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
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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
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
最新試題
Which of the following statements about transmitting distress messages by radiotelephone is INCORRECT?（）
Distress signals may be（）.
When you are firing a pyrotechnic distress signal，it should be aimed at（）.
The regulations require that inspected vessels on an international voyage，other than small passenger vessels，must carry which of the following distress signals on or near the navigating bridge?（）
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? （）
If you are transmitting a distress message by radiotelephone you should（）.
The distress message of a ship should include considerable information which might facilitate the rescue. This information should（）.
What is meant by the term “radio silence”?（）
When a vessel signals her distress by means of a gun or other explosive signal，the firing should be at intervals of approximately（）.
Which is NOT a distress signal? （）