AVIT 309 Exam 1 Questions with Correct Answers Latest Update 2025/2026
According to FAA experts, what percentage of aviation accidents are caused by human
influence? - Answers 60-80%
When the U.S. military first invested time and resources into aviation training, what number of
pilots died from "pilot error" out of the first 100 fatalities? - Answers 90
What civilian aviation safety organization was the first, and when were they established? -
Answers Royal Aeronautical Society in 1866
According to NASA's studies on loss of control inflight (LOC-I) accidents, what percentage
occurred from the aircrew's "inappropriate response or interaction with aircraft equipment? -
Answers 46%
How much does temperature decrease per 1,000 feet as we ascend into the atmosphere? -
Answers 3-5 degree
Where does temperature stabilize in the atmosphere? - Answers The top of the troposphere
Where is atmospheric pressure the densest? - Answers Below 10,000ft
How long does a human take to fully physiologically acclimatize to a given altitude? - Answers
18.4 day per mile of altitude
To what altitude can humans fully physiologically acclimatize - Answers 10,000
What is percentage of oxygen and nitrogen in the atmosphere? - Answers O2 21% N2 78%
What altitudes apply to the Zone of Physiologic Efficiency? - Answers SL-10,000
What altitudes apply to the Physiological Deficient Zone? - Answers 10,000-50,000
Where does the Space Equivalent Zone begin? - Answers 50,000
What is the partial pressure of atmospheric oxygen at SL? - Answers 159mmHg
What physiological issue does Boyle's Law apply to? - Answers Trapped gas
What physiological issue does Henry's Law apply to? - Answers Evolved gas
What physiological issue does Charles' Law apply to? - Answers Pressure gauge fluctuation
What physiological issue does Graham's Law apply to? - Answers respiration
What physiological issue does Dalton's Law apply to? - Answers Hypoxia
What is the basic definition of respiration? - Answers An exchange of gases between a living
organism and its environment
, Proper oxygenation of what cell(s) in the respiration process are most important for aviators? -
Answers Brain cells/ neurons
The primary control for respiration in humans is regulated by what gas? - Answers Carbon
dioxide
The secondary control for respiration in humans is regulated by what gas? - Answers oxygen
T or F: human respiration can be voluntarily controlled? - Answers TRUE
What are the tiny air sacs in the lungs where oxygen diffuses into the bloodstream called? -
Answers Alveoli
What are the four phases of respiration? - Answers Ventilation, respiration, transportation,
utilization
What cell is responsible for transporting oxygen in the cardiovascular system? - Answers Red
blood cell
What do oxygen molecules bind to in the transport process? - Answers Hemoglobin
What four elements need to be maintained in humans for homeostasis with your environment -
Answers Oxygen, nutrition, rest, hydration
What is the first human function lost to hypoxia? - Answers cognition
What are the four types of hypoxia? - Answers Hypoxic, hypemic, histotoxic, stagnant
Which type of hypoxia related to altitude? - Answers Hypoxic
Which type of hypoxia is caused by carbon monoxide poisoning? - Answers Hypemic
True or false: hypoxia may affect higher cognitive function at altitudes as low as 5,000'. -
Answers True
Below what oxygen saturation level does collapse normally occur at? - Answers below 60%
Alcohol is an example of which type of hypoxia? - Answers histotoxic
True or false: the effects of medications may exacerbate the effects of hypoxia at altitude. -
Answers true
What three steps should be taken during a lithium ion battery thermal runaway event? - Answers
Isolate, extinguish, cool
Hyperventilation may cause what type of hypoxia? - Answers stagnant
What is the most dangerous characteristic of hypoxia? - Answers Insidious onset
According to FAA experts, what percentage of aviation accidents are caused by human
influence? - Answers 60-80%
When the U.S. military first invested time and resources into aviation training, what number of
pilots died from "pilot error" out of the first 100 fatalities? - Answers 90
What civilian aviation safety organization was the first, and when were they established? -
Answers Royal Aeronautical Society in 1866
According to NASA's studies on loss of control inflight (LOC-I) accidents, what percentage
occurred from the aircrew's "inappropriate response or interaction with aircraft equipment? -
Answers 46%
How much does temperature decrease per 1,000 feet as we ascend into the atmosphere? -
Answers 3-5 degree
Where does temperature stabilize in the atmosphere? - Answers The top of the troposphere
Where is atmospheric pressure the densest? - Answers Below 10,000ft
How long does a human take to fully physiologically acclimatize to a given altitude? - Answers
18.4 day per mile of altitude
To what altitude can humans fully physiologically acclimatize - Answers 10,000
What is percentage of oxygen and nitrogen in the atmosphere? - Answers O2 21% N2 78%
What altitudes apply to the Zone of Physiologic Efficiency? - Answers SL-10,000
What altitudes apply to the Physiological Deficient Zone? - Answers 10,000-50,000
Where does the Space Equivalent Zone begin? - Answers 50,000
What is the partial pressure of atmospheric oxygen at SL? - Answers 159mmHg
What physiological issue does Boyle's Law apply to? - Answers Trapped gas
What physiological issue does Henry's Law apply to? - Answers Evolved gas
What physiological issue does Charles' Law apply to? - Answers Pressure gauge fluctuation
What physiological issue does Graham's Law apply to? - Answers respiration
What physiological issue does Dalton's Law apply to? - Answers Hypoxia
What is the basic definition of respiration? - Answers An exchange of gases between a living
organism and its environment
, Proper oxygenation of what cell(s) in the respiration process are most important for aviators? -
Answers Brain cells/ neurons
The primary control for respiration in humans is regulated by what gas? - Answers Carbon
dioxide
The secondary control for respiration in humans is regulated by what gas? - Answers oxygen
T or F: human respiration can be voluntarily controlled? - Answers TRUE
What are the tiny air sacs in the lungs where oxygen diffuses into the bloodstream called? -
Answers Alveoli
What are the four phases of respiration? - Answers Ventilation, respiration, transportation,
utilization
What cell is responsible for transporting oxygen in the cardiovascular system? - Answers Red
blood cell
What do oxygen molecules bind to in the transport process? - Answers Hemoglobin
What four elements need to be maintained in humans for homeostasis with your environment -
Answers Oxygen, nutrition, rest, hydration
What is the first human function lost to hypoxia? - Answers cognition
What are the four types of hypoxia? - Answers Hypoxic, hypemic, histotoxic, stagnant
Which type of hypoxia related to altitude? - Answers Hypoxic
Which type of hypoxia is caused by carbon monoxide poisoning? - Answers Hypemic
True or false: hypoxia may affect higher cognitive function at altitudes as low as 5,000'. -
Answers True
Below what oxygen saturation level does collapse normally occur at? - Answers below 60%
Alcohol is an example of which type of hypoxia? - Answers histotoxic
True or false: the effects of medications may exacerbate the effects of hypoxia at altitude. -
Answers true
What three steps should be taken during a lithium ion battery thermal runaway event? - Answers
Isolate, extinguish, cool
Hyperventilation may cause what type of hypoxia? - Answers stagnant
What is the most dangerous characteristic of hypoxia? - Answers Insidious onset
