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25 Cards in this Set
- Front
- Back
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All weather occurs in which layer of the atmosphere?
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Troposphere
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Atmospheric pressure is measured using either an aneroid barometer or a _______ barometer?
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Mercurial
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What are the two basic units used to measure and report atmospheric pressure?
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Inches of mercury and millibars
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When an aircraft flying below 18,000 ft flies from a high pressure area into a low pressure area and the altimeter is not corrected, the altimeter reading will be ________?
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too high
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An aircraft is flying above 18,000 ft. what should the altimeter setting be?
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29.92 or the standard atmospheric pressure
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When an aircraft flying below 18,000 ft flies from a low temperature area into a high temperature area and the altimeter is not corrected, the altimeter reading will be ______?
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too low
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What type of cloud appears as white wisps against the sky?
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Cirrus
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What type of cloud appears as a smooth, thin-layered cloud covering all or most of the sky, giving the sky a milky appearance?
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Cirrostratus
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What type of cloud appears as a thick gray or blue-gray smooth overcast?
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Altostratus
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What type of cloud resembles mountains or towers?
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Cumulonimbus
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A front whose motion is such that cold air displaces warm air at the surface is called a/an _________?
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cold front
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A front that has little or no motion is called a/an ________?
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Stationary front
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What is the difference between the actual temperature and the dew point?
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Dew point depression
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Which type of fog is the most common problem for air traffic control?
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Radiation Fog
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Which is considered the most serious of the four types of airframe ice?
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Clear
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Which type of airframe ice forms as each super-cooled water droplet that strikes the airfoil freezes completely before another droplet strikes in the same place?
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Rime
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Which type of turbulence occurs because of surface heating?
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Thermal
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Which type of turbulence is caused by a severe change in either wind speed or wind direction?
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Low-level wind shear
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What term is frequently used by pilots to report turbulence characterized by rhythmic bumpiness with little altitude change?
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Light or moderate chop
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How often are SPECI weather observations issued?
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When a significant change in the weather occurs between the top of the hour and 44 minutes past the hour.
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In the sky condition weather group of a weather observation, sky cover of 2/8 would be classified as what?
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Few
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What code means ice on runway, no decelermeter reading available?
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IR//
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What type of weather forecast is issued by the NWS for specific locations (terminals)?
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TAF
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Which military wind condition is issued when non-thunderstorm winds are sustained between 18 an 33 knots or numerous gust equal to or greater than 24 knots are expected within 12 hours?
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High-Wind Condition I
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Which Tropical Cyclone condition is set when destructive winds are possible within 24 hours?
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Condition II
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