ASA PRIVATE PILOT TEST PREP
(CHAPTER 6) EXAM 2025 QUESTIONS
AND ANSWERS
Every physical process of weather is accompanied by, or is the result of, a - ANS heat
exchange
What causes variations in altimeter settings between weather reporting points? -
ANS Unequal heating of the Earth's surface
The wind at 5,000 feet AGL is southwesterly while the surface wind is southerly. This difference
in direction is primarily due to - ANS friction between the wind and the surface
Convective circulation patterns associated with sea breezes are caused by - ANS cool, dense
air moving inland from over the water
When there is a temperature inversion, you would expect to experience - ANS an increase in
temperature as altitude increases
The most frequent type of ground or surface-based temperature inversion is that which is
produced by - ANS terrestrial radiation on a clear, relatively still night
What are the processes by which moisture is added to unsaturated air? - ANS Evaporation
and sublimation
If the temperature/dewpoint spread is small and decreasing, and the temperature is 62 degrees
F, what type of weather is most likely developing - ANS Fog or low clouds
1 Copyright ©2025 FYNDLAY ALL RIGHTS RESERVED.
, One of the most easily recognized discontinuities across a front is - ANS a change in
temperature
One weather phenomenon which will always occur when flying across a front is a change in the
- ANS wind direction
Which weather conditions should be expected beneath a low-level temperature inversion layer
when the relative humidity is high? - ANS Smooth air, poor visibility, fog, haze, or low clouds
What measurement can be used to determine the stability of the atmosphere? - ANS Actual
lapse rate
What would decrease the stability of an air mass? - ANS Warming from below
What is a characteristic of stable air? - ANS Stratiform clouds
What feature is associated with a temperature inversion? - ANS A stable layer of air
What are characteristics of a moist, unstable air mass? - ANS Cumuliform clouds and
showery precipitation
What are characteristics of unstable air? - ANS Turbulence and good surface visibility.
A stable air mass is most likely to have which characteristic? - ANS Poor surface visibility
When warm, moist, stable air flows upslope, it - ANS produces stratus type clouds
If an unstable air mass is forced upward, what type clouds can be expected? - ANS clouds
with considerable vertical development and associated turbulence
2 Copyright ©2025 FYNDLAY ALL RIGHTS RESERVED.
(CHAPTER 6) EXAM 2025 QUESTIONS
AND ANSWERS
Every physical process of weather is accompanied by, or is the result of, a - ANS heat
exchange
What causes variations in altimeter settings between weather reporting points? -
ANS Unequal heating of the Earth's surface
The wind at 5,000 feet AGL is southwesterly while the surface wind is southerly. This difference
in direction is primarily due to - ANS friction between the wind and the surface
Convective circulation patterns associated with sea breezes are caused by - ANS cool, dense
air moving inland from over the water
When there is a temperature inversion, you would expect to experience - ANS an increase in
temperature as altitude increases
The most frequent type of ground or surface-based temperature inversion is that which is
produced by - ANS terrestrial radiation on a clear, relatively still night
What are the processes by which moisture is added to unsaturated air? - ANS Evaporation
and sublimation
If the temperature/dewpoint spread is small and decreasing, and the temperature is 62 degrees
F, what type of weather is most likely developing - ANS Fog or low clouds
1 Copyright ©2025 FYNDLAY ALL RIGHTS RESERVED.
, One of the most easily recognized discontinuities across a front is - ANS a change in
temperature
One weather phenomenon which will always occur when flying across a front is a change in the
- ANS wind direction
Which weather conditions should be expected beneath a low-level temperature inversion layer
when the relative humidity is high? - ANS Smooth air, poor visibility, fog, haze, or low clouds
What measurement can be used to determine the stability of the atmosphere? - ANS Actual
lapse rate
What would decrease the stability of an air mass? - ANS Warming from below
What is a characteristic of stable air? - ANS Stratiform clouds
What feature is associated with a temperature inversion? - ANS A stable layer of air
What are characteristics of a moist, unstable air mass? - ANS Cumuliform clouds and
showery precipitation
What are characteristics of unstable air? - ANS Turbulence and good surface visibility.
A stable air mass is most likely to have which characteristic? - ANS Poor surface visibility
When warm, moist, stable air flows upslope, it - ANS produces stratus type clouds
If an unstable air mass is forced upward, what type clouds can be expected? - ANS clouds
with considerable vertical development and associated turbulence
2 Copyright ©2025 FYNDLAY ALL RIGHTS RESERVED.
