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
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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
A.not be regarded as a vessel
B.in general，keep well clear of all vessels
C.proceed at a slower speed than surrounding vessels
D.when making way，show the lights for a vessel not under command
A.The construction of the vessel
B.The experience of the vessel's crew
C.The location of vessels detected by radar
D.All of the above
A.The distance of visibility
B.1/2 the distance of visibility
C.A distance appropriate to the existing circumstances and conditions
D.The distance that it would require for the propeller to go from full ahead to full astern
最新試題
Vessel engaged in the launching or recovery of aircraft is called（）．
Which display indicates a vessel conducting mineclearance operations（）.
You see another vessel approaching，and its compass bearing does not significantly change.This would indicate that（）.
When underway in a channel，you should if safe and practicable（）.
You are underway and approaching a bend in the channel where vessels approaching from the opposite direction cannot be seen．You should sound（）.
Under what condition are you allowed to depart from the rules of the road（）.
Underway at night，a vessel displaying the lights shown is（）.
When ship at anchor she shall be deemed to be（）.
Which vessel is NOT classified as “restricted in her ability to maneuver” （）.
Your vessel is not underway when（）.