Avit 309 Comprehensive Exam 1 Guide

Avit 309 Comprehensive Exam 1 Guide AVIT 309 Exam 1 Guide - answerThe 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 - answer*Provides Life Support & Protection* FAA Classifies pilots as - answeroccupational radiation workers Decrease Radiation risks by: - answerWearing sunscreen / UVA protectant sunglasses. FAA AC 120-61A Predictable characteristics of the atmosphere - answerPressure, Temperature, Water Vapor Composition of the Atmosphere - answerOxygen 20.95% - Life Support Nitrogen 78.09% - Inert Carbon Dioxide .04% Respiration byproduct What influences our ability to perform with an increase in altitude - answerCombination of pressure and oxygen percentage How long does it take to fully acclimatize to a given altitude - answer*18.4 day per 5,280ft* What is the maximum altitude of acclimatization - answer*10,000ft* (If you go to live above 10k ft, you will not acclimatize) Long-Term physiologic changes with altitude - answerIncrease in RBC mass, Mitochondria, Capillaries & Arterial Pressure Short Term physiologic changes with altitude - answerHyperventilation Shortness of breath during exertion changed breathing pattern at night Awakening frequently at night Increased Urination Barometric pressure density characteristics of the atmosphere - answerSmall 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 - answerTemperature Lapse Rate: 2C per 1,000ft Isothermic Layer of Stratosphere: -55C Water Vapor Content decreases with altitude Troposphere - answerSL - 35,000ft Standard Temperature Lapse Rate Most Weather Events Ranges from 23 - 56,000ft Jetstream - Tropopause Straosphere - answer35,000 - 50 miles Common Cruise Altitude Extremely cold *Isotherm layer at -67F* Ionosphere - answerBlocks Radiation through the Van Allen Belts Exosphere - answer1,200 miles Altitude - Space Zone of Normal Adaption - answerUp to 10,000' Adapt to increase oxygen delivery Decreased oxygen delivery does not impair performance at these altitudes *Zone of Physiologic Deficiency* - answer*10,000 - 50,000'* Unable to adapt and function normally *Conventional life support is needed* Space Equivalent Zone - answerSpecialized life support equipment is needed *Boyle's Law* - answerPressure and volume of a gas are constant Explains trapped gas problems *Charles Law* - answerAs Gas is heated, volume increases Explains Variation of pressure gauges in extreme environments *Henry's Law* - answerThe amount of gas dissolved is proportional to the partial pressure of gas over the solution