Density altitude equals the pressure altitude corrected for nonstandard temperature. The statement is:

• A. The statement is false
• B. The statement is true
• C. It depends on humidity
• D. It depends on wind

Answer: (B)

Density altitude is the altitude in the standard atmosphere at which the air density matches what you’re currently experiencing. The way it’s determined is by taking pressure altitude and applying a correction for the actual temperature. When the air is warmer than standard, it becomes less dense, so the density altitude rises above the pressure altitude; when cooler, density altitude drops below. This is why warmer days feel like you’re flying at a higher altitude.

Humidity does affect air density, but the formal way density altitude is defined and used in aviation calculations is by adjusting pressure altitude for nonstandard temperature alone. Wind does not factor into density altitude calculations; it influences performance through airspeed and ground speed, not the density of the air itself.

So the statement—density altitude equals the pressure altitude corrected for nonstandard temperature—is correct.