WorksheetsHuman factors
Total questions: 48
Worksheet time: 24mins
Which one of the following factors affecting human performance is considered environmental factor?
Drugs/Alcohol
Sickness
Air ressure
Hypoxia means:
More oxygen in the organism than what is needed
Less oxygen in the organism than what is needed
Too little carbon monoxide in the orgnism
One of following symptoms IS NOT a symptom of hypoxia. Which one?
Impaired judgment
Tingling fingers
Muscle spasm
What can be contributing factor to onset of hypoxia?
Stress
Anxiety
Higher altitudes
What condition may cause muscle spasms?
Hypoxia
CO poisoning
Hyperventilation
What condition will probably NOT cause muscle spasms?
Flickering light
Lack of CO2 (carbon dioxide)
CO Poisoning
What of the following actions may help couteract hyperventilation?
Getting fresh air
Talking aloud
Drinking a serving of alcohol
Yawning, chewing gum or blocking airways and blowing air are all actions that my help when:
We feel pressure in our ears and/or sinus during descent
Sensing starting symptoms of hyperventilation
Sensing starting onset of hypoxia
Which of the following actions is NOT recommended to pilots during flight, when suffering from blocked nasal passages due to cold or infection?
Oral medication intake
Nasal medication intake
Relief from flight duty
Which of the following human systems is the most reliable in prevention of spatial illusions or orientation?
Vision
Vestibular system
Somatosensoric system
Which system helping humans with spatial orientation is found in the middle ear?
Sinus
Somatosensoric system
Vestibular system
Which one of the following illusions is purely visual?
Inversion illusion
Autokinesis
Reversal of motion
Graveyard spiral is a typical ___________ illusion
vestibular
somatogravic
visual
The best way to tackle spatial/visual illusions or disorientation is:
Fly according to the seat-of-the-pants
Trust your body and mind
Know how to fly and trust instruments in the aircraft
When you are approaching runway that is narrower than what you are used to, your approach may be ________
too low
too high
normal
When you are approaching runway that is wider than what you are used to, your approach may be ________
too low
too high
normal
When you are approaching down-sloping runway, your approach may become _________
too low
too high
normal
When you are approaching up-sloping runway, your approach may become _________
too low
too high
normal
Somebody suffering from motion sickness, _________
may never become a pilot
may become a pilot, but of low quality only
does not say anything about his qualities as a pilot
How long does it take for a human body to get rid of CO in it following onset of CO poisoining?
24 hrs
48 hrs
4-8 hrs
In what situation is CO poisoning most likely to occur
Flying a turbine powered aircraft with heating ON
Flying a piston powered aircraft with heating OFF
Flying a piston powered aircraft with heating ON
What is the most probable source of CO in an aircraft?
Exhaust fumes
Turbine engine compressor bleed air
Air heated by the engine muffler used for carburettor heating
What happens when we are subject to stress?
Increased blood pressure
Metabolism slows down
All answers are correct
Which type of stress is more easily coped with?
Short-term stress
Long-term stress
Both long- and short-term stress are difficult to cope with
Which type of stress is less likely to cause grave consequences?
Short-term stress
Long-term stress
Both short- and long term stress will probably not have grave consequences
When will human body start a mechanism named "thirst"
After losing approximately 1,5 dcl of water
After holding water for a few moments in your mouth
When the body already starts suffering from dehydration
What of these are best used to re-hydrate the body?
Coffee or tea
Energetic drink
Water with electrolytes
How much should we drink to prevent dehydration?
2 ltrs/day
1 ltr/day
1,5 dcl/day
How long does it take to a human body to get rid of 1 serving of alcohol, typically?
12 hours
3 hours
30 minutes
After you have started using new prescribed medication, that may have side effects, how long should you not fly to be reasonably sure side effects are not present?
5-6x dosing period
48 hrs
1 day
You have took-off from an airfield at 2 000 ft and within 3 minutes you climbed to above 8 000 ft. You start feeling itching around your face. This may be an onset of ____________
CO poisoning
Hypoxia
Decompression sickness
You have took-off from an airfield at 2 000 ft and within 4 minutes you climbed to above 10 000 ft. You start feeling pain in your elbows and shoulders. The best course of action is to _________
Open vents and breathe deeply, this may be hypoxia
Breathe into a paper bag, this may be hyperventilation
Descend to below 8 000 ft, this is decompression sickness
This is your last day of vacation, your flight home is in the afternoon and tomorrow you are already assigned a flight at 7:00 to deliver supplies to an outpost at 9 000 ft mountain. But today just before noon, you still have time to dive for 1 hour using scuba equipment. Can you do it?
Yes
No
Only if the diving will not last more than 30 minutes
How do we call cells in the eye that are responsible for colour vision?
Cones
Rods
Pupils
What cells in the eye are responsible for vision in bright light?
Cones
Rods
Pupils
What cells in the eye are responsible for vision in dim or dark conditions?
Cones
Rods
Pupils
Where are cones concentrated the most in the human eye?
In the fovea
In the day blind spot
Around the circumference of the eye
How many blind spots do humans have in one eye?
Just one, no matter what light conditions
Two in bright light conditions and one in dim/dark/low light conditions
One under bright light conditions and two in dim/dark/low light conditions
How long does it take to a human eye to adapt from bright light to low-light conditions?
No time at all
5 hours
0,5 hours
Do we see colours at dark?
Yes
No
Only when using binocular vision
What techique should be used at night when looking out of aircraft?
Central vision
Scanning, keep focus at every scanned point for at least 8 seconds
Scanning, do not focus at any scanned point for longer than 3 seconds
How do we percieve distance and perspective at longer distances?
Through binocular vision
Through monocular vision
Through combination of monocular and binocular vision
Empty field myopia means:
Eye will focus at a comfortable distance (ca 20 ft) when there is nothing specific to focus on and the pilot will be looking without actually seeing
Eye will focus at a comfortable distance (ca 2 NM) when there is nothing specific to focus on and the pilot will be looking without actually seeing
Eye will not be able to focus on objects due to haze or fog obscuring them partially
Looking at an isolated light at night for more than 10 secods may lead to:
Autokinesis illusion
Not seeing the light
Percieving the light as if it was a star no matter its position
What danger is associated with flickering sharp lights?
False horizon illusion
Misjudging the distance
Convulsions/uncosciousness
Are synthetic and enhaced vision instruments approved to be used as a tools to fly visually under IMC conditions?
Yes
No
Only when they are used as Night Vission Goggles
Flying in higher altitudes will have _________ impact on vision.
Positive
Negative
No
Increased temperature will probably have _________ impact on vision.
Positive
Negative
No
