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Human Factors | PPL(A) Human Performance - EASA & UK CAA

Human factors practice questions for PPL(A) candidates

Basic aviation physiology and health maintenance

Section titled "Basic aviation physiology and health maintenance"
Question 1

What is the percentage of oxygen at 35000 ft?

Question 2

When breathing outside air, at what altitude will you encounter the critical stage?

Question 3

What is the normal breathing rate of a healthy human?

Question 4

What is responsible for the carriage/transportation of oxygen in the blood?

Question 5

In case of hyperventilation, what countermeasure should be applied?

Question 6

What can be caused by the failure of the coronary artery?

Question 7

What happens to the volume of a given gas if it expands at a constant temperature? (Boyle's law)

Question 8

Which harmful gas is easily produced by the incomplete combustion of fuel?

Question 9

What term describes the shortage of oxygen?

Question 10

Which of the following is the best way of preventing coronary heart disease?

Question 11

If the pressure of a given gas remains constant, what will happen to its volume if the temperature decreases?

Question 12

Where will the blood pool in case of positive-G forces?

Question 13

What happens to the total pressure and partial pressure of a given gas, if the altitude increases?

Question 14

What can cause hypertension?

Question 15

During hyperventilation, the level of ...... decreases.

Question 16

As altitude increases the effects of carbon monoxide poisoning are:

Question 17

What is the major waste product of a tissue?

Question 18

In which way is air entering the body during inhaling (inhalation)?

Question 19

Which type of blood cell is responsible for clotting?

Question 20

What are the symptoms of hypoxia?

Question 21

Which type of hypoxia is caused by the loss of oxygen carrying capacity of the blood?

Question 22

What is inversely proportional to the pressure of a given gas in Boyle's law?

Question 23

Which measure(s) compensate(s) for the effects of hypoxia?

Question 24

Which of the following items can increase the tolerance to G-forces?

Question 25

What type of blood is carried in the arteries usually?

Question 26

What are the primary symptoms of hypertension?

Question 27

At what altitude does breathing outside air reach an indifferent stage?

Question 28

What is the percentage of oxygen in the atmosphere?

Question 29

Which type of receptors are sensing the decreasing or increasing blood pressure?

Question 30

What is the composition of gases in the atmosphere?

Question 31

According to Henry's law, the amount of a given gas dissolved in a liquid is proportional to the:

Question 32

What happens to the volume of a given gas if it is compressed at a constant temperature? (Boyle's law)

Question 33

What does hypertension mean?

Question 34

Which law is related to Decompression Sickness (DCS)?

Question 35

Which type of hypoxia is caused by altitude increase?

Question 36

What happens to the pressure of a given gas if it is compressed at a constant temperature? (Boyle's law)

Question 37

The leading factor in in-flight incapacitations is heart attack which is caused by:

Question 38

What is the average cardiac output of a healthy human?

Question 39

What provides the blood supply of the heart?

Question 40

If the altitude decreases, the percentage of oxygen will:

Question 41

Where will the blood pool in case of negative G-forces?

Question 42

Which symptoms are related to carbon monoxide poisoning?

Question 43

What happens to the level of carbon dioxide saturation of the blood during hyperventilation?

Question 44

If the altitude increases, the percentage of oxygen will:

Question 45

Where does the exchange of oxygen, carbon-dioxide take place during internal respiration?

Question 46

Why is carbon monoxide especially harmful? 1. It is greatly toxic. 2. Its effects are cumulative. 3. It is odourless. 4. Its symptoms are easily noticeable.

Question 47

What is the primarycause of anaemic hypoxia?

Question 48

If the pressure of a given gas remains constant, what will happen to its volume if the temperature increases?

Question 49

As altitude decreases the effects of carbon monoxide poisoning are: (Note: assume the aircraft is non-pressurised)

Question 50

What happens to the total pressure and partial pressure of a given gas, if the altitude decreases?

Question 51

Which symptoms besides others are related to hypoxia?

Question 1

Why is maintaining proper food hygiene crucial?

Question 2

What is the primary cause of infection by the influenza virus?

Question 3

What is one of the primary negative consequences of smoking tobacco for pilots?

