AVIT 309 COMPREHENSIVE STUDY GUIDE
2026 QUESTIONS WITH CORRECT
SOLUTIONS GRADED A+
◉what are the three primary sources of orientation in aviation.
Answer: propriception, vestibular, visual
◉what percentage of inflight orientation does vision provide.
Answer: 90%
◉proprioceptive senses allow humans to sense what. Answer:
orientation and motion through proprioceptors embedded
throughout the human body
◉vestibular senses allow humans to sense what. Answer: angular
acceleration, head position, spatial orientation
◉what two components make up the vestibular apparatus. Answer:
otolith organs
semicircular canals
,◉what would be the speed of a turn for sub-threshold acceleration.
Answer: less than three degrees per second
◉what are the two main components of human visual systems.
Answer: central focal vision
peripheral ambient vision
◉what are the three phases of vision. Answer: Photopic, Scotopic
Mesopic
◉where is peak visual acuity located. Answer: Central vision, central
2 degree cone
◉how large is the human perceptible field of view. Answer: 120 x
120 degrees
◉where is the night visual blind spot located on the visual field.
Answer: center
◉what are the two technologies used for enhanced vision systems.
Answer: EVS, EFVS, SVS, NVGs, FLIR
, ◉what is the recommendation for visual scanning inflight for
instruments versus outside the aircraft during good visibility
conditions. Answer: 60* side to side in 10* increments
◉proprioception. Answer: somatosensory
seat of your pants
acceleration/deleraction/somatigravic illusion
◉vestibular systems. Answer: semicircular canals
otolith organs
◉visual systems. Answer: 90% of orientation
peripheral vision
◉semicircular canals. Answer: angular acceleration
roll/pitch/yaw
◉otolith organs. Answer: linear acceleration
horizontal/vertical acceleration
◉Vestibulo-Ocular Reflex. Answer: your eyes lag behind to keep to
image stable
2026 QUESTIONS WITH CORRECT
SOLUTIONS GRADED A+
◉what are the three primary sources of orientation in aviation.
Answer: propriception, vestibular, visual
◉what percentage of inflight orientation does vision provide.
Answer: 90%
◉proprioceptive senses allow humans to sense what. Answer:
orientation and motion through proprioceptors embedded
throughout the human body
◉vestibular senses allow humans to sense what. Answer: angular
acceleration, head position, spatial orientation
◉what two components make up the vestibular apparatus. Answer:
otolith organs
semicircular canals
,◉what would be the speed of a turn for sub-threshold acceleration.
Answer: less than three degrees per second
◉what are the two main components of human visual systems.
Answer: central focal vision
peripheral ambient vision
◉what are the three phases of vision. Answer: Photopic, Scotopic
Mesopic
◉where is peak visual acuity located. Answer: Central vision, central
2 degree cone
◉how large is the human perceptible field of view. Answer: 120 x
120 degrees
◉where is the night visual blind spot located on the visual field.
Answer: center
◉what are the two technologies used for enhanced vision systems.
Answer: EVS, EFVS, SVS, NVGs, FLIR
, ◉what is the recommendation for visual scanning inflight for
instruments versus outside the aircraft during good visibility
conditions. Answer: 60* side to side in 10* increments
◉proprioception. Answer: somatosensory
seat of your pants
acceleration/deleraction/somatigravic illusion
◉vestibular systems. Answer: semicircular canals
otolith organs
◉visual systems. Answer: 90% of orientation
peripheral vision
◉semicircular canals. Answer: angular acceleration
roll/pitch/yaw
◉otolith organs. Answer: linear acceleration
horizontal/vertical acceleration
◉Vestibulo-Ocular Reflex. Answer: your eyes lag behind to keep to
image stable
