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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:

A

vertigo

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?

A

4 minutes

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
Q

Calculate the body mass index (BMI) for someone who is 5 ft 5 inches tall, weighing 150 lbs.

A

25

26
Q

How would you treat someone suffering from hypoxia during a climb past 9,500 ft in a light aircraft?

A

Descend, and if available provide a supply of oxygen

27
Q

In general, removing the cause of acute stress (or removing yourself from the cause) would:

A

be considered to be an example of a coping strategy

28
Q

The somatogravic illusion is when:

A

acceleration causes the sensation of falling backwards (pitching upwards)

29
Q

What name is given to the condition where the lens of the eye is not perfectly round?

A

Astigmatism

30
Q

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?

A

30 Seconds

31
Q

Which of the following correctly describes a motor programme?

A

A well learned skill that needs little or no conscious input

32
Q

There exists a phenomenon called ‘risk shift’ which applies to people working in groups. What is this?

A

The tendency of a group to make more risky decisions than a single person would

33
Q

Where in the lungs does gas exchange occur?

A

Alveoli

34
Q

The light sensitive part of the eye that converts light into electrical signals for passing to the brain is known as the:

A

retina

35
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

36
Q

As your aircraft climbs, your susceptibility to carbon monoxide poisoning will:

A

increase

37
Q

What is the atmosphere composed of?

A

78% nitrogen, 21% oxygen, 1% other gases

38
Q

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

A

top left

39
Q

What are the initial symptoms of hypoxia

A

Europhia, clumsiness, impaired judgement

40
Q

What is the human hearing range

A

20 to 20,000 hz

41
Q

When scuba diving you should not fly for… Hours after diving, or…. Hours of exceeding 30 meters

A

12 and 24

42
Q

When decelerating the pilot may expirence the illusion of

A

Pitching Down

43
Q

When operating at low level a person breathing abnormally and displaying the symptoms of hypoxia is probably suffering from…..

A

Hyperventilation

44
Q

What does the middle ear contain?

A

Air, and the three ossicles that transmit sound

45
Q

In the human eye, the part of the retinal surface where the nerves come together to form the optic nerve is known as:

A

the blind spot

46
Q

What is your useful ‘time of consciousness’ after sudden failure of oxygen supplies at 40,000 ft?

A

12-15 seconds

47
Q

One of the most common forms of amnesia tends to affect the:

A

episodic long term memory

48
Q

The main limitation of the thinking brain is that it:

A

can only consider one thing at a time

49
Q

A problem is worked on by a group of people. Which of the following statements is correct?

A

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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