Question 4

Disruptions of pressure equalization in air-filled cavities of the head (nose, ear, teeth etc.) are called:

Question 5

How does smoking tobacco negatively affect a pilot's ability to handle stress during flight?

Question 6

Carbon monoxide poisoning is a threat during flight and may be the result of:

Question 7

In order to get rid of the excess nitrogen following scuba diving, any subsequent flights should be delayed by:

Question 8

A large number of medical preparations can be bought without a doctor's prescription. In relation to using these preparations, which of the following is correct?

Question 9

Flying with the common cold:

Question 10

Which of the following is not a common symptom of sleep rhythm disturbances?

Question 11

Choose the correct option on carbon monoxide (CO) poisoning in flight:

Question 12

Which of the following is a common symptom of sleep rhythm disturbances?

Question 13

Alcohol metabolism (elimination rate):

Question 14

Inhaling carbon monoxide can be extremely dangerous during flying. Which of the following statements is correct?

Question 15

What is the primary mode of transmission for the influenza virus?

Question 16

Why is proper nutrition particularly important for pilots?

Question 17

Which of the following applies when alcohol has been consumed?

Question 18

Which of the following is a common cause of sleep rhythm disturbances?

Question 19

How many steps should you walk per day?

Question 20

What is a potential effect of chronic sleep rhythm disturbances on health?

Question 21

Licence holders shall not exercise the privileges of their licence and related ratings or certificates at any time when they:

Question 22

Which of the following is a recommended strategy for managing sleep rhythm disturbances?

Question 23

Flights immediately after scuba diving, using compressed gas, to depths greater than 10 meters:

Question 24

Alcohol, even when taken in small quantities:

Question 25

Select from the following list all infectious disease which are commonly spread by insects. 1. Cholera 2. Tetanus 3. Hepatitis A 4. Yellow fever 5. Typhoid fever 6. Malaria

Question 26

Which of the following statements about personal fitness is correct?

Question 27

Medical conditions such as high blood pressure, coronary problems and diabetes are associated with what phenomena?

Question 28

Alcohol, when taken with other drugs/medication, can:

Question 29

Which gastro-intestinal symptom is sometimes associated with influenza, particularly in children?

Question 30

Which of the following health conditions is most commonly associated with obesity?

Question 31

Which of the following situations would require a pilot to seek aero-medical advice without any undue delay?

Question 32

Which of the following is a common symptom of influenza?

Question 33

Caffeine may cause an increase in cardiac rate, restlessness/nervousness, insomnia, anxiety and intestinal irritability. Excessive consumption of caffeine is considered to be in excess of:

Question 1

Which of the following is the most vulnerable part in aviation?

Question 2

In which phase of flight is an airplane more prone to accidents?

Question 1

On experiencing a vestibular illusion in straight and level flight, it is recommended that you...

Question 2

Scotopic vision is achieved by:

Question 3

During a straight-and-level flight, an aircraft is accelerating forward. This will give an illusion of...

Question 4

A pilot being used to landing on a wide runway, now has to land on a narrow runway. They may:

Question 5

Noise Induced Hearing Loss is:

Question 6

In case of spatial disorientation occuring:

Question 7

A pilot used to landing on a wide runway, now needs to land on a narrow runway. They may:

Question 8

Which of the following statements about runways with a down-or-upslope is correct?

Question 9

Which light-sensitive receptors are responsible for colour sensing?

Question 10

Which of the following answers contains all parts of the human ear?

Question 11

Photopic vision is achieved by the:

Question 12

Which of the following options on Noise Induced Hearing Loss (NIHL) is correct?

Question 13

What part of the eye is a cataract related to?

Question 14

Refer to an object located directly in front of your eye and close to it (almost touching). What happens to the resolving power as the distance increases from the fovea?

Question 15

Which of the following are bad monocular cues?

Question 16

In the case of myopia, the eyeball is __(1)__ than normal, and the image forms __(2)__ the retina.

Question 17

What type of blood is usually carried in the veins?

Question 18

What are the two primary parts of the Autonomic Nervous System (ANS)?

Question 19

What happens to the lens when it focuses on a near object?

Question 20

According to Boyle's law, what remains constant?

Question 21

By which method are messages sent in the nervous system?

Question 22

By which of the following affect the optic nerves?

