Question

What is density altitude?

a) The height above the standard datum plane.
b) The pressure altitude corrected for nonstandard temperature.
c) The altitude read directly from the altimeter.

Answer 1

Density altitude is the pressure altitude corrected for nonstandard temperature. It represents the altitude at which the air density is equivalent to the standard atmosphere at sea level.

Step-by-step explanation:

Density altitude is the pressure altitude corrected for nonstandard temperature. It represents the altitude at which the air density is equivalent to the standard atmosphere at sea level. As altitude increases, the air density decreases, which affects aircraft performance and other aviation-related calculations.

For example, at a high altitude airport with a hot temperature, the density altitude would be higher than the actual altitude. This means that the aircraft would perform as if it were at a higher altitude, resulting in reduced engine power and lift.

A specific calculation is used to determine the density altitude, taking into account the pressure altitude and the difference between the standard temperature and the actual temperature.