Multiple choice general knowledge history

Which three letters replaced CQD?

  1. SOS

  2. KGB

  3. TNT

  4. FYI
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

CQD was the original maritime distress signal, replaced by SOS in 1906 because SOS was easily recognizable in Morse code (three dots, three dashes, three dots). KGB was the Soviet security agency, TNT is an explosive, and FYI is an abbreviation for 'for your information.'

Keep practicing — related questions