Basic Qualification · B-002 Operating and procedures · B-002-008-001
When may you use your amateur radio station to transmit an "SOS" or "MAYDAY"?
- AOnly at specific times (at 15 and 30 minutes after the hour)
- BOnly in case of a severe weather watch
- CIn a life-threatening distress situation
- DNever
Correct answer: C — In a life-threatening distress situation. From the official ISED question bank, verified word for word.
Why
You may transmit "SOS" or "MAYDAY" only when your life or the life of another person is in immediate danger, as these signals are reserved for genuine emergencies where no other help is available. The full explanation — and one for every question — is in Pro.
Practise this section
Operating and procedures is section B-002 of the Basic exam: How to operate: calling, phonetics, Q-signals, repeaters, nets, emergency traffic, and the courtesies that keep a band usable.
Drill B-002 — free, no account