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
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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
A.After determining that the frequency or channel appears to be no longer in use
B.After determining that geographic distance from the distress situation will prohibit any other signal from interfering with emergency communications
C.Routine communications can resume after the Rescue Coordination Center transmits a message on the frequency or channel being used for emergency communications stating that such traffic has concluded
D.If,in the Master's opinion,communications on that frequency will interfere with emergency communications
A.After determining that the frequency or channel appears to be no longer in use
B.After determining that geographic distance from the distress situation will prohibit any other signal from interfering with emergency communications
C.After the Rescue Coordination Center transmits a message on the frequency or channel being used for emergency communications stating that such traffic has concluded
D.Routine communications can resume if,in the Master's opinion,communications on that frequency or channel will not interfere with emergency communications
A.10 minutes
B.1 minute
C.1 hour
D.3 minutes
A.To ensure that interference to proprietary communications is minimized
B.To ensure that only voice communications can be effected on the distress frequency or channel
C.To ensure that a distressed vessel will have a "window" twice each hour for transmitting routine messages
D.To ensure that interference on a particular frequency or channel to communications concerning emergency traffic is minimized
最新試題
Which categories of NAVTEX messages may not be selectively rejected through receiver programming?()
Which signal is detected as originating from a SART?()
If your vessel is underway in fog and you hear one prolonged and three short blasts,this indicates a().
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? ()
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Distress flares and smoke signals for small passenger vessels().
How is “radio silence” imposed?()
Wat is NOT required in the radiotelephone log?()
The signal to guide vessels in distress,which indicates,“This is the best place to land” is the().
Which action should you take after sending a false distress alert on VHF?()