OUPV & 100-Ton Master · Radio Procedures
The spoken word that signals a distress call demanding immediate assistance for grave and imminent danger is:
- APAN-PAN
- BSECURITE
- CMAYDAY✓ Correct
- DPRUDONCE
Explanation
MAYDAY (spoken three times) signals distress — grave and imminent danger requiring immediate assistance. PAN-PAN is urgency; SECURITE is safety (navigational or weather warnings).
Authority: FCC Rules, 47 CFR Part 80; ITU radio procedures
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