2017년03월04일 27번
[임의 구분] What is the safety signal used in radiotelephony?
- ① SECURITE
- ② PAN PAN
- ③ XXX
- ④ TTT
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문제 해설
"SECURITE" is the safety signal used in radiotelephony because it indicates that the message being transmitted is related to the safety of navigation or people on board the aircraft or vessel. It is used to alert other stations to listen carefully to the message and take any necessary action to ensure safety.