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EASA PPL UK > Human Performance > Flashcards

Human Performance Flashcards

1
Q

Approximately how long can the human brain survive without severe damage after being totally deprived of oxygen?

A

4 minutes

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2
Q

Which of the following conditions is the most common form of sudden pilot incapacitation?

A

Gastroenteritis

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3
Q

What sound pressure level (measured in decibels) is usually accepted as being the threshold where prolonged exposure above this level is likely to cause temporary or permanent hearing loss?

A

80 dB

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4
Q

Approximately how many unrelated items can be retained in short term memory?

A

Seven

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5
Q

Body temperature is linked to alertness and performance. Which of the following body temperatures correlate to good performance capability?

A

The peak of the normal body temperature cycle

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6
Q

Your ‘time of useful consciousness’ at 22,000 feet is approximately:

A

5-10 minutes

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7
Q

In which place will the vertical speed indicator (VSI) be located in an aircraft with a standardised basic instrumentation layout?

A

Bottom Left

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8
Q

What illusion may occur when flying into fog or haze?

A

objects will appear farther away then they are

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9
Q

Which of the following is true regarding divided attention?

A

task practice can improve a persons ability to

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10
Q

In a cockpit how should a set of controls that operate different systems ideally be designed

A

to both look and feel different

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11
Q

During flight, a solo pilot who experiences the following illusion of tumbling forwards following a reduction in power should….

A

pay attention to a trust the aircraft instruments

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12
Q

what proportion of the atmosphere is oxygen at 15000 ft

A

21%

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13
Q

What is the approximate time to eliminate 1 unit of alcohol from the blood

A

1 hour

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14
Q

How long does it take the eye to adjust to low light levels?

A

30 mins

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15
Q

Once eyes have adjusted to night how is it best to look at an object to obtain the best visual acuity?

A

Slightly to the side of the object

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16
Q

What should you do if whilst flying with a more experienced pilot whom, you consider, has chosen an incorrect course of action that may endanger the aircraft?

A

always express any doubts you have

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17
Q

Decision making is influenced by which factors?

A

The outcome of previous experience

Future decisions are made on the experience of their previous instructors

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18
Q

How should a pilot best maintain situational awareness

A

Consider all available data whilst updating their situation and planning ahead

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19
Q

How long can an item of information be retained in your short term memory for?

A

About 15 seconds

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20
Q

A sensation where you feel that you are spinning round, when in reality you are not is known as:

21
Q

When approaching a runway with a marked downward slope, the visual illusion caused by this situation might cause you to:

A

make a higher and steeper approach than is required

22
Q

Approximately how long can the human brain survive without severe damage after being totally deprived of oxygen?

23
Q

Drugs used to help you sleep:

A

should only be used with approval of an aviation medical expert

24
Q

How is night vision affected by increasing altitude?

A

Night vision is adversely affected by low oxygen levels at altitude

25
Calculate the body mass index (BMI) for someone who is 5 ft 5 inches tall, weighing 150 lbs.
25
26
How would you treat someone suffering from hypoxia during a climb past 9,500 ft in a light aircraft?
Descend, and if available provide a supply of oxygen
27
In general, removing the cause of acute stress (or removing yourself from the cause) would:
be considered to be an example of a coping strategy
28
The somatogravic illusion is when:
acceleration causes the sensation of falling backwards (pitching upwards)
29
What name is given to the condition where the lens of the eye is not perfectly round?
Astigmatism
30
An aircraft appears dead ahead, heading towards you at a range of 2 nm. Both aircraft are travelling at a speed of 120 kts. How long do you have in order to avert a collision?
30 Seconds
31
Which of the following correctly describes a motor programme?
A well learned skill that needs little or no conscious input
32
There exists a phenomenon called 'risk shift' which applies to people working in groups. What is this?
The tendency of a group to make more risky decisions than a single person would
33
Where in the lungs does gas exchange occur?
Alveoli
34
The light sensitive part of the eye that converts light into electrical signals for passing to the brain is known as the:
retina
35
What sound pressure level (measured in decibels) is usually accepted as being the threshold where prolonged exposure above this level is likely to cause temporary or permanent hearing loss?
80 dB
36
As your aircraft climbs, your susceptibility to carbon monoxide poisoning will:
increase
37
What is the atmosphere composed of?
78% nitrogen, 21% oxygen, 1% other gases
38
In which place will the air speed indicator (ASI) be located in an aircraft with a standardised basic instrumentation layout?
top left
39
What are the initial symptoms of hypoxia
Europhia, clumsiness, impaired judgement
40
What is the human hearing range
20 to 20,000 hz
41
When scuba diving you should not fly for... Hours after diving, or.... Hours of exceeding 30 meters
12 and 24
42
When decelerating the pilot may expirence the illusion of
Pitching Down
43
When operating at low level a person breathing abnormally and displaying the symptoms of hypoxia is probably suffering from.....
Hyperventilation
44
What does the middle ear contain?
Air, and the three ossicles that transmit sound
45
In the human eye, the part of the retinal surface where the nerves come together to form the optic nerve is known as:
the blind spot
46
What is your useful 'time of consciousness' after sudden failure of oxygen supplies at 40,000 ft?
12-15 seconds
47
One of the most common forms of amnesia tends to affect the:
episodic long term memory
48
The main limitation of the thinking brain is that it:
can only consider one thing at a time
49
A problem is worked on by a group of people. Which of the following statements is correct?
The group result is not likely to be much better than that of the most able contributor

EASA PPL UK (9 decks)

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