RYA SRC Distress and Urgency Calls 3

Question 1

After sending a DSC distress alert, on which channel should you immediately follow up with a voice MAYDAY call?

Accepted Answer

Channel 16

Answer

After a DSC distress alert on Ch 70, you must immediately switch to Ch 16 and transmit a voice MAYDAY call.

Question 2

What is the correct procedure if you hear a MAYDAY call but the coast guard does not appear to have received it?

Accepted Answer

Transmit a MAYDAY RELAY on behalf of the vessel in distress

Answer

If the coastguard has not acknowledged the MAYDAY, any vessel that hears it should transmit a MAYDAY RELAY to alert rescue services.

Question 3

How is a MAYDAY RELAY call prefixed when transmitted by a third party?

Accepted Answer

MAYDAY RELAY spoken three times

Answer

A relay distress call is introduced with the words 'MAYDAY RELAY' repeated three times before the call.

Question 4

Which authority has the right to impose silence on all stations during a distress situation?

Accepted Answer

The coastguard or rescue coordination centre

Answer

The coastguard or rescue coordination centre can impose radio silence using the signal SEELONCE MAYDAY on Ch 16.

Question 5

What phrase is used to indicate that radio silence may be relaxed during a distress incident?

Accepted Answer

PRUDONCE

Answer

PRUDONCE (from French 'prudence') is broadcast to indicate that restricted working may resume but caution is still needed.

RYA SRC Practice Test