AS 357 Exam 3: Questions ON the test
Tolerance of negative Gs
-3 Gs
A 200lb pilot in a 6G turn weighs....
1200lbs
What is the hearing threshold for pain?
130 db
Vestibular senses wont notice/ take roll or rate if within
2-3 dps
Eyes take ___ minutes to adjust at night
30- 45
Pilots can tolerate how many positive G's
4-5
how much % of orientation is based on vision
90%
Is a perforated ear drum sensorineural or conductive loss?
Conductive
Bright light and color
Cones
What are long term effects from prolonged exposure to noise?
Distractions fatigue hearing loss
How can pilots tolerate negative G's
G suit Stay in shape Pressure Breathing
Acceleration is measured in terms of
G's
Night vision
Rods
Peripheral vision is through
Rods
What vitamin helps with sight
Vitamin A (helping photochemicals)
If you have a narrow runway, you are going to fly
a lower approach
Dark landing over the water causes what effect/illusion
black hole effect
RWY visual illusions include
black hole effect upslope downslope and lighting
G lock
blood pools in heart and brain (can be + or -)
Tilting your head in a turn can cause _____ effect/ illusion
coriolis
Ways to protect the ears
ear plugs headsets with noise cancelling limit exposure to LOUD noises
Vibration on the body can cause
fatigue distraction discomfort muscle tension
Spatial Disorientation
feeling of instability
Lasers cause
flash blindness retinal burn out (ghost image) glare
What are the three properties of sound?
frequency, duration, and intensity
sensorieneural hearing loss
hair in canal loses flexibility with age
What effects depth perception
haze fog lack of light/visual cues
Vestibular is what part of the body
inner ear
What is ghost image/vision
lights that are still there when you close your eyes. due to retinal burn out
The night blind spot is due to
location of the Rods (why you need peripheral vision techniques at night)
Red out
negative G's
what can we do to correct for blind spot at night
off center viewing
Linear acceleration is sensed by _______ bones in the inner ear
otolith (organs/bones)
If a pilot takes off from water in dark night they might decide to ____
push the nose down (black hole effect)
Use ___ color light at night in the cockpit to protect vision
red (doesn't disturb my rods)
Light goes into the eye focusing on the
retina
Angular acceleration is sensed by
semicircular canals
if you fly tired/ hungover you are more experience to have _______________
spatial disorientation
As we age and experience more loud noise episodes, we lose affects due to the hairs doing what
the hairs bend down and do not straighten up
If you have an down sloping runway, you are going to
think you are low and will fly higher
Name for ringing in the ears
tinnitus
If you have spatial disorientation you should
trust your instruments
One indication of excessive POSITIVE G's right before losing consciousness
tunnel vision
sense of balance and orientation
vestibulary system vision seat of the pants proprioception
#1 way the body orients itself
vision
The natural blind spot is due to
vision falling on the optic nerve
What can you do during the day to protect your vision at night
wear sunglasses, avoid white light
What color light ruins night vision almost immediatly
white
