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asa 2023 Private Pilot- Chapter 6 (weather) updated already passed
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Asa 2023 Private Pilot- Chapter 6(weather)
Every physical process of weather is accompanied by, or is the result of, a
A. Movement of Air
B. Pressure differential
C. Heat exchange - correct answer ✔✔C. Heat exchange
What causes variations in altimeter settings between weather reporting points
A. Unequal heating on the earths surface
B. Variation of terrain elevation
C. Coriolis Force - correct answer ✔✔A. Unequal heating of the Earth's surface
The development of the thermals depends upon
A. A counterclockwise circulation of air
B. Temperature inversions
C. Solar heating - correct answer ✔✔C. Solar heating
(Refer to Figure 20.) Over which area should a glider pilot expect to find the best lift under normal
conditions
A. 2
B. 7
c. 5 - correct answer ✔✔A. 2
,The wind at 5,000 feet AGL is southwesterly while the surface wind is southerly. This difference in
direction is primarily due to
A. Stronger pressure gradient at higher altitiudes
B. Friction between the wind and the surface
C. Stronger Corilois force at the surface - correct answer ✔✔B. Friction between the wind and the
surface
Convective circulation patterns associated with sea breezes are caused by
A. warm,dense air moving inland from over the water
B. water absorbing and radiating heat faster than the land
C. Cool, dense air moving inland from over the water - correct answer ✔✔C. Cool, dense air moving
inland from over the water
What is the proper airspeed to use when flying between thermals on a cross- country flight against a
headwind
A. The best lift/drag speed increased by one-half the estimated wind velocity
B. The minimum sink speed increased by one-half the estimated wind velosity
C. The best lift/drag speed decreased by one half the estimated wind velosity - correct answer ✔✔A. The
best lift/drag speed increased by one-half the estimated wind velosity
When there is a temperature inversion, you would expect to experience
A. Clouds with extensive vertical development above an inversion aloft
B. Good visibility in the lower levels of the atmosphere and poor visibilty above an inversion aloft
C. An increase in temperature as altitude increases - correct answer ✔✔C. An increase in temperature as
altitude increases
The most frequent type of ground or surface-based temperature inversion is that which is produced by
, A. Terrestrial radiation on a clear, relatively still night
B. Warm air being lifted rapidly aloft in the vicinity of mountainous terrain
C. The movement of colder air under warm air, or the movement of warm air over cold air - correct
answer ✔✔A. Terrestrial radiation on a clear, relatively still night
What is meant by the term dew point
A. The temperature at which condensation and evaporation are equal
B. The temperature at which dew will always form
C. The temperature to which air must be cooled to become saturated - correct answer ✔✔C. The
temperature to which air must be cooled to become saturated
The amount of water vapor which air can hold depends on the
A. Dew point
B. Air tempurature
C. Stability of the air - correct answer ✔✔B. Air temperature
Clouds, fog, or dew will always form when
A. Water vapor condenses
B. Water vapor is present
C. relative humidity reaches 100 percent - correct answer ✔✔A. water vapor condenses
What are the processes by which moisture is added to unsaturated air?
A. Evaporation and sublimation
B. Heating and condensation
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