Question 23

Which statement is correct regarding the prevention of hypoxia?

Question 24

By which of the following is visual acuity affected?

Question 25

Prolonged negative-G may cause:

Question 26

Which type of nervous system is associated with the General Adaptation Syndrome?

Question 27

A pilot used to landing on a wide runway, now lands on a narrow runway may:

Question 28

Spatial disorientation will most likely occur during flight:

Question 29

Bright lights can make __1__ objects appear __2__, while dim lighting can cause them to appear __3__.

Question 30

A reflex action is part of:

Question 31

Which light-sensitive receptors are responsible for black-and-white sensing?

Question 32

Which of the following statements about the autonomic nervous system are correct or incorrect? 1. The autonomic nervous system is consciously controlled. 2. The autonomic nervous system is an unconsciously controlled part of the body such as breathing.

Question 33

A pilot used to landind on a narrow runway, now needs to land on a wide runway:

Question 34

What are the motor nerves responsible for?

Question 35

During a sightseeing flight, the pilot is involved in a discussion with the passengers about an interesting building below. Therefore, the pilot experiences difficulties in controlling the aircraft and consequently omits to monitor the fuel level. Why is this happening?

Question 36

What is the main cause of motion sickness in an aircraft?

Question 37

Which of the following muscle types achieves accommodation?

Question 38

How many minutes does it take for the cones and rods to adapt to darkness?

Question 39

What does the central nervous system consist of?

Question 40

What normally happens to the pupil, if focusing on an object at a distance?

Question 41

What are the three main phases of General Adaptation Syndrome?

Question 42

What can cause spatial disorientation?

Question 43

What are the sensory nerves responsible for?

Question 44

A pilot used to landing on a narrow runway, needs to land on wide runway. They may:

Question 45

Which statement(s) is/are incorrect regarding monocular vision? 1. It does not affect depth perception. 2. It means two-eyed vision. 3. It supposes that the cones are not working properly. 4. Monocular vision makes a pilot able to fly.

Question 46

Which term is used for long-sightedness?

Question 47

Which part of the ear directs sounds down the auditory canal and then onto the eardrum?

Question 48

At which part of the eye is central vision achieved?

Question 49

What is the spinal cord and the brain part of?

Question 50

Which of the following statements about runways with a down-or-upslope is correct?

Question 51

What is the name of the center of the retina?

Question 52

What can be done to overcome the effects of motion sickness?

Question 53

Which part of the ear transmits vibrations from the eardrum by way of three small bones called the ossicles?

Question 54

The human vestibular system performs spatial orientations by way of:

Question 55

What are nerve cells called?

Question 56

What is the primary effect of positive 'g' acceleration?

Question 57

What is astigmatism related to?

Question 58

The type of vision that can be attained by the cones is:

Question 59

How can myopia be treated?

Question 60

What is the normal pulse rate of a healthy human?

Question 61

Which of the following affect night vision? 1. Altitude 2. Age 3. Body temperature 4. Hypertension

Question 62

What happens to the resolving power as the distance from the fovea decreases from 200m to 5m?

Question 63

What are the names of the two main light-sensitive cells in the retina?

Question 64

Which is the safest way of the so-called look-out technique relative to the flight path of the aircraft?

Question 65

What nerve types are responsible for passing the information from the organs to the Central Nervous System?

Question 66

What does the term angina refer to?

Question 67

What happens to the pressure of a given gas if it expands at a constant temperature?

Question 68

What is the primary source of carbon-monoxide formation during flight?

Question 69

What is hypermetropia?

Question 70

In the case of hypermetropia, the eyeball is __(1)__ than normal, and the image forms __(2)__ the retina.

Question 71

Which of the following decrease the accommodation of the eye?

Question 72

A pilot being used to landing on a narrow runway, is now required to land on a wide runway. They may:

Question 73

The fovea consists of:

Question 74

Which of the following scenarios is most likely to lead to pilot distraction during a critical phase of flight?

Question 75

How can a pilot easily identify an object during a night flight?

Question 76

At which rate of acceleration can a person encounter the loss of peripheral vision?

Question 77

Which statement(s) is/are incorrect regarding binocular vision? 1. It means one-eyed vision. 2. Binocular vision is needed for a pilot to fly. 3. Binocular vision is the same as scotopic vision. 4 .Binocular vision enables good depth-perception.

