單項(xiàng)選擇題

Which condition represents the appropriate time for setting off distress flares and rockets? （）

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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單項(xiàng)選擇題

Which categories of NAVTEX messages may not be selectively rejected through receiver programming?（）

A.Navigational warnings
B.Weather warnings
C.SAR and distress alert information
D.All of the above

單項(xiàng)選擇題

Which action should you take after sending a false distress alert on VHF?（）

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

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Which condition represents the appropriate time for setting off distress flares and rockets? （）

你可能感興趣的試題

Which categories of NAVTEX messages may not be selectively rejected through receiver programming?（）

Which action should you take after sending a false distress alert on VHF?（）