AVIT 309 Final Exam Questions with Correct Answers Latest Update 2025/2026
How much does temperature decrease per 1,000 feet as we ascend into the atmosphere? -
Answers 3.5 degrees F
Where does temperature stabilize in the atmosphere? - Answers At the top of the troposphere
Where is atmospheric pressure the densest? - Answers Below 10,000 feet
How long does a human take to fully physiologically acclimatize to a given altitude? - Answers
18.4 days 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 feet
What altitudes apply to the physiological deficient zone? - Answers 10,000 - 50,000 ft
Where does the space equivalent zone begin? - Answers 50,000 ft
What is the partial pressure of atmospheric oxygen at SL? - Answers 159 mmHg
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
True or false: human respiration can be voluntarily controlled? - Answers True
What are the tiny air sacs in the lungs where oxygen diffuses into the blood stream called? -
Answers Alveoli
, What are the four phases of respiration? - Answers Ventilation, respiration, transportation,
utilization
What cell is responsible to transport 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 on 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 relates 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 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
True or false: a lack of nutrition may affect an individual's effective performance time. - Answers
True
What is the first step one should take in treating hypoxia of any type? - Answers 100% Oxygen
Is it always possible to descend to 10,000 feet in emergencies? - Answers No
True or false: Effective Performance Times are guaranteed times a pilot can depend on to
maintain consciousness at a given altitude. - Answers False
How many breaths-per-minute does the average human maintain? - Answers 12-20
What is the primary gas chemically controlling human breathing rate? - Answers Carbon Dioxide
How much does temperature decrease per 1,000 feet as we ascend into the atmosphere? -
Answers 3.5 degrees F
Where does temperature stabilize in the atmosphere? - Answers At the top of the troposphere
Where is atmospheric pressure the densest? - Answers Below 10,000 feet
How long does a human take to fully physiologically acclimatize to a given altitude? - Answers
18.4 days 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 feet
What altitudes apply to the physiological deficient zone? - Answers 10,000 - 50,000 ft
Where does the space equivalent zone begin? - Answers 50,000 ft
What is the partial pressure of atmospheric oxygen at SL? - Answers 159 mmHg
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
True or false: human respiration can be voluntarily controlled? - Answers True
What are the tiny air sacs in the lungs where oxygen diffuses into the blood stream called? -
Answers Alveoli
, What are the four phases of respiration? - Answers Ventilation, respiration, transportation,
utilization
What cell is responsible to transport 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 on 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 relates 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 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
True or false: a lack of nutrition may affect an individual's effective performance time. - Answers
True
What is the first step one should take in treating hypoxia of any type? - Answers 100% Oxygen
Is it always possible to descend to 10,000 feet in emergencies? - Answers No
True or false: Effective Performance Times are guaranteed times a pilot can depend on to
maintain consciousness at a given altitude. - Answers False
How many breaths-per-minute does the average human maintain? - Answers 12-20
What is the primary gas chemically controlling human breathing rate? - Answers Carbon Dioxide
