How should 4,500 feet be spoken on the radio?

• A. Four thousand five hundred feet
• B. Four thousand five hundred
• C. Four thousand five hundred above
• D. Five thousand four hundred

Answer: (B)

In radiotelephony, when you report an altitude, the number is spoken as four thousand five hundred, with the unit (feet) understood from the context. This keeps transmissions concise and unambiguous because you’re clearly talking about altitude, not a distance or other value. Saying four thousand five hundred feet would add redundancy in routine altitude reporting, so the convention is to omit the word feet and rely on the context to convey the unit.

The other options introduce an unnecessary word or an incorrect phrasing. Saying four thousand five hundred above isn’t a standard way to express altitude, and reversing the digits to five thousand four hundred changes the value.