Altimeter Flashcards
What are the 3 hands on an altimeter?
Short needle- 10,000ft
Medium needle- 1,000 ft
Long needle-100 ft
What is absolute altitude?
The vertical distance of the aircraft above the surface.
What is true altitude?
The vertical distance of the aircraft above sea level.
What is density altitude?
The pressure altitude corrected for nonstandard temperature.
What is pressure altitude?
The altitude indicated when the barometric pressure scale is set to 29.92.
Altimeter setting is the value to which the barometric pressure scale of the altimeter is set so the altimeter indicates..
..absolute altitude at field elevation.
Under what condition is indicated altitude the same as true altitude?
When at sea level under standard conditions.
Under what condition is pressure altitude and density altitude and density altitude the same level?
At standard temperature.
Under which condition will pressure altitude be equal to true altitude?
When standard atmospheric conditions exist.
If it is necessary to set the altimeter from 29.15 to 29.85, what change occurs?
A 700 foot increase in density altitude.
If a pilot changes the altimeter setting from 30.11 to 29.96, what is the approximate change in indication?
Altimeter will indicate 150 ft lower.
If a flight is made from an area of low pressure into an area of high pressure without the altimeter setting being adjusted, the altimeter will indicate..
..lower than the actual altitude above sea level.
If a flight is made from an area of high pressure into an area of lower pressure without the altimeter setting being adjusted, the altimeter will indicate…
..higher than the actual altitude above sea level.
Which condition would cause the altimeter to indicate a lower altitude than true altitude?
Air temperature warmer than standard.
Under what condition will true altitude be lower than indicated altitude?
In colder than standard air temperature.
