A.Only when there is a chance of their being seen by rescue vessels
B.At half hour intervals
C.At one hour intervals
D.Immediately upon abandoning the vessel
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A.Navigational warnings
B.Weather warnings
C.SAR and distress alert information
D.All of the above
A.Send a DSC cancellation message on Ch-70
B.Make a voice announcement to cancel the alert on Ch-16
C.Make a voice announcement to cancel the alert on Ch-13
D.Make a voice announcement to cancel the alert on Ch-22A
A.straight overhead
B.at the vessel whose attention you are trying to get
C.into the wind
D.about 60 degrees above the horizon
A.Immediately upon abandoning the vessel
B.Only when there is a chance of their being seen by a rescue vessel
C.At one hour intervals
D.At half hour intervals
A.position will automatically be sent
B.position will only be sent if the vessel is making a distress call
C.MMSI will indicate its ocean region
D.None of the above
最新試題
Three short blasts of the whistle means（）.
When you are firing a pyrotechnic distress signal，it should be aimed at（）.
Which of the following statements about transmitting distress messages by radiotelephone is INCORRECT?（）
If you log a distress message，it must include the（）.
When a vessel signals her distress by means of a gun or other explosive signal，the firing should be at intervals of approximately（）.
Which condition represents the appropriate time for setting off distress flares and rockets? （）
Which of the following statements about transmitting distress messages by radiotelephone is INCORRECT?（）
If you are transmitting a distress message by radiotelephone you should（）.
Several merchant ships are arriving at the scene of a distress incident. One of the them must assume the duties of the Coordinator Surface Search (CSS). Which of the following statements is TRUE? （）
Wat is NOT required in the radiotelephone log?（）