ATPL Human Factors Exam with correct detailed ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
solutions
Cornea - correct answer✔✔Acts as a focusing device that attributes 70/80% of the ability of
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
the eye
||\\//|\
Lens - correct answer✔✔Contributes 20/30% of the focusing
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Iris - correct answer✔✔Adjusts the size of the pupil to control how much light enters the
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
eye, in low light there is a chemical change which takes place in the retina
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Retina - correct answer✔✔Is a light sensitive screen of cones and rods
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Accomodation - correct answer✔✔Cilliary muscles stretch and contract the lens to look at ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
objects that are far away and close respectively ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Fovea - correct answer✔✔Centre of the retina, it has the most cones whereas the outer
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
edge of the eye has the most rods
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Scotopic Vision - correct answer✔✔This is monochromatic vision in low light, it uses rods
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Photopic Vision - correct answer✔✔This is provided by cones in normal light ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Mesopic Vision - correct answer✔✔Is vision by a combination of rods and cones ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Visual Acuity - correct answer✔✔The eyes ability to resolve fine details
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
, 20/20 Vision - correct answer✔✔You should be able to see at 20ft what a normal person
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
sees at 20 feet ||\\//|\ ||\\//|\ ||\\//|\
Stationary Eyes Visual Field - correct answer✔✔120 degrees left to right and 150 degrees ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
up to down ||\\//|\ ||\\//|\
Binocular Vision - correct answer✔✔Central overlap of 60 degrees and requires input from ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
both eyes for stereopsis also known as distance triangulation
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Night Vision - correct answer✔✔Eyes adapt in 2 ways:||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
1. They dilate and alter the amount of light by a factor of 5
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
2. Undergo a chemical change in the rods (30 mins) and cones (7 mins)
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
The Ear - correct answer✔✔Receives vibrations in the air and acts as a balance organ and
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
acceleration detector ||\\//|\
Conductive Deafness - correct answer✔✔Infection or wax buildup ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Presbycusis - correct answer✔✔Hearing loss through aging ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Semi-circular Canals - correct answer✔✔Detect rotational movement ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Otoliths - correct answer✔✔Detect linear translations ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Spatial Disorientation - correct answer✔✔When the vestibular apparatus provides
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
misleading sensations ||\\//|\
solutions
Cornea - correct answer✔✔Acts as a focusing device that attributes 70/80% of the ability of
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
the eye
||\\//|\
Lens - correct answer✔✔Contributes 20/30% of the focusing
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Iris - correct answer✔✔Adjusts the size of the pupil to control how much light enters the
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
eye, in low light there is a chemical change which takes place in the retina
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Retina - correct answer✔✔Is a light sensitive screen of cones and rods
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Accomodation - correct answer✔✔Cilliary muscles stretch and contract the lens to look at ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
objects that are far away and close respectively ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Fovea - correct answer✔✔Centre of the retina, it has the most cones whereas the outer
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
edge of the eye has the most rods
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Scotopic Vision - correct answer✔✔This is monochromatic vision in low light, it uses rods
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Photopic Vision - correct answer✔✔This is provided by cones in normal light ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Mesopic Vision - correct answer✔✔Is vision by a combination of rods and cones ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Visual Acuity - correct answer✔✔The eyes ability to resolve fine details
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
, 20/20 Vision - correct answer✔✔You should be able to see at 20ft what a normal person
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
sees at 20 feet ||\\//|\ ||\\//|\ ||\\//|\
Stationary Eyes Visual Field - correct answer✔✔120 degrees left to right and 150 degrees ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
up to down ||\\//|\ ||\\//|\
Binocular Vision - correct answer✔✔Central overlap of 60 degrees and requires input from ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
both eyes for stereopsis also known as distance triangulation
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Night Vision - correct answer✔✔Eyes adapt in 2 ways:||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
1. They dilate and alter the amount of light by a factor of 5
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
2. Undergo a chemical change in the rods (30 mins) and cones (7 mins)
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
The Ear - correct answer✔✔Receives vibrations in the air and acts as a balance organ and
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
acceleration detector ||\\//|\
Conductive Deafness - correct answer✔✔Infection or wax buildup ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Presbycusis - correct answer✔✔Hearing loss through aging ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Semi-circular Canals - correct answer✔✔Detect rotational movement ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Otoliths - correct answer✔✔Detect linear translations ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
Spatial Disorientation - correct answer✔✔When the vestibular apparatus provides
||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\ ||\\//|\
misleading sensations ||\\//|\
