Home › Part 107 Practice Tests › Airspace & Flight Restrictions Questions › Question 103
On the radio, the number 9 is spoken as
- A.nine, the same as in everyday speech
- B.nein, following the German pronunciation
- C.niner, to avoid confusion with similar-sounding words
Correct answer
C. niner, to avoid confusion with similar-sounding words
Why
Nine is pronounced niner in aviation phraseology so it is not confused with other words or numbers over a noisy channel. Everyday pronunciation and foreign words are not the standard.
Source: FAA-G-8082-22 Ch. 7 · ACS knowledge area: Radio Communication Procedures · From the Airspace & Flight Restrictions practice bank (AIR-103).