Question 154 Deck Safety

70% to pass

A Coast Guard radiotelephone message about an aid to navigation that is off station is preceded by the word _______________.

A "SECURITY"
B "SOS"
C "PAN-PAN"
D "MAYDAY"
AI Explanation

The correct answer is A) "SECURITY". The word "SECURITY" is used to precede a Coast Guard radiotelephone message about an aid to navigation that is off station. This is in accordance with the International Telecommunication Union (ITU) Regulations, which govern the use of radio communications, including for maritime distress and safety communications. The other options are incorrect because: B) "SOS" is the international Morse code distress signal, not used for navigational messages. C) "PAN-PAN" is used for urgent communications, not specifically for aids to navigation issues. D) "MAYDAY" is the international radiotelephone distress call, reserved for life-threatening emergencies at sea.

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Official Resources
46 CFR Lifesaving Equipment USCG Marine Safety Center USCG National Maritime Center
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