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WX 301 EXAM 1 2024/2025 WITH 100% ACCURATE SOLUTIONS
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WX 301 EXAM 1 2024/2025 WITH 100% ACCURATE SOLUTIONS
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WX 301 EXAM 1 2024/2025 WITH 100% ACCURATESOLUTIONS
List three common units of atmospheric pressure - Precise Answer
✔✔inches of mercury (HG), Millibars (MB), and hecto-pascals (hPa)
difference between station pressure and sea level pressure - Precise
Answer ✔✔station pressure: the presssure measured directly by a
barometer. Minor corrections for temperature and latitude
Sea level pressure: the station pressure corrected for altitude. Multiple
ways to correct for altitude
Explain the difference between altimeter setting and "actual" sea level
pressure - Precise Answer ✔✔altimeter setting: FAA uses a constant
"standard Atmosphere. Indepent of weather and location
Sea Level pressure: NWS uses current and past 12 hr temperature
combined with climatology for site. Weather and location
Identify the altitude a pressure altimeter will read when the Kollsman
window is set to the "standard" mean sea-level pressure - Precise
Answer ✔✔29.92
, Identify the altitude a pressure altimeter will read when the Kollsman
window is set to the current altimeter setting. - Precise Answer ✔✔mean
sea level
List the three most common errors in altimeter reading - Precise Answer
✔✔sea level pressure, tempature (cold and hot), and strong vertical gust
(mountain and thunderstorm)
Identify the only altimeter error that the altimeter setting corrects -
Precise Answer ✔✔sea level pressure
Describe the effects of both changes in surface pressure and changes in
temperature on altimeter readings. - Precise Answer ✔✔Temperature:
during cold weather vertical seperation is nesscary and make sure to
have extra altitude.
Surface Pressure: when flying in high you are fine but flying in cold you
need to adjust altitude.
Describe the impact of non-standard temperatures on density altitude -
Precise Answer ✔✔Low density altitude increases performance--air is
more dense and provides greater lift and thrust
High density altitude can be hazardous, especially if an aircraft is
critically loaded.
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