2.5 Types Of Altitude

25 July 2022
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question
What is absolute altitude? a) The altitude read directly form the altimeter b) The vertical distance of the aircraft above the surface c) The height above the standard datum plane.
answer
B : Absolute altitude is altitude above the surface, i.e., AGL.
question
What is true altitude? a) The vertical distance of the aircraft above sea level b) The vertical distance of the aircraft above the surface c) The height above the standard datum plane
answer
A : True altitude is the actual above mean sea level, i.e., MSL.
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
B : Density altitude is the pressure altitude corrected for nonstandard temperature.
question
What is pressure altitude? a) The indicated altitude corrected for position and installation error. b) The altitude indicated when the barometric pressure scale is set to 29.92. c) The indicated altitude corrected for nonstandard temperature and pressure.
answer
B : Pressure altitude is the airplane's height above the standard datum plane of 29.92" Hg. If the altimeter is set to 29.29" Hg, the indicated altitude is the pressure altitude.
question
Altimeter setting is the value to which the barometric pressure scale of the altimeter is set to the altimeter indicates a) calibrated altitude at field elevation. b) absolute altitude at field elevation. c) true altitude at field elevation
answer
C : Altimeter setting is the value to which the scale of the pressure altimeter is set so that the altimeter indicates true altitude at field elevation.
question
Under what condition is indicated altitude the same as true altitude? a) If the altimeter has no mechanical error b) When at sea level under standard conditions c) When at 18,000 ft. MSL with the altimeter set at 29.92
answer
B : Indicated altitude (what you read on your altimeter) approximates the true altitude (distance above mean sea level) when standard conditions exist and your altimeter is properly calibrated.
question
Under which condition is pressure altitude and density altitude the same value? a) At sea level, when the temperature is 0 degress F b) When the altimeter has no installation error c) At standard temperature
answer
C : Pressure altitude and density altitude are the same when temperature is standard.
question
Under which condition will pressure altitude be equal to true altitude? a) When the atmospheric pressure is 29.92" Hg b) When standard atmospheric conditions exist c) When indicated altitude is equal to the pressure altitude
answer
B : Pressure altitude equals true altitude when standard atmospheric conditions (29.92" Hg and 15 degrees C at sea level) exist.