Avit 309 Comprehensive Exam 1 UPDATED ACTUAL Exam Questions and CORRECT Answers

Avit 309 Comprehensive Exam 1 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
AVIT 309 Exam 1 Guide - CORRECT ANSWER - The following is a Rough Draft of all
Quiz Questions, Study Guide Answers, and Red highlighted text from the power points. Bold
questions I recommend studying extra. Be able to know all the physiological symptoms from a
list that correspond to each condition.


Atmospheric Functions - CORRECT ANSWER - *Provides Life Support & Protection*



FAA Classifies pilots as - CORRECT ANSWER - occupational radiation workers



Decrease Radiation risks by: - CORRECT ANSWER - Wearing sunscreen / UVA
protectant sunglasses. FAA AC 120-61A


Predictable characteristics of the atmosphere - CORRECT ANSWER - Pressure,
Temperature, Water Vapor


Composition of the Atmosphere - CORRECT ANSWER - Oxygen 20.95% - Life Support
Nitrogen 78.09% - Inert
Carbon Dioxide .04% Respiration byproduct


What influences our ability to perform with an increase in altitude - CORRECT
ANSWER - Combination of pressure and oxygen percentage



How long does it take to fully acclimatize to a given altitude - CORRECT ANSWER -
*18.4 day per 5,280ft*

,What is the maximum altitude of acclimatization - CORRECT ANSWER - *10,000ft* (If
you go to live above 10k ft, you will not acclimatize)


Long-Term physiologic changes with altitude - CORRECT ANSWER - Increase in RBC
mass, Mitochondria, Capillaries & Arterial Pressure


Short Term physiologic changes with altitude - CORRECT ANSWER - Hyperventilation
Shortness of breath during exertion
changed breathing pattern at night
Awakening frequently at night
Increased Urination


Barometric pressure density characteristics of the atmosphere - CORRECT ANSWER -
Small changes in altitude have a dramatic effect on performance. Rate of pressure decrease is not
linear. *(More change at lower altitudes)*


Physical Characteristics of the Atmosphere - CORRECT ANSWER - Temperature Lapse
Rate: 2C per 1,000ft
Isothermic Layer of Stratosphere: -55C
Water Vapor Content decreases with altitude


Troposphere - CORRECT ANSWER - SL - 35,000ft
Standard Temperature Lapse Rate
Most Weather Events
Ranges from 23 - 56,000ft
Jetstream - Tropopause


Straosphere - CORRECT ANSWER - 35,000 - 50 miles
Common Cruise Altitude

, Extremely cold
*Isotherm layer at -67F*


Ionosphere - CORRECT ANSWER - Blocks Radiation through the Van Allen Belts



Exosphere - CORRECT ANSWER - 1,200 miles Altitude - Space



Zone of Normal Adaption - CORRECT ANSWER - Up to 10,000'
Adapt to increase oxygen delivery
Decreased oxygen delivery does not impair performance at these altitudes


*Zone of Physiologic Deficiency* - CORRECT ANSWER - *10,000 - 50,000'*
Unable to adapt and function normally
*Conventional life support is needed*


Space Equivalent Zone - CORRECT ANSWER - Specialized life support equipment is
needed


*Boyle's Law* - CORRECT ANSWER - Pressure and volume of a gas are constant
Explains trapped gas problems


*Charles Law* - CORRECT ANSWER - As Gas is heated, volume increases
Explains Variation of pressure gauges in extreme environments


*Henry's Law* - CORRECT ANSWER - The amount of gas dissolved is proportional to
the partial pressure of gas over the solution
Decrease in pressure leads to - Evolved Gas