Human Factors

Question 1

What does retina have? And what do they do?

Answer 1

Cones and rods

Cons - bright light

Rods - night vision

Question 2

What us rhe technique to see objects clearky wt night

Answer 2

Look 5-10 degrees off of their centre

Question 3

How long for eyes to adapt to the dark?

Answer 3

30 mins

Question 4

What is autokinesis

Answer 4

If you look at a single point of light for a while, it can appear to move

Question 5

What is false horizon

Answer 5

Occurs when natural horizon is obscured

Question 6

What kind of approach will narrow, wide and snow coveredrunway produce?

Answer 6

Narrow - lower approach

Wide - higher approach

Snow covered - lower approach

Question 7

What effect does fog have on pitch

Answer 7

Can cause illusiion of pitching up

Question 8

What is flicker vertigo and what does it cause and how to prevent?

Answer 8

Happens due to flashing lights

Nausea or unconsciousness

Avoid looking at light source through propellor

Question 9

What is vestibular disorientation

Answer 9

When vestibular system sends misleading signals to brain

Question 10

What is coriolis illusion

Answer 10

When during turn, you turn head too much

Question 11

What is graveyard spiral

Answer 11

Loss of altitude in turn can give imprsssion of level descent thus wanting to tighten the turn

Question 12

What is leans

Answer 12

Abrupt recovery from a bank makes your brain think that it banked in other direction

Question 13

What is somatogravic illusion

Answer 13

Rapid acceleration can produce climb effect in brain

Question 14

What is inversion illusion

Answer 14

Abrupt change from climb to straight forward can cause backward tumbling effect

Question 15

What is oxygen attached to in your body?

Answer 15

Hemoglobin

Question 16

What is Hypoxia

Answer 16

It is when tissues in the body don’t recieve enough oxygen

Question 17

What are the types of hypoxia

Answer 17

Hypoxic, hypemic, stagnant and histotoxic

Question 18

When does hypoxic hypoxia occur?

Answer 18

Decrease of oxygen molecules at sufficient pressure

Can be fast in rapid decompression at high altitude

Can be fast in at low altitudes

Question 19

What is time or useful consciousness

Answer 19

Time you have at any given altitude following an oxygen loss

Question 20

What is hypemic hypoxia

Answer 20

When your blood is not able to carry sufficient oxygen

Can happen due to different diseases

Question 21

What is the most common type of hypemic hypoxia

Answer 21

Carbon monoxide poisoning

Question 22

What is stagnant hypoxia

Answer 22

When body fails to circulate blood effectively

Maybe due to heart attack or excess G force

Question 23

Histotoxic Hypoxia

Answer 23

Inability of cells to use oxygen

Can be caused due to narcotics

Question 24

What part is for oxygen in FAR

Answer 24

91.211

Question 25

What are oxygen requirements at different altitudes

Answer 25

Till 12500 - no requirement 12,500 - 14,000 - oxygen for flt time more than 30 mins at this altitude 14,000 - 15,000 - oxygen for all crew members Above 15,000 - oxygen for all occupants

Question 26

Types of oxygen masks

Answer 26

Continuous flow, demand and pressure demand

Question 27

What kind of oxygen to be used

Answer 27

Aviator’s breathing oxygen

Question 28

When dies hyperventilations occur?

Answer 28

When breathing rate increases too much

Question 29

Common symptoms of hyperventilation

Answer 29

Headache, euphoria, drowsiness

Question 30

What tube in ear to equalise pressure

Answer 30

Eustachian tube

Question 31

What is valsalva maneuvrr

Answer 31

Pinching nose and let aie out forcibly

Question 32

What are bends

Answer 32

Nitrogen forms bubbles in the tissues and blood

Question 33

Recommended waiting time and for what altitude

Answer 33

8000 ft 24 hrs 12 hrs if non controlled

Question 34

What is Alcohol blood content and wait time

Answer 34

0.04% 8hrs