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At the top of the troposphere, there is a transition zone called the ______.
tropopause
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The two lower layers of the atmosphere are the ______ and ______,
troposphere; stratosphere
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What describes the flight conditions found in the stratosphere?
Generally smooth with excellent visibility.
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What is the standard temperature lapse rate of the atmosphere in °Celsius per 1000 feet?
2.0
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A condition where the air temperature aloft is higher than that of the lower atmosphere is generally referred to as ______,
a temperature inversion
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What happens to the change in atmospheric pressure with increasing altitude?
Decreases
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Correctly list the standard day conditions of sea level pressure, temperature, pressure lapse rate, and temperature lapse rate?
29.92 in-Hg, 15° C, 1 in-Hg/1000', 2° C/1000'
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The horizontal distribution of pressure on the Earth’s surface is depicted on weather charts by
isobars
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The weight of the air mass over any point on the Earth’s surface defines ______.
atmospheric pressure
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The quantities 1013.2 mb and 29.92 in-Hg are two different expressions for the ______.
- standard atmospheric pressure at MSL and at a standard air temperature of
- 15° C
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In the lower 5000 feet of the atmosphere, a decrease of one inch of mercury in atmospheric pressure would cause a change in an altimeter reading of approximately ________ feet assuming constant elevation and altimeter setting).
plus 1000
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Which one of the following correctly describes the meteorological feature of a trough?
An elongated area of relatively low pressure
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What pressure would have a value closest to that used as a Kollsman window setting for an altimeter in the U.S. (assuming an airfield above sea level)?
Sea level pressure
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Density altitude is ______.
an indicator of aircraft performance, not a height reference
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In which atmospheric layer does weather normally occur?
Troposphere
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If the air is colder than the standard atmosphere, the aircraft will be ______ than the altimeter indicates?
lower
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The decrease in atmospheric temperature with increasing altitude is called?
Lapse rate
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The transition zone between the troposhere and statosphere is identified by an abrupt change in lapse rate and frequently involves what?
Turbulence, contrails, and haze
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What is station pressure?
atmospheric pressure at an airfield or station, what is actually read on the altimeter
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Where do fronts exist?
In troughs of low pressure
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