A.At one hour intervals
B.At half hour intervals
C.Only when there is a chance of their being seen by rescue vessels
D.Immediately upon abandoning the vessel
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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
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
最新試題
If you log a distress message，it must include the（）.
What is NOT a distress signal?（）
What is the fundamental purpose for imposing radio silence? （）
When you are firing a pyrotechnic distress signal，it should be aimed at（）.
The signal to guide vessels in distress，which indicates，“This is the best place to land” is the（）.
Which signal is recognized as a distress signal?（）
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? （）
What is meant by the term “radio silence”?（）
Distress flares and smoke signals for small passenger vessels（）.
When can routine communications be resumed on a frequency or channel on which radio silence has been imposed? （）