TC 3-04.93 Aeromedical Training for Flight Personnel (Aug 2009)
Verified Exam Questions and Answers Latest update 2026/2027
Question:
1. What is the Mean Temperature Lapse Rate in p. 2-2 the Troposphere (Sea Level to about 26,400ft)?
Answer:
-1.98 degrees Celsius per 1,000 feet
Question:
2. What are the Physiological Zones of the Atmosphere?
Answer:
1. Eflcient Zone (Sea Level to 10,000 ft)
2. Deficient Zone (10,000 to 50,000 ft)
3. Space Equivalent Zone (50,000 ft to outer edge of atmosphere)
p. 2-7
Question:
3. What are the types of Spatial Disorientation? Explain each.
Answer:
1. TYPE I (UNRECOGNIZED)-an aviator does not perceive any indication of SD or
think anything is wrong. Type I SD is the most dangerous type of disorientation.
2. TYPE II (RECOGNIZED)-the pilot perceives a problem resulting from SD but might
not recognize it as SD.
3. TYPE III (INCAPACITATING)-the pilot experiences such an overwhelming sensation of
movement that he or she cannot orient using visual cues or the aircraft
instruments. Type III SD is not fatal if the copilot can gain control of the aircraft. p. 9-1
Question:
4. What are the categories of Vestibular Illusions?
Answer:
Somatogyral Illusions Somatogravic Illusions p. 9-12
Question:
5. What causes Somatogyral illusions?
Answer:
Somatogyral illusions occur when angular acceleration and deceleration stimulates the semicircular
canals. p. 9-12
, Question:
6. What are the types of somatogyral illusions?
Answer:
Leans Graveyard spins Coriolis illusion p. 9-12
Question:
7. What is the most dangerous of all vestibular il- head-over-heels tumbling sensation. lusions?
Answer:
Coriolis illusions are the most dangerous of all vestibular illusions and cause overwhelming
disorientation. Causes the pilot to experience an overwhelming p. 9-14
Question:
8. What causes Somatogravic Illusions?
Answer:
Somatogravic illusions are caused when changes in gravity or linear acceleration and deceleration
stimulate the otolith organ. p. 9-15
Question:
9. What are the types of somatogravic illusions?
Answer:
Oculogravic Elevator illusion Oculoagravic p. 9-15
Question:
10. What systems are the proprioceptive illusions closely associated with?
Answer:
Closely associated with the vestibular system and, to a lesser degree, the visual system. p. 9-16
Question:
11.
What is the best visual acuity for unaided vision?
Answer:
Visual acuity decreases to 20/200 or less, and color perception is lost. p. 8-5
Verified Exam Questions and Answers Latest update 2026/2027
Question:
1. What is the Mean Temperature Lapse Rate in p. 2-2 the Troposphere (Sea Level to about 26,400ft)?
Answer:
-1.98 degrees Celsius per 1,000 feet
Question:
2. What are the Physiological Zones of the Atmosphere?
Answer:
1. Eflcient Zone (Sea Level to 10,000 ft)
2. Deficient Zone (10,000 to 50,000 ft)
3. Space Equivalent Zone (50,000 ft to outer edge of atmosphere)
p. 2-7
Question:
3. What are the types of Spatial Disorientation? Explain each.
Answer:
1. TYPE I (UNRECOGNIZED)-an aviator does not perceive any indication of SD or
think anything is wrong. Type I SD is the most dangerous type of disorientation.
2. TYPE II (RECOGNIZED)-the pilot perceives a problem resulting from SD but might
not recognize it as SD.
3. TYPE III (INCAPACITATING)-the pilot experiences such an overwhelming sensation of
movement that he or she cannot orient using visual cues or the aircraft
instruments. Type III SD is not fatal if the copilot can gain control of the aircraft. p. 9-1
Question:
4. What are the categories of Vestibular Illusions?
Answer:
Somatogyral Illusions Somatogravic Illusions p. 9-12
Question:
5. What causes Somatogyral illusions?
Answer:
Somatogyral illusions occur when angular acceleration and deceleration stimulates the semicircular
canals. p. 9-12
, Question:
6. What are the types of somatogyral illusions?
Answer:
Leans Graveyard spins Coriolis illusion p. 9-12
Question:
7. What is the most dangerous of all vestibular il- head-over-heels tumbling sensation. lusions?
Answer:
Coriolis illusions are the most dangerous of all vestibular illusions and cause overwhelming
disorientation. Causes the pilot to experience an overwhelming p. 9-14
Question:
8. What causes Somatogravic Illusions?
Answer:
Somatogravic illusions are caused when changes in gravity or linear acceleration and deceleration
stimulate the otolith organ. p. 9-15
Question:
9. What are the types of somatogravic illusions?
Answer:
Oculogravic Elevator illusion Oculoagravic p. 9-15
Question:
10. What systems are the proprioceptive illusions closely associated with?
Answer:
Closely associated with the vestibular system and, to a lesser degree, the visual system. p. 9-16
Question:
11.
What is the best visual acuity for unaided vision?
Answer:
Visual acuity decreases to 20/200 or less, and color perception is lost. p. 8-5
