Avit 309 Final Test Questions with
Complete Solutions31
What are the first lines of defense against hearing loss in aviation? - ANSWERS -Earplugs or
Noise-cancelling headsets
What are the directions of vibration? - ANSWERS -Linear, rotational, combination
What two types of vibration affect humans? - ANSWERS -Localized or Whole-body
How would a pilot grip controls to reduce the effects of vibration? - ANSWERS -Loosely
According to the CDC, how much ionizing radiation does the average person in the U.S. receive
each year? - ANSWERS -3.11 mSv
Above what altitude has shown to produce increased amount of ionized radiation exposure? -
ANSWERS -FL300
Difference between Rods and Cones - ANSWERS -Rods are responsible for vision at low light
levels (Scotopic), while Cones are active at higher light levels and are capable of color vision and
high spatial acuity (Photopic). (opposites)
Which is, by far, the least tolerant vector for humans? - ANSWERS --Gz
What does Tactile or Auditory stimuli do to visual processing? - ANSWERS -Tactile stimulti
ENHANCE visual processing while Auditory stimuli HINDER visual processing
,What is the primary purpose of pressurization? - ANSWERS -To protect occupants from hypoxia
and DCS
What are the two types of pressurization systems? - ANSWERS -Sealed cabins and pressurized
cabins
What are the two pressurized cabin schedules? - ANSWERS -Isobaric control and isobaric
differential
True or false - a pilot never has to wear an oxygen mask if the cabin is pressurized? - ANSWERS -
False
What physiological issues are minimized when using pressurization? - ANSWERS -Hypoxia,
Trapped gas, Evolved gas, Fatigue, Thermal stress, Noise and Vibration
What makes an aircraft susceptible to decompressions? - ANSWERS -Improper inspections and
maintenance, age and cycles of aircraft, higher differentials
What are the three types of decompressions? - ANSWERS -Slow
Rapid
Explosive
Which type of decompression has caused the most fatalities in recent history? - ANSWERS -Slow
What is arguably the most reliable "alarm" for slow decompressions? - ANSWERS -The popping
and clicking of the ears on ascent
What is normally the most prolific sign of rapid decompressions? - ANSWERS -Explosive noise
,What is a pilot's most immediate need following a decompression? - ANSWERS -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? - ANSWERS -Five seconds
What is one of the main problems in self-identifying fatigue in oneself? - ANSWERS -No
biomarkers
What are the three types of fatigue? - ANSWERS -Transient
Cumulative
Circadian
What is the problem with instrument scanning when affected by channelized attention? -
ANSWERS -Scan discipline breaks down
What stages of sleep are the most refreshing for humans? - ANSWERS -Stage I and REM
What is one of the main intellectual markers of fatigue in yourself? - ANSWERS -Distraction
Based on studies, what is the percentage of professional pilots who have had to cope with
fatigue? - ANSWERS -85-92%
What percentage of pilots who experienced fatigue-related problems in flight actually filed
reports? - ANSWERS -20%
With regards to circadian rhythms, what are the two periods of maximum sleepiness called? -
ANSWERS -Windows of circadian lows (WOCL)
, How many milligrams of caffeine per day is considered relatively harmless? - ANSWERS -Less
than 500 mg
How much caffeine should be consumed every two-three hours for maximum effectiveness? -
ANSWERS -100-150 mg
NASA research indicates stress negatively affects core cognitive mechanisms of
________________ and ________________. - ANSWERS -Attention and Memory
What are the three recognized types of stress? - ANSWERS -Physical
Physiological
Physchological
True or false: Hypoxia may be a physiological stressor - ANSWERS -True
True or false: Boredom may be a psychological stressor - ANSWERS -True
True or false: Stress may be good for maximum performance - ANSWERS -True
What are examples of self-imposed stressors? - ANSWERS -Alcohol, drugs, tobacco, circadian
rhythm
What are the four phases of decreasing the effects of stress on team performance? - ANSWERS -
Academic
Procedure refinement
Cross-training
Practical training
Complete Solutions31
What are the first lines of defense against hearing loss in aviation? - ANSWERS -Earplugs or
Noise-cancelling headsets
What are the directions of vibration? - ANSWERS -Linear, rotational, combination
What two types of vibration affect humans? - ANSWERS -Localized or Whole-body
How would a pilot grip controls to reduce the effects of vibration? - ANSWERS -Loosely
According to the CDC, how much ionizing radiation does the average person in the U.S. receive
each year? - ANSWERS -3.11 mSv
Above what altitude has shown to produce increased amount of ionized radiation exposure? -
ANSWERS -FL300
Difference between Rods and Cones - ANSWERS -Rods are responsible for vision at low light
levels (Scotopic), while Cones are active at higher light levels and are capable of color vision and
high spatial acuity (Photopic). (opposites)
Which is, by far, the least tolerant vector for humans? - ANSWERS --Gz
What does Tactile or Auditory stimuli do to visual processing? - ANSWERS -Tactile stimulti
ENHANCE visual processing while Auditory stimuli HINDER visual processing
,What is the primary purpose of pressurization? - ANSWERS -To protect occupants from hypoxia
and DCS
What are the two types of pressurization systems? - ANSWERS -Sealed cabins and pressurized
cabins
What are the two pressurized cabin schedules? - ANSWERS -Isobaric control and isobaric
differential
True or false - a pilot never has to wear an oxygen mask if the cabin is pressurized? - ANSWERS -
False
What physiological issues are minimized when using pressurization? - ANSWERS -Hypoxia,
Trapped gas, Evolved gas, Fatigue, Thermal stress, Noise and Vibration
What makes an aircraft susceptible to decompressions? - ANSWERS -Improper inspections and
maintenance, age and cycles of aircraft, higher differentials
What are the three types of decompressions? - ANSWERS -Slow
Rapid
Explosive
Which type of decompression has caused the most fatalities in recent history? - ANSWERS -Slow
What is arguably the most reliable "alarm" for slow decompressions? - ANSWERS -The popping
and clicking of the ears on ascent
What is normally the most prolific sign of rapid decompressions? - ANSWERS -Explosive noise
,What is a pilot's most immediate need following a decompression? - ANSWERS -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? - ANSWERS -Five seconds
What is one of the main problems in self-identifying fatigue in oneself? - ANSWERS -No
biomarkers
What are the three types of fatigue? - ANSWERS -Transient
Cumulative
Circadian
What is the problem with instrument scanning when affected by channelized attention? -
ANSWERS -Scan discipline breaks down
What stages of sleep are the most refreshing for humans? - ANSWERS -Stage I and REM
What is one of the main intellectual markers of fatigue in yourself? - ANSWERS -Distraction
Based on studies, what is the percentage of professional pilots who have had to cope with
fatigue? - ANSWERS -85-92%
What percentage of pilots who experienced fatigue-related problems in flight actually filed
reports? - ANSWERS -20%
With regards to circadian rhythms, what are the two periods of maximum sleepiness called? -
ANSWERS -Windows of circadian lows (WOCL)
, How many milligrams of caffeine per day is considered relatively harmless? - ANSWERS -Less
than 500 mg
How much caffeine should be consumed every two-three hours for maximum effectiveness? -
ANSWERS -100-150 mg
NASA research indicates stress negatively affects core cognitive mechanisms of
________________ and ________________. - ANSWERS -Attention and Memory
What are the three recognized types of stress? - ANSWERS -Physical
Physiological
Physchological
True or false: Hypoxia may be a physiological stressor - ANSWERS -True
True or false: Boredom may be a psychological stressor - ANSWERS -True
True or false: Stress may be good for maximum performance - ANSWERS -True
What are examples of self-imposed stressors? - ANSWERS -Alcohol, drugs, tobacco, circadian
rhythm
What are the four phases of decreasing the effects of stress on team performance? - ANSWERS -
Academic
Procedure refinement
Cross-training
Practical training
