AEROSPACE PHYSIOLOGY EXAM 1
QUESTIONS WITH VERIFIED
ANSWERS
\.3 Functions of the atmosphere - ANSWERS-1. Contains oxygen
(essential for animal life), and carbon dioxide (essential for plant life)
2. Is a shield that attenuates cosmic and ultraviolet radiation
3. Precipitation occurs, helping maintain the temperature and climate
\.Which gasses make up the atmosphere and at what percentages? -
ANSWERS-78% nitrogen, 21% oxygen, 1% other gasses, including 0.03%
carbon dioxide (up to 300,000 ft)
\.3 common units for measuring atmospheric pressure - ANSWERS-1.
mmhG
2. inhG
3. PSI
\.US Standard Atmosphere @ sea level - ANSWERS-15*C and 760
mmhG (29.92 inhG)
, \.Standard temperature lapse rate - ANSWERS-2*C/1,000ft
\.Physiological divisions of the atmosphere - ANSWERS-1. Physiological
Zone (sea level - 10,000 ft)
2. Physiological Deficient Zone (10,000 - 50,000 ft)
3. Space Equivalent Zone (50,000+ ft)
\.Partial Pressure - ANSWERS-Amount of pressure that a single gas in a
mixture contributes to the total pressure of the mixture.
\.Dalton's Law - ANSWERS-Total pressure of a mixture is equal to the
sum of the partial pressure of the gasses in the mixture.
\.Boyle's Law - ANSWERS-At a constant temperature, the volume of a
gas is inversely proportionate to the pressure surrounding it.
\.Henry's Law - ANSWERS-The amount of gas in a solution varies directly
with the partial pressure of that gas over the solution.
\.Law of Gaseous Diffusion - ANSWERS-Gas will diffuse from an area of
higher concentration to an area of lower concentration until equilibrium
is reached. The speed of diffusion depends on the relative
concentrations of those gasses.
QUESTIONS WITH VERIFIED
ANSWERS
\.3 Functions of the atmosphere - ANSWERS-1. Contains oxygen
(essential for animal life), and carbon dioxide (essential for plant life)
2. Is a shield that attenuates cosmic and ultraviolet radiation
3. Precipitation occurs, helping maintain the temperature and climate
\.Which gasses make up the atmosphere and at what percentages? -
ANSWERS-78% nitrogen, 21% oxygen, 1% other gasses, including 0.03%
carbon dioxide (up to 300,000 ft)
\.3 common units for measuring atmospheric pressure - ANSWERS-1.
mmhG
2. inhG
3. PSI
\.US Standard Atmosphere @ sea level - ANSWERS-15*C and 760
mmhG (29.92 inhG)
, \.Standard temperature lapse rate - ANSWERS-2*C/1,000ft
\.Physiological divisions of the atmosphere - ANSWERS-1. Physiological
Zone (sea level - 10,000 ft)
2. Physiological Deficient Zone (10,000 - 50,000 ft)
3. Space Equivalent Zone (50,000+ ft)
\.Partial Pressure - ANSWERS-Amount of pressure that a single gas in a
mixture contributes to the total pressure of the mixture.
\.Dalton's Law - ANSWERS-Total pressure of a mixture is equal to the
sum of the partial pressure of the gasses in the mixture.
\.Boyle's Law - ANSWERS-At a constant temperature, the volume of a
gas is inversely proportionate to the pressure surrounding it.
\.Henry's Law - ANSWERS-The amount of gas in a solution varies directly
with the partial pressure of that gas over the solution.
\.Law of Gaseous Diffusion - ANSWERS-Gas will diffuse from an area of
higher concentration to an area of lower concentration until equilibrium
is reached. The speed of diffusion depends on the relative
concentrations of those gasses.
