Question

Which of the following best defines Density Altitude?

• A. Pressure altitude corrected for non-standard temperature
• B. The height of the aircraft above the Ground (AGL)
• C. The altitude indicated on the altimeter when set to the local altimeter setting
• D. The vertical distance of the aircraft above the standard datum plane

Hint:

Important aviation altitudes: \[ \boxed{ \begin{aligned} \text{AGL} &\rightarrow \text{Height above ground} \text{Pressure Altitude} &\rightarrow \text{Altitude above standard datum} \text{Density Altitude} &\rightarrow \text{Pressure altitude corrected for temperature} \end{aligned} } \]

Answer 1

The Correct Option is A

Step 1: Recall the definition of density altitude. Density altitude is defined as \[ \boxed{\text{Pressure altitude corrected for non-standard temperature}.} \] It represents the altitude in the standard atmosphere at which the air density would be equal to the existing air density.

Step 2: Analyze the given options.
• Pressure altitude corrected for non-standard temperature is the correct definition.
• Height above the ground refers to Above Ground Level (AGL).
• Altitude indicated on the altimeter using the local pressure setting is the Indicated Altitude.
• Vertical distance above the standard datum plane refers to Pressure Altitude. Therefore, \[ \boxed{\text{Pressure altitude corrected for non-standard temperature}} \] is the correct answer. Thus, \[ \boxed{(A)} \] is the correct answer.