Oxygen

Question 1

% nitrogen in air

Answer 1

78

Question 2

% oxygen in air

Answer 2

21

Question 3

% inert gas in air

Answer 3

1

Question 4

When altitude increases what happens to air pressure and density

Answer 4

Air pressure and density decrease

Question 5

What altitude do effects of exhaustion and sleepiness happen

Answer 5

14000ft

Question 6

What oxygen is used on aircraft

Answer 6

Aviators

Question 7

Why is medical not used

Answer 7

Water droplets

Question 8

Why is technical never used

Answer 8

Contaminated

Question 9

Cautions for using o2

Answer 9

Open valves slow
Charging too fast causes can overheat and cause explosion
Make sure hands clean & oil free

Question 10

What are o2 bottles made of

Answer 10

Steel alloys or Kevlar

Question 11

O2 bottle colour

Answer 11

Dark green

Question 12

Max capacity of o2 bottle

Answer 12

3200 litres

Question 13

O2 bottle pressure stored at

Answer 13

1850 psi

Question 14

What temp is o2 bottle measured at

Answer 14

21 degrees c

Question 15

How do u work out how full a bottle is

Answer 15

Pressure and temp

Question 16

Shape of bottle head

Answer 16

Cylinder

Question 17

What safety device is added to bottle

Answer 17

Disk

Question 18

What pressure does disk burst

Answer 18

2600 psi

Question 19

When can you not refill bottle

Answer 19

Pressure under 50psi

Question 20

What’s the purpose of a thermal compensator

Answer 20

Distribute heat through a large surface area

Question 21

How is oxygen distributed

Answer 21

Lines and manifolds

Question 22

Where is the pressure reg located and what does it do

Answer 22

Near oxygen bottles to reduce length of high pressure lines

Question 23

How is bottle pressure indicated

Answer 23

Direct reading gauge and external pressure gauge located near filling panel

Question 24

What are the indications of an o2 bottle

Answer 24

Green usually amber when pressure low

Question 25

Where are masked stored in cockpit

Answer 25

Stowage box

Question 26

How many masks available in cockpit

Answer 26

4 - 2 for pilot 2 for observes

Question 27

How do you know when there’s oxygen flow

Answer 27

Flow indicator blinks

Question 28

What type of mask is an oxygen mask

Answer 28

Full face quick donning mask

Question 29

How quick can flight crew put mask on

Answer 29

One hand in 5 seconds

Question 30

What are the operating modes of oxygen masks

Answer 30

Normal
100% o2 which is used above 35000 ft
Emergency

Question 31

Cabin pressure normally

Answer 31

8000 ft

Question 32

What altitude does o2 mask auto deploy

Answer 32

14000 ft

Question 33

Why is there a special tool for opening single stowage boxes

Answer 33

So you don’t activate the whole system

Question 34

Systems oxygen is supplied with

Answer 34

Chemical and gaseous

Question 35

Tempteture of decomposition of sodium chlorate

Answer 35

350 degrees

Question 36

