ADX Oral Test Prep 2023 Questions and Answers 100% Verified
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ADX Oral
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ADX Oral
ADX Oral Test Prep 2023 Questions and Answers 100% Verified
What is the lowest level in the atmosphere
Troposphere
One characteristic of the lowest level of the atmosphere
Decrease in temp with increase in height
What is it called when temperature increases with height
Inversion
layer in b...
adx oral test prep 2023 questions and answers 100 verified what is the lowest level in the atmosphere troposphere one characteristic of the lowest level of the atmosphere decrease in temp with incre
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ADX Oral Test Prep 2023 Questions and Answers 100%
Verified
What is the lowest level in the atmosphere
Troposphere
One characteristic of the lowest level of the atmosphere
Decrease in temp with increase in height
What is it called when temperature increases with height
Inversion
layer in between troposphere and stratosphere
tropopause
What is it important to know in order to determine at what altitude the tropopause
is
Lapse rate change, jet stream, air becomes more stable
Describe unstable air
Air, when lifted, continues to rise on its own due to surrounding air temperature being
cooler than the lifted air
3 lifting mechanisms
Solar radiation-sun heats ground, which heats air and rises
Topographical- wind forcing air up slope
Frontal movement-cold fronts force air over it
3 adiabatic lapse rates
Dry- 3C per 1,000 ft
Standard- 2C per 1000
Saturated- 1.5C per 1000
What is ISA
International Standard Atmosphere
What is ISA temperature at sea level
15 C
ISA pressure at sea level
29.92 in of hG
1013.2 millibars of pressure
Describe a cold front
Fast moving, unstable air, cumuliform clouds, temperature drop after front passes,
showery precip, clear ice, weather improves quickly after front pass
Describe warm front
Slow, stable air, stratiform clouds, steady precip, increased temp after passes, wind
shifts, rime ice, weather slow to improve after passes
What is a TROF
Elongated area of low pressure
What is a dry line
a boundary that separates a moist air mass from a dry air mass
What are two pressure systems
High and low
Describe airflow around a high pressure system
, Clockwise, downwards, and out from center
Describe airflow around a low pressure system
Counter clockwise, upwards and inward toward center
What is the coriolis effect
earths rotation causes winds to curve around high and low pressure systems
Where does Coriolis have the greatest and least effect on wind direction?
Greatest at poles
Least at equator
What are the 3 weather conditions required for thunderstorm formation
Unstable air, moisture, lifting action
What does convection mean
Vertically moving air
What are the 3 stages of a thunderstorm and what is the worst stage
Cumulus-growth
Mature-precip
Dissipating- downdrafts worst stage
Name in-flight weather dangers associated with thunderstorm
Hail, wind shear, turbulence, lightning, tornadoes, icing
What is a microburst
10-15 min of downdrafts from a thunderstorm that can cause low level wind shear
Types of clouds associated with thunderstorms
Towering cumulus, cumulonimbus, cumulonimbus mammatus
4 types of fog and how they form
Upslope- Warm moist air forced up in altitude and cooled and fall back down mtn as fog
Radiation- warm air mass cools to dewpoint at night
Precip-accompanies rain showers and steady rain
Advection- warm moist air moves over colder land mass or cold air moves over warm
body of water
When and how fog types dissipated
Upslope-wind reduced or moving air has little moisture
Radiation-warming temperatures mid to late morning
Precip-after precip ends
Advection- land warms up
Describe NDB
Non directional beacon
low frequency
bearing to station only
ADF
received from long distances
Subject to atmosphere disturbances
Describe VOR
Very high omni directional range
Very high frequency
360 radials
Distance limited "line of sight"
Very accurate
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