Erau wx 201 exam - Study guides, Class notes & Summaries
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Weather Exam 2- WX 201 ERAU Questions With Solutions 100% Correct
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Weather Exam 2- WX 201 ERAU Questions 
With Solutions 100% Correct 
Radar Reflectivity The amount of energy received by the radar that is scattered back to it, 
usually by precipitation particles 
Attenuation Reduction of radar power by absorption of radiation by targets 
WSR-88D Weather Surveillance Radar 1988 Doppler 
dopplar radar specialized radar that can detect precipitation and movement of small 
particles and can approximate wind speed 
Aircraft Radar Low power(300-500w), 3cm waveleng...
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ERAU WX-201 TEST 1 EXAM 2024 WITH 100% ACCURATE SOLUTIONS
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Lapse rate - ANSWER ☑☑The rate at which temperature decreases with an increase in altitude. 
 
Wind direction - ANSWER ☑☑the direction from which the wind is blowing 
 
a variable gas in the Earth's atmosphere is - ANSWER ☑☑water vapor 
 
Troposhere - ANSWER ☑☑The atmosphere layer closest to Earths surface in which we live 
 
Air molecules are held near the earth's surface by ____. - ANSWER ☑☑Gravity 
 
The Temperature of the tropopause is much _____ than the temperatu...
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WX 201 Final ERAU Latest Exam Questions and Answers
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WX 201 Final ERAU Latest Exam Questions and Answers 
 
Layers of the atmosphere - Answer-Thermo(85k-100k) 
Meso(50k-85k) 
Strato(12k-50k) 
Tropo(0-12k) 
 
Troposphere - Answer-•Between surface & about 36,000' (11 km) 
-Where weather occurs (and most of the aviation takes place) 
-Pressure ranges between 200 to 1030 mb 
 
•Decreasing temperature with height 
-Heated from below because the ground absorbs more of the sun's rays than air 
 
•Has vertical air currents and turbulence 
-Hazardo...
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wx 201 test 2 erau exam questions with correct answers
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wx 201 test 2 erau exam questions with correct answers 
 
station pressure - Answer-the actual air pressure computed at the observing station 
 
sea level pressure - Answer-the standard level of pressure 29.92 inches 
 
ideal gas law - Answer-the relationship PV=nRT, which describes the behavior of an ideal gas 
 
mercury barometer - Answer-consists of a glass tube open at the bottom end and partially filled with mercury 
 
barometric pressure - Answer-the pressure due to the weight of the atmos...
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WX 201 Final ERAU Exam Questions and Answers
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WX 201 Final ERAU Exam Questions and Answers 
The Atmosphere 
aerosol (a.k.a. particulates) 
rain, drizzle, fog, snow, ice crystals, cloud droplets 
 
 
Permanent gas 
Nitrogen [N2]=78% 
Oxygen [02]=21% 
Others (Ar, Ne, He, Kr, H)=1% 
 
 
Variable gas 
[H2O] 
-0 to 4% (highly variable) 
-Most abundant variable gas• 
[CO2] 
-0.039% and rising 
[O3] 
-Highly variable, reactive gas 
-Upper atmosphere: protects life from UV light 
-Occurs naturally, absorbs harmful ultraviolet light from sun 
 
 
...
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wx 201 test 2 erau exam questions with correct answers
- Exam (elaborations) • 5 pages • 2024
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wx 201 test 2 erau exam questions with correct answers 
 
aneroid barometer - Answer-An instrument that measures changes in air pressure without using a liquid. 
-Measured in millibars 
 
barograph - Answer-An instrument that registers graphically and continuously the atmospheric pressure. 
 
pressure gradient force - Answer-the amount of pressure change occurring over a given distance 
 
hydrostatic equation - Answer-pressure drops more rapidly with increasing height at high latitudes and lower...
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Weather Exam 2- WX 201 ERAU Questions and Answers
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Weather Exam 2- WX 201 ERAU Questions and Answers 
Radar Reflectivity 
The amount of energy received by the radar that is scattered back to it, usually by precipitation particles 
 
 
Attenuation 
Reduction of radar power by absorption of radiation by targets 
 
 
WSR-88D 
Weather Surveillance Radar 1988 Doppler 
 
 
dopplar radar 
specialized radar that can detect precipitation and movement of small particles and can approximate wind speed 
 
 
Aircraft Radar 
Low power(300-500w), 3cm wavelengt...
-
WX 201 Final ERAU Latest Exam Questions with Complete Solutions
- Exam (elaborations) • 15 pages • 2024
- Available in package deal
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- $14.49
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The Atmosphere - Answer-aerosol (a.k.a. particulates) 
rain, drizzle, fog, snow, ice crystals, cloud droplets 
 
Permanent gas - Answer-Nitrogen [N2]=78% 
Oxygen [02]=21% 
Others (Ar, Ne, He, Kr, H)=1% 
 
Variable gas - Answer-[H2O] 
-0 to 4% (highly variable) 
-Most abundant variable gas• 
[CO2] 
-0.039% and rising 
[O3] 
-Highly variable, reactive gas 
-Upper atmosphere: protects life from UV light 
-Occurs naturally, absorbs harmful ultraviolet light from sun 
 
Greenhouse gases - Answer-H2...
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wx 201 test 2 erau exam questions with correct answers
- Exam (elaborations) • 5 pages • 2024
- Available in package deal
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- $10.49
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station pressure - Answer-the actual air pressure computed at the observing station 
 
sea level pressure - Answer-the standard level of pressure 29.92 inches 
 
ideal gas law - Answer-the relationship PV=nRT, which describes the behavior of an ideal gas 
 
mercury barometer - Answer-consists of a glass tube open at the bottom end and partially filled with mercury 
 
barometric pressure - Answer-the pressure due to the weight of the atmosphere; also called air pressure or atmospheric pressure 
 ...
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WX-201 Complete Exam Bundle Graded A+!!
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