AVIT 309 FINAL Questions and Answers
(100% Correct Answers) Already Graded A+
what are the three primary sources of orientation [ Ans: ]
Proprioception
Vestibular
Visual
What % of inflight orientation does visual orientation
provide? [ Ans: ] 90%
Proprioceptive senses allow humans to sense what? [ Ans:
] movement and body position
Vestibular senses allow humans to sense what? [ Ans: ]
Semi-circular canals and otolith organs
what would be the speed of a turn for a sub-threshold
acceleration [ Ans: ] less than 3 degrees per second
what are the two main components of human visual
systems [ Ans: ] central
periphreal
what are the three phases of vision [ Ans: ] photopic
mesopic
,scatopic
where is peak visual acuity located [ Ans: ] Central vision,
central 2 degree cone
how large is the human perceptible field [ Ans: ] 120 x 120
degrees
where is the night visual blind spot located on the visual
field [ Ans: ] central 2 degrees/ central vision
what are the two technologies used for enhanced vision
systems [ Ans: ] light intensification
infared
what is the reccomendation for visual scanning inflight
for instruments versus outside the aircraft [ Ans: ] 1/4
outside
3/4 inside
SDO may rapidly transition from unnoticed to
incapacitating (T/F) [ Ans: ] true
SDO typically happens when an aviator cannot visually
confirm orientation with what? [ Ans: ] the horizon
fatigue may lead to SDO by causing routine tasks or scans
to be skipped (T/F) [ Ans: ] true
, what is the average experience level for pilots involved in
SDO related accidents [ Ans: ] 10 years/1000 hours
what compensatory reflexive action typically happens to a
piltos head in a banking turn [ Ans: ] optokinetic cervical
reflex
Which SDO illusion affects a pilot's ability to focus their
eyes after rolling out of an extended turn? [ Ans: ]
oculogyric
Which SDO illusion causes a pilot to feel as if the aircraft
nose suddenly pitched up during acceleration and low
visibility conditions? [ Ans: ] somatogravic
which SDO illusion casues a turning sensation following a
roll-out from an extended turn [ Ans: ] somatogyric
which SDO illusion typically starts with a sub-threshild
turn [ Ans: ] graveyard spiral
how long should one expect to fly straight and level for
SDO symptoms to resolve [ Ans: ] 20-30 Seconds
how much should pilots rely on vestibular and
proprioceptive inputs during flight [ Ans: ] not at all
What % of commerical incidents and accidents happen in
the approach and landing phases [ Ans: ] 50%
visual illusions cause incidents and accidents for what
reason [ Ans: ] deviation from glideslope
(100% Correct Answers) Already Graded A+
what are the three primary sources of orientation [ Ans: ]
Proprioception
Vestibular
Visual
What % of inflight orientation does visual orientation
provide? [ Ans: ] 90%
Proprioceptive senses allow humans to sense what? [ Ans:
] movement and body position
Vestibular senses allow humans to sense what? [ Ans: ]
Semi-circular canals and otolith organs
what would be the speed of a turn for a sub-threshold
acceleration [ Ans: ] less than 3 degrees per second
what are the two main components of human visual
systems [ Ans: ] central
periphreal
what are the three phases of vision [ Ans: ] photopic
mesopic
,scatopic
where is peak visual acuity located [ Ans: ] Central vision,
central 2 degree cone
how large is the human perceptible field [ Ans: ] 120 x 120
degrees
where is the night visual blind spot located on the visual
field [ Ans: ] central 2 degrees/ central vision
what are the two technologies used for enhanced vision
systems [ Ans: ] light intensification
infared
what is the reccomendation for visual scanning inflight
for instruments versus outside the aircraft [ Ans: ] 1/4
outside
3/4 inside
SDO may rapidly transition from unnoticed to
incapacitating (T/F) [ Ans: ] true
SDO typically happens when an aviator cannot visually
confirm orientation with what? [ Ans: ] the horizon
fatigue may lead to SDO by causing routine tasks or scans
to be skipped (T/F) [ Ans: ] true
, what is the average experience level for pilots involved in
SDO related accidents [ Ans: ] 10 years/1000 hours
what compensatory reflexive action typically happens to a
piltos head in a banking turn [ Ans: ] optokinetic cervical
reflex
Which SDO illusion affects a pilot's ability to focus their
eyes after rolling out of an extended turn? [ Ans: ]
oculogyric
Which SDO illusion causes a pilot to feel as if the aircraft
nose suddenly pitched up during acceleration and low
visibility conditions? [ Ans: ] somatogravic
which SDO illusion casues a turning sensation following a
roll-out from an extended turn [ Ans: ] somatogyric
which SDO illusion typically starts with a sub-threshild
turn [ Ans: ] graveyard spiral
how long should one expect to fly straight and level for
SDO symptoms to resolve [ Ans: ] 20-30 Seconds
how much should pilots rely on vestibular and
proprioceptive inputs during flight [ Ans: ] not at all
What % of commerical incidents and accidents happen in
the approach and landing phases [ Ans: ] 50%
visual illusions cause incidents and accidents for what
reason [ Ans: ] deviation from glideslope
