MAYDAY is to be used to announce________.A.a distress messageB.an urgency messageC.a safety messageD.a massage of SMCP

International distress signal in VHF calling for help is________.

A.Help,Help,Help

B.Mayday,Mayday,Mayday

C.Save,Save,Save

D.Rescue,Rescue,Rescue

A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the ______.

A.distress position

B.spoken words “Mayday, Mayday, Mayday”

C.ship’s name

D.ship’s call letters

One of the signals, other than a distress signal, that can be used by a rescue boat to attract attention is a/an ______.

A.red star shell

B.searchlight

C.burning barrel

D.orange smoke signal

While proceeding to a distress site，you hear the words “Seelonce mayday” on the radiotelephone．Which action should you take ________．

A.Resume base course and speed as your assistance is no longer required

B.Acknowledge receipt and advise your course，speed，and ETA

C.Relay the original distress message as no other vessel has acknowledged it

D.Monitor the radiotelephone but do not transmit

If you know that the vessel you are about to call on the VHF radio maintains a radio watch on both the working and the calling frequencies, which frequency should you call on ?______.

A.Calling frequency

B.Distress frequency

C.Urgency frequency

D.Working frequency

PAN PAN is to be used to announce______．

A.a distress message

B.an urgency message

C.a safety message

D.a massage of SMCP