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Cards In This Set
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How high above sea level does the atmosphere extend?
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348 miles (the edge of space)
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The 3 gases make up 99% of the atmosphere.
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Nitrogen, oxygen, argon
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The percent composition that oxygen accounts for in the atmosphere.
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21%
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The percent composition that nitrogen accounts for in the atmosphere.
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78%
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The percent composition that argon accounts for in the atmosphere.
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0.93%
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The 3 physiological zones of the atmosphere.
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Physiologic zone, physiologically deficient zone, space equivalent zone
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Properties: Physiologic zone
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Sea level--> 10,000ft; barometric pressure of 760 mmHg--> 523 mmHg
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This is the flight level that FAR Part 135 specifies that commercial pilots must begin using supplemental oxygen.
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Above 10,000 ft
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Properties: Deficient Zone
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1- Barometric pressure decreases to levels that will result in hypoxic hypoxia, 2-effects of trapped gases become more pronounced
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List the first two layers of the atmosphere
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Troposphere and tropopause
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The depth of the troposphere
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Sea level to 26,400 feet over the polls, sea level to 52,800 feet over the equator
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The densest portion of the atmosphere
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Troposphere
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Temperature variance in the troposphere
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62°F to -68.8°F
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Level where night vision impairment occurs without submental oxygen
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5000 feet
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Properties: space equivalent zone
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Extends beyond 50,000 feet to 120 miles, 100% supplemental oxygen required, requires pressure suits and sealed cabins
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