Pilotenausbildung "Human Performance - Eye"
ATPL-Questions
ATPL-Questions
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Lernkarten
When flying at night the first sense to be affected by a slight degree of hypoxia is the
The part(s) of the eye responsible for night vision
The fovea
When the optical image forms in front of the retina; we are talking about
During flight in IMC, the most reliable sense which should be used to overcome illusions is the:
In the absence of external reference points, the sensation that the vehicle in which you sitting is moving when it is in fact the vehicle directly alongside which is moving is called :
The retina allows for the acquisition of colours as a result of the:
The phenomenon of accommodation, which enables a clear image to be obtained, is accomplished by which of the following ?
We know that, in the mechanism of sight, the retina allows for :
Rods (scotopic visual cells) allow for :
Visual perception of depth at close to medium distance is primarily due to
Autokinetic illusion is:
Rising the perceptual threshold of a sensory organ means:
The amount of light which strikes the retina is controlled by:
When focussing on near objects:
The ability of the lens to change its shape is called:
The mechanism of accommodation is caused by:
Presbyopia is:
Visual acuity during flight at high altitudes can be affected by:
1. anaemia
2. smoking in the cockpit
3. carbon monoxide poisoning
4. hypoxia
Glaucoma
1. can lead to total blindness
2. can lead to undetected reduction of the visual field
3. reduces visual acuity in its final stage
Glaucoma is:
Glaucoma is characterised by:
1. disturbed light adaptation
2. progressive narrowing of the visual field
3. insidious onset and concealed progression
4. an increase in intra-ocular pressure
The peripheral vision is important for:
Although we have a field of vision of more than 180° it is important during flight to use the scan ning technique, because
The time an eye needs to adapt fully to the dark is about:
The photosensitive cells beeing responsible for night vision are called:
When flying through a thunderstorm with lightning you can protect yourself from flashblindness by:
a) turning up the intensity of cockpit lights
b) looking inside the cockpit
c) wearing sunglasses
d) using face blinds or face curtains when installed
Which scanning technique should be used when flying at night?
Visual disturbances can be caused by:
1. hyperventilation
2. hypoxia
3. hypertension
4. fatigue
Empty field myopia is caused by:
When a pilot is starring at an isolated stationary light for several seconds in the dark he might get the illusion that:
When you stare at a single light against the dark (f.e. an isolated star) you will find the light appears to move after some time. This phenomenon is called:
How is haze effecting your perception?
The 'Black hole' phenomenon occurs during approaches at night and over water, jungle or desert. When the pilot is lacking of visual cues other than those of the aerodrome there is an illusion of
You fly VFR from your home base (runway width 27 m), to an international airport (runway width 45 m). On reaching your destination there is a risk of performing a:
You fly VFR from your home base (runway width 45 m) to a small airfield (runway width 27 m). On reaching your destination there is a risk of performing a:
How long does it take to develop full night vision adaption?
The optic system of the eye consists of
The three coats of the eye are
Shortsightedness means