Question 78

What is the correct order when light enters the eye?

Question 79

How can hypermetropia be treated?

Question 80

What disease is characterised by a rise in pressure in the eye?

Question 81

Which of the following items reduce the tolerance to G-forces?

Question 82

You are approaching a runway over continuously rising terrain. What illusion can you expect?

Question 83

Which factors are predisposing to coronary heart disease?

Question 84

Which statement(s) is/are correct regarding monocular vision? 1. It means one-eyed vision. 2. Monocular vision makes a pilot unable to fly. 3. Monocular vision enables good depth-perception. 4. It is the same as night vision.

Question 85

Which type of vision can be attained by the rods?

Question 86

What does myopia mean?

Question 87

Why is carbon monoxide especially harmful? 1. It is odourless. 2. It is greatly toxic. 3. It is noticeable in no time. 4. Its effect is not cumulative.

Question 88

Which overloading will cause a black-out or G-lock?

Question 89

A pilot being used to landing on a wide runway, needs to land on a narrow runway, they may:

Question 90

What is the leading cause of presbyopia?

Question 91

Which of the following is a characteristic of safe visual scanning?

Question 92

What is the iris responsible for?

Question 93

Which type of vision is mainly used against mid-air collisions?

Question 94

What is the primary cause of hypoxic hypoxia?

Question 95

When flying a coordinated, level turn:

Question 96

A pilot may experience the illusion of being in a nose-up attitude as a result of rapid linear acceleration during take-off. What is this illusion called?

Question 97

What is the name of the change of shape of the lens?

Question 98

In the decision-making process, confirmation bias results in:

Question 99

A pilot used to landing on a narrow runway, but no has to land on a wide runway may:

Question 100

Which vestibular illusion can cause a pilot to perceive a continuous turn even when the aircraft is flying straight?

Question 101

Which of the following statements about runways with a down-or-upslope is correct?

Question 102

What happens to the lens when it focuses on an object at a distance?

Question 103

Noise Induced Hearing Loss (NIHL) is influenced by the:

Question 104

Redout will happen at:

Question 105

What normally happens to the pupil if focusing on a nearby (close) object?

Question 106

Which statement is correct regarding binocular vision? 1. It means two-eyed vision. 2. Binocular vision is not needed for a pilot to fly. 3. It suggests the pilot has an eye-glass. 4. Binocular vision is the same as central vision.

Question 107

Increased, deep breathing, dizziness, pallor. What are the following descriptions related to?

Question 108

The confirmation or expectation bias of decision making is a tendency:

Question 109

Which part of the ear is filled with fluid?

Question 110

Which of the following options does not affect night vision? 1. Age 2. Hypertension 3. Alcohol 4. Stress

Question 111

Which term is used for the 'Vegetative Nervous System'?

Question 112

Which type of nerves are responsible for passing information from the Central Nervous System (CNS) to the organs, and muscles?

Question 113

What is the main role of the cornea?

Question 114

Greyout can be expected at:

Question 115

What problem can occur when flying in an environment of low contrast, like fog, snow, darkness, or haze?

Question 116

In order to treat carbon monoxide poisoning which actions must be followed?

Question 117

Which of the following statements about runways with a down-slope or up-slope is correct?

Question 118

How can a pilot prevent spatial disorientation in flight?

Question 119

How does haze affect your perception?

Question 120

Which of the following gasses has a greater affinity to haemoglobin?

Question 121

What does the blood carry to the tissues?

Question 122

Which symptoms are related to hyperventilation?

Question 123

Which of the following light-sensitive receptors are responsible for peripheral vision?

Question 124

What are the primary effects of carbon monoxide poisoning?

Question 125

What is the connection between two neurons called?

Question 126

How many times does haemoglobin attract to carbon monoxide over oxygen?

Question 127

What does the Peripheral Nervous System (PNS) consist of?

Question 128

The apparent movement of light when stared at for a relatively long period of time in the dark and a dark backround is called:

Question 129

What should be done with the cockpit lights during lightning at night, to support adaptation?

Question 130

Select the correct statement:

Question 131

Which term is used for short-sightedness?

Question 132

What does the visual field consist of?