The atmosphere of the earth is comprised of how many basic layers?
The mesosphere extends upward from the stratopause to approximately
What is the standard sea-level pressure of mercury in inches?
If an aircraft flies from a low-pressure area to a high-pressure area, what will be
the effect on the aircraft s altimeter?
It will read low
It will read high
It will read the height above actual ground level (AGL)
None. It will automatically correct to local pressure.
Why is it important for an aircraft to have correct altimeter setting for the area in
which it is flying?
To assist in anticipating weather base on pressure changes
For safety. Altitude and vertical separation are based on these settings.
To automatically maintain the correct cabin pressure based on
atmospheric pressure changes
In order to be able to pass correct atmospheric pressure setting to other
aircraft that may be out of contact with regional weather centers