CPAER Meteorology Exam 2026
Questions and Answers
What is the primary driver of weather? - Correct answer-Uneven heating of the
surface of the earth
In a standard atmosphere the environmental lapse rate is - Correct answer-2º per
1,000ft
The dry adiabatic lapse rate is - Correct answer-3º per 1,000ft
The wet adiabatic lapse rate is - Correct answer-1.5º per 1,000ft
A stable atmosphere occurs when the environmental lapse rate is - Correct answer-
Shallow or negative
An unstable atmosphere occurs when the environmental lapse rate is - Correct
answer-Steeper than both the wet and dry adiabatic lapse rates
A potentially unstable atmosphere occurs when the environmental lapse rate is -
Correct answer-Somewhere between the dry an wet adiabatic lapse rates
ISA - Correct answer-15º and pressure at sea level of 29.92" (1013.2hpa)
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, The average height of the tropopause is - Correct answer-36,000ft
For every 1,000ft climbed, mercury drops approximately - Correct answer-1"
Relative humidity - Correct answer-The amount of water in the air relative to the
maximum it can hold at given temperature and pressure
Dewpoint - Correct answer-The temperature at which condensation begins
Is humid air or dry air more dense? - Correct answer-Dry air
Convection - Correct answer-Vertical movement of air
Advection - Correct answer-Horizontal movement of air
Deposition - Correct answer-When gas changes *directly* to a solid
Isobars - Correct answer-Lines of constant/equal pressure
Isotachs - Correct answer-Lines of constant/equal wind velocity
Contour lines - Correct answer-Lines where the altitude at which a specified
pressure occurs is constant
Cloudy/rainy weather is associated with - Correct answer-Low pressure system
(ascending air)
Which way does air circulate in a low pressure system? - Correct answer-Counter-
clockwise
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Questions and Answers
What is the primary driver of weather? - Correct answer-Uneven heating of the
surface of the earth
In a standard atmosphere the environmental lapse rate is - Correct answer-2º per
1,000ft
The dry adiabatic lapse rate is - Correct answer-3º per 1,000ft
The wet adiabatic lapse rate is - Correct answer-1.5º per 1,000ft
A stable atmosphere occurs when the environmental lapse rate is - Correct answer-
Shallow or negative
An unstable atmosphere occurs when the environmental lapse rate is - Correct
answer-Steeper than both the wet and dry adiabatic lapse rates
A potentially unstable atmosphere occurs when the environmental lapse rate is -
Correct answer-Somewhere between the dry an wet adiabatic lapse rates
ISA - Correct answer-15º and pressure at sea level of 29.92" (1013.2hpa)
©COPYRIGHT 2025, ALL RIGHTS RESERVE 1
, The average height of the tropopause is - Correct answer-36,000ft
For every 1,000ft climbed, mercury drops approximately - Correct answer-1"
Relative humidity - Correct answer-The amount of water in the air relative to the
maximum it can hold at given temperature and pressure
Dewpoint - Correct answer-The temperature at which condensation begins
Is humid air or dry air more dense? - Correct answer-Dry air
Convection - Correct answer-Vertical movement of air
Advection - Correct answer-Horizontal movement of air
Deposition - Correct answer-When gas changes *directly* to a solid
Isobars - Correct answer-Lines of constant/equal pressure
Isotachs - Correct answer-Lines of constant/equal wind velocity
Contour lines - Correct answer-Lines where the altitude at which a specified
pressure occurs is constant
Cloudy/rainy weather is associated with - Correct answer-Low pressure system
(ascending air)
Which way does air circulate in a low pressure system? - Correct answer-Counter-
clockwise
©COPYRIGHT 2025, ALL RIGHTS RESERVE 2
