are NOT in sight of one another（）.
You are under sail and overtaking a tug and tow.Which action is correct（）.
Underway at night，a vessel displaying the lights shown is（）.