A.The Morse code distress series S-O-S repeated 3 times followed by DE and the vessel's call sign
B.A line of blip code on a radar screen outward from the SART's position along its line of bearing
C.A line of blip code on a radar screen inward from the SART's position to its own ship along its line of bearing
D.None of these
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A.Distress messages should first be transmitted on 2182 kHz
B.Channel 16 (156.8 MHz) may be used for distress messages
C.If no answer is received on the designated distress frequencies,repeat the distress call on any frequency available
D.It is advisable to follow a distress message on 2182 kHz by two dashes of 10 to 15 seconds duration
A.If no answer is received on the designated distress frequencies,repeat the distress call on any frequency available
B.Channel 16 (156.8) may be used for distress messages
C.It is advisable to follow a distress message on 2182 kHz by two dashes of 10 to 15 seconds duration
D.Distress messages should first be transmitted on 2182 kHz
A.A continuous sounding with any fog signal apparatus
B.A signal sent by radiotelephone consisting of the spoken word "Mayday"
C.An International Code Signal of N.C.
D.The firing of green star rockets or shells
A.A triangular flag above or below a ball
B.The International Code Signal of distress indicated by "JV"
C.A green smoke signal
D.Flames on the vessel as from a burning tar barrel
A.Class A EPIRBs
B.Class B EPIRBs
C.L-Band EPIRBs
D.Category I EPIRBs
最新試題
Distress signals may be().
If your vessel is underway in fog and you hear one prolonged and three short blasts,this indicates a().
If you log a distress message,it must include the().
The service life of distress signals must be not more than().
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 NOT a distress signal?()
Which condition represents the appropriate time for setting off distress flares and rockets? ()
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? ()
Which EPIRB transmits a distress alert that is received and relayed by an INMARSAT satellite?()