AVIT 309 FINAL QUESTIOS & ANSWERS
What is the primary purpose of pressurization? - Answer -To protect occupants from
hypoxia and DCS
What are the two types of pressurization systems? - Answer -Sealed cabins and
pressurized cabins
What are the two pressurized cabin schedules? - Answer -Isobaric control and isobaric
differential
True or false - a pilot never has to wear an oxygen mask if the cabin is pressurized? -
Answer -False
What physiological issues are minimized when using pressurization? - Answer -
Hypoxia, Trapped gas, Evolved gas, Fatigue, Thermal stress, Noise and Vibration
What makes an aircraft susceptible to decompressions? - Answer -Improper
inspections and maintenance, age and cycles of aircraft, higher differentials
What are the three types of decompressions? - Answer -Slow
Rapid
Explosive
Which type of decompression has caused the most fatalities in recent history? - Answer
-Slow
What is arguably the most reliable "alarm" for slow decompressions? - Answer -The
popping and clicking of the ears on ascent
What is normally the most prolific sign of rapid decompressions? - Answer -Explosive
noise
What is a pilot's most immediate need following a decompression? - Answer -100%
oxygen
According to FAA regulations, a quick-don oxygen mask should be able to be donned,
sealed and properly configured with one hand in how many seconds? - Answer -Five
seconds
What is one of the main problems in self-identifying fatigue in oneself? - Answer -No
biomarkers
What are the three types of fatigue? - Answer -Transient
Cumulative
,Circadian
What is the problem with instrument scanning when affected by channelized attention? -
Answer -Scan discipline breaks down
What stages of sleep are the most refreshing for humans? - Answer -Stage I and REM
What is one of the main intellectual markers of fatigue in yourself? - Answer -
Distraction
NASA research indicates stress negatively affects core cognitive mechanisms of
________________ and ________________. - Answer -Attention and Memory
What are the three recognized types of stress? - Answer -Physical
Physiological
Physchological
True or false: Hypoxia may be a physiological stressor - Answer -True
True or false: Boredom may be a psychological stressor - Answer -True
True or false: Stress may be good for maximum performance - Answer -True
What are examples of self-imposed stressors? - Answer -Alcohol, drugs, tobacco,
circadian rhythm
What are the four phases of decreasing the effects of stress on team performance? -
Answer -Academic
Procedure refinement
Cross-training
Practical training
What is considered the most important component of individual stress management? -
Answer -Resilience
What are the four core components of individual resilience-building characteristics? -
Answer -Connection
Wellness
Healthy thinking
Meaning
What are environmental factors to consider when calculating the effects of thermal
stress? - Answer -Temperature, wind, water (precipitation)
What do the acute effects of thermal stress include? - Answer -Perceptual, physical,
environmnetal
, What percentage of expended energy actually goes towards performing the actual
work? - Answer -25%
What are the three heat transfer mechanisms? - Answer -Conduction
Convection
Radiation
What is our average body core temperature range? - Answer -95-103.9 degrees
At what core body temperature may organ damage and loss of neural function occur? -
Answer -104 degrees
Based on studies, what is the percentage of professional pilots who have had to cope
with fatigue? - Answer -85-92%
What percentage of pilots who experienced fatigue-related problems in flight actually
filed reports? - Answer -20%
With regards to circadian rhythms, what are the two periods of maximum sleepiness
called? - Answer -Windows of circadian lows (WOCL)
How many milligrams of caffeine per day is considered relatively harmless? - Answer -
Less than 500 mg
How much caffeine should be consumed every two-three hours for maximum
effectiveness? - Answer -100-150 mg
An elevation in one's core body temperature in an effort to destroy a viral species is
known as a ________. - Answer -Fever
What do humans suffer from when they enter a deficit of bodily fluids? - Answer -
Dehydration
Under the right environmental conditions, humans may become dehydrated in as fast as
______ minutes. - Answer -30
What is the body's primary intial response to cold environmental exposure? - Answer -
Vasoconstriction
What are the three methods humans generate heat? - Answer -Metabolic
Shivering
Physical activity
Hypothermia occurs when core body temperature drops below _______ degrees F. -
Answer -95
What is the primary purpose of pressurization? - Answer -To protect occupants from
hypoxia and DCS
What are the two types of pressurization systems? - Answer -Sealed cabins and
pressurized cabins
What are the two pressurized cabin schedules? - Answer -Isobaric control and isobaric
differential
True or false - a pilot never has to wear an oxygen mask if the cabin is pressurized? -
Answer -False
What physiological issues are minimized when using pressurization? - Answer -
Hypoxia, Trapped gas, Evolved gas, Fatigue, Thermal stress, Noise and Vibration
What makes an aircraft susceptible to decompressions? - Answer -Improper
inspections and maintenance, age and cycles of aircraft, higher differentials
What are the three types of decompressions? - Answer -Slow
Rapid
Explosive
Which type of decompression has caused the most fatalities in recent history? - Answer
-Slow
What is arguably the most reliable "alarm" for slow decompressions? - Answer -The
popping and clicking of the ears on ascent
What is normally the most prolific sign of rapid decompressions? - Answer -Explosive
noise
What is a pilot's most immediate need following a decompression? - Answer -100%
oxygen
According to FAA regulations, a quick-don oxygen mask should be able to be donned,
sealed and properly configured with one hand in how many seconds? - Answer -Five
seconds
What is one of the main problems in self-identifying fatigue in oneself? - Answer -No
biomarkers
What are the three types of fatigue? - Answer -Transient
Cumulative
,Circadian
What is the problem with instrument scanning when affected by channelized attention? -
Answer -Scan discipline breaks down
What stages of sleep are the most refreshing for humans? - Answer -Stage I and REM
What is one of the main intellectual markers of fatigue in yourself? - Answer -
Distraction
NASA research indicates stress negatively affects core cognitive mechanisms of
________________ and ________________. - Answer -Attention and Memory
What are the three recognized types of stress? - Answer -Physical
Physiological
Physchological
True or false: Hypoxia may be a physiological stressor - Answer -True
True or false: Boredom may be a psychological stressor - Answer -True
True or false: Stress may be good for maximum performance - Answer -True
What are examples of self-imposed stressors? - Answer -Alcohol, drugs, tobacco,
circadian rhythm
What are the four phases of decreasing the effects of stress on team performance? -
Answer -Academic
Procedure refinement
Cross-training
Practical training
What is considered the most important component of individual stress management? -
Answer -Resilience
What are the four core components of individual resilience-building characteristics? -
Answer -Connection
Wellness
Healthy thinking
Meaning
What are environmental factors to consider when calculating the effects of thermal
stress? - Answer -Temperature, wind, water (precipitation)
What do the acute effects of thermal stress include? - Answer -Perceptual, physical,
environmnetal
, What percentage of expended energy actually goes towards performing the actual
work? - Answer -25%
What are the three heat transfer mechanisms? - Answer -Conduction
Convection
Radiation
What is our average body core temperature range? - Answer -95-103.9 degrees
At what core body temperature may organ damage and loss of neural function occur? -
Answer -104 degrees
Based on studies, what is the percentage of professional pilots who have had to cope
with fatigue? - Answer -85-92%
What percentage of pilots who experienced fatigue-related problems in flight actually
filed reports? - Answer -20%
With regards to circadian rhythms, what are the two periods of maximum sleepiness
called? - Answer -Windows of circadian lows (WOCL)
How many milligrams of caffeine per day is considered relatively harmless? - Answer -
Less than 500 mg
How much caffeine should be consumed every two-three hours for maximum
effectiveness? - Answer -100-150 mg
An elevation in one's core body temperature in an effort to destroy a viral species is
known as a ________. - Answer -Fever
What do humans suffer from when they enter a deficit of bodily fluids? - Answer -
Dehydration
Under the right environmental conditions, humans may become dehydrated in as fast as
______ minutes. - Answer -30
What is the body's primary intial response to cold environmental exposure? - Answer -
Vasoconstriction
What are the three methods humans generate heat? - Answer -Metabolic
Shivering
Physical activity
Hypothermia occurs when core body temperature drops below _______ degrees F. -
Answer -95
