Human Performance & Limitations Flashcards
Who in the Aviation Industry is responsible for flight safety?
Everyone Involved
Assuming normal circumstances, which gas will diffuse from the blood to
the lungs?
Carbon Dioxide
The average pulse rate of a healthy adult in rest is about:
60/80 heartbeats per minute
The temperature laps rate within the atmosphere
IISA Standard deviation of 2 degrees celsius /1000 feet
Which of the following can cause anaemic hypoxia?
Smoking
A person is considered overweight when the BMI
25+
The risk of hypoxia in a person increases at altitude_____ if they smoke:
Increase
If the seating position is lower than the design eye position, this will have
the effect of:
Reducing forward visibility on approach
Out of all the possible measure to counteract hyperventilation, the most
effective is:
Breathe into a plastic or paper bag
The respiratory process consists of:
The diffusion of oxygen through the respiratory membranes into the
blood transportation and diffusion to the cell and elimination of carbon
dioxide.
Hypoxia can occur because…
the percentage of oxygen is lower at high altitude
The composition of the atmosphere from sea level to around 60,000ft
retains the proportions of:
78% Nitrogen, 21% Oxygen, 1% other gases.
By “long duration acceleration”, we mean that it lasts more than:
1 second
The eye can fully adjust to:
High levels of illumination in 10 seconds and darkness in 30 minutes
Performance is adversely affected by:
High and low arousal only
When a pilot is approaching a runway that is wider than he used to the
aircraft will appear to be:
Low on the approach
Hyperventilation means breathing:
More deeply and frequently than is necessary
How does haze affect your perception?
Objects seem to be further away than in reality
The most probable reason for spatial disorientation is:
a poor instrument cross-check and permanently transitioning back
and forth between instrument and visual references
The amount of light that strikes the retina is controlled by:
Pupil
Which of the following situation is most likely to produce sensory
habituation?
Making a co-ordinated turn for more than 30 seconds
In order to get colour vision, it is necessary:
For there to be a sufficient amount of light
Glaucoma is a condition…
detected by pressure testing the eyeball
The time an eye needs to adapt fully to the dark is about:
25-30 minutes
You fly VFR from your home base (runway width 27m) to an international
airport (runway width 45m). on reaching your destination there is a risk
performing:
High approach with overshoot
What can be done to overcome the effects of motion sickness
During manoeuvres, place your head on the headrest
Hypoglycaemia is potentially a dangerous condition and can affect
healthy people. What can cause hypoglycaemia?
Lack of food followed by mental stress
The black hole phenomenon occurs during approaches at night and over
water, jungle or desert. When the pilot is lacking visual cues other than
those of the aerodrome, there is an illusion of:
Being too high or too far away, dropping low and landing short
Positive G will cause the blood flow to the brain to:
Decrease
The concentration of Oxygen in the atmosphere is:
Highest at ground level
The composition of the atmosphere from sea level to around 60,000ft
retains the proportions of:
78% Nitrogen, 21% Oxygen, 1% other gases.
Which of the following promotes the most serious cause of coronary heart
disease?
Obesity
Are you fit to fly if you different symptoms of cold?
No
How many units of alcohol are expelled from the body in 2 hours?
2 units
You have been on holiday and have enjoyed some scuba diving. You have
not exceeded a depth of 30 feet with the equipment. The recommended
time interval before you fly again:
12 Hours
The most effective visual scanning technique is to:
Regular short movement of the eyes
Performance is adversely affected by:
High and low arousal only
The most common symptoms of gastroenteritis include
- Diarrhea
- Vomiting
- Stomach cramps
- Sudden fever
You are most likely to experience the illusory perception of a pitch up
during:
A go around
When looking at an object at night, it is recommended to look:
Slightly to one side of the Object
An aircraft deceleration
An aircraft deceleration
In conductive deafness, there has been failure of the:
Eardrum or ossicles
Emotional stresses as a result of marital problem, family illness, death
of near family etc
Sociological stress
When a pilot is approaching a runway that is wider than he is used to, the
aircraft will appear to be:
Low on approach
