RYA SRC GMDSS 5

Question 1

Which GMDSS distress frequency must a compulsory watch be maintained on at all times?

Accepted Answer

Channel 16 (156.8 MHz)

Answer

All vessels required to carry a radio must maintain a continuous watch on Channel 16, the international VHF distress, safety and calling channel.

Question 2

What is the correct Urgency signal prefix and what situation does it indicate?

Accepted Answer

PAN PAN — a very urgent situation concerning the safety of a vessel or person

Answer

PAN PAN (spoken three times) is the Urgency signal, used when there is a very urgent situation concerning the safety of a ship, aircraft, vehicle, or person but where immediate assistance is not required.

Question 3

The Safety signal SECURITE is typically used to broadcast what type of message?

Accepted Answer

A navigational warning about hazards such as debris, vessels aground or severe weather

Answer

SECURITE (spoken three times) precedes safety messages about navigational or meteorological hazards, warning other mariners of dangers such as unlit vessels, floating debris, or gale warnings.

Question 4

Under what circumstances may a vessel transmit a Mayday Relay on behalf of another vessel?

Accepted Answer

When the vessel in distress is unable to communicate directly and the relaying station believes help is needed

Answer

Any station may transmit a Mayday Relay if it believes a vessel is in distress and cannot communicate directly, ensuring the alert reaches the rescue services.

Question 5

What information must a valid Ship Radio Licence include?

Accepted Answer

The vessel's name, call sign, MMSI number and the frequencies/channels authorised for use

Answer

A Ship Radio Licence must detail the vessel's name, call sign, MMSI, and the radio frequencies and channels the vessel is authorised to use — it is issued to the vessel, not the operator.

RYA SRC Practice Test

RYA SRC Practice Test

RYA SRC GMDSS 5