ATC Weather Exam 2026 Questions and
Answers
Atmospheric Pressure - Correct answer-The force exerted by the atmosphere at a
given point.
(At sea level) Surface temperature? - Correct answer-15 Degrees C/59 Degrees F
(At sea level) Surface pressure? - Correct answer-29.92 inches of mercury
Weight of atmosphere at sea level... - Correct answer-14.7 pounds per square inch
Pressure decreases roughly how much of mercury for each 1,000 feet increase in
altitude? - Correct answer-One inch
Aneroid Barometer - Correct answer-Less accurate than the mercurial barometer.
Altimeter Settings Indicator (ASI) - Correct answer-Primary means of obtaining
altimeter settings at terminal facilities, DASI is Digital.
Station Pressure - Correct answer-Pressure measured at airport.
AGL - Correct answer-Above ground level
MSL - Correct answer-Mean sea level
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,True Altitude - Correct answer-an actual or exact altitude above mean sea level.
Indicated Altitude - Correct answer-an altitude above mean sea level indicated on
the altimeter.
Aircraft flies from a high pressure area to a low pressure area, the aircraft is _____
than the altimeter indicates. - Correct answer-Lower.
Aircraft flies from a low pressure area to a high pressure area, the aircraft is _____
than the altimeter indicates. - Correct answer-Higher.
Define Lapse Rate. - Correct answer-When temperature decreases with an increase
in altitude.
Standard Lapse Rate - Correct answer-2 Degrees C/3.3 Degrees F per 1,000 feet
Aircraft flying from warm to cold air, the aircraft will be _____ than the altimeter
indicates. - Correct answer-Lower; "High to low, look out below."
Aircraft flying from cold to warm air, the aircraft will be _____ than the altimeter
indicates. - Correct answer-Higher; "Low to high, eyes to the sky."
Pressure Altitude - Correct answer-The altitude in the standard atmosphere where
the current pressure surrounding the aircraft is found.
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, FAA regulations require aircraft to fly at pressure altitudes at high levels. What is
the example given to us? - Correct answer-Above 18,000 feet, automatically input
29.92.
Density Altitude - Correct answer-The altitude in the standard atmosphere where
density of the air surrounding the aircraft is found.
What determines air density? - Correct answer-Pressure, temperature, and
humidity.
What happens in high density altitude and how does it effect an aircraft? - Correct
answer-Hot day, air becomes "thinner" and "lighter." Reduces aircraft performance
by reducing power, thrust, and lift and lengthens takeoff and landing role. Reduces
the rate of climb.
What does low density do? - Correct answer-Increases aircraft performance.
Convective Current - Correct answer-Caused by two surfaces heated unequally
cause the uneven heating of the air above.
Wind - Correct answer-The horizontal airflow in a convective current
Advection - Correct answer-Horizontal movement of wind.
Air flows from areas of _____ pressure to ares of _____ pressure. - Correct
answer-Higher; lower.
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Answers
Atmospheric Pressure - Correct answer-The force exerted by the atmosphere at a
given point.
(At sea level) Surface temperature? - Correct answer-15 Degrees C/59 Degrees F
(At sea level) Surface pressure? - Correct answer-29.92 inches of mercury
Weight of atmosphere at sea level... - Correct answer-14.7 pounds per square inch
Pressure decreases roughly how much of mercury for each 1,000 feet increase in
altitude? - Correct answer-One inch
Aneroid Barometer - Correct answer-Less accurate than the mercurial barometer.
Altimeter Settings Indicator (ASI) - Correct answer-Primary means of obtaining
altimeter settings at terminal facilities, DASI is Digital.
Station Pressure - Correct answer-Pressure measured at airport.
AGL - Correct answer-Above ground level
MSL - Correct answer-Mean sea level
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,True Altitude - Correct answer-an actual or exact altitude above mean sea level.
Indicated Altitude - Correct answer-an altitude above mean sea level indicated on
the altimeter.
Aircraft flies from a high pressure area to a low pressure area, the aircraft is _____
than the altimeter indicates. - Correct answer-Lower.
Aircraft flies from a low pressure area to a high pressure area, the aircraft is _____
than the altimeter indicates. - Correct answer-Higher.
Define Lapse Rate. - Correct answer-When temperature decreases with an increase
in altitude.
Standard Lapse Rate - Correct answer-2 Degrees C/3.3 Degrees F per 1,000 feet
Aircraft flying from warm to cold air, the aircraft will be _____ than the altimeter
indicates. - Correct answer-Lower; "High to low, look out below."
Aircraft flying from cold to warm air, the aircraft will be _____ than the altimeter
indicates. - Correct answer-Higher; "Low to high, eyes to the sky."
Pressure Altitude - Correct answer-The altitude in the standard atmosphere where
the current pressure surrounding the aircraft is found.
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, FAA regulations require aircraft to fly at pressure altitudes at high levels. What is
the example given to us? - Correct answer-Above 18,000 feet, automatically input
29.92.
Density Altitude - Correct answer-The altitude in the standard atmosphere where
density of the air surrounding the aircraft is found.
What determines air density? - Correct answer-Pressure, temperature, and
humidity.
What happens in high density altitude and how does it effect an aircraft? - Correct
answer-Hot day, air becomes "thinner" and "lighter." Reduces aircraft performance
by reducing power, thrust, and lift and lengthens takeoff and landing role. Reduces
the rate of climb.
What does low density do? - Correct answer-Increases aircraft performance.
Convective Current - Correct answer-Caused by two surfaces heated unequally
cause the uneven heating of the air above.
Wind - Correct answer-The horizontal airflow in a convective current
Advection - Correct answer-Horizontal movement of wind.
Air flows from areas of _____ pressure to ares of _____ pressure. - Correct
answer-Higher; lower.
©COPYRIGHT 2025, ALL RIGHTS RESERVE 3
