Pilotenausbildung "Human Performance - Eye"
ATPL-Questions
ATPL-Questions
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Cartes-fiches
The time for dark adaptation is
Which problem may occur, when flying in an environment of low contrast (fog, snow, darkness, haze)?
Under these conditions it is:
A pilot approaching an upslope runway
The area in front of a threshold descends towards the threshold.
Possible danger is:
Sunglasses with variable filtration (phototrope glasses)
What misjudgement may occur if an airplane is flying into fog, snow or haze?
Depth perception when objects are close (< 1 m) is achieved through
Adaptation is
The time required for complete adaptation is
The requirement of good sunglasses is to
Why does a deficiency in vitamin A cause night-blindness?
Scanning at night should be performed by:
Approaches at night without visual references on the ground and no landing aids (e.g. VASIS) can make the pilot believe of beeing
A pilot is used to land on wide runways only. When approaching a smaller and/or narrower runway, the pilot may feel he is at a
Flickering light when reflected from spinning rotor blades
A pilot approaching a runway which is narrower than normal may feel he is at a greater height than he actually is. To compensate he may fly a
What impression do you have when outside references are fading away (e.g. fog, darkness, snow and vapor)?
Hypoxia will effect night vision
The effect of hypoxia to vision
What does not impair the function of the photosensitive cells?
The fovea centralis is
The retina of the eye
What should a pilot do if he has no information about the dimensions of the runway and the condition of the terrain underneath the approach? He should
Hypoxia effects visual performance.
A pilot may:
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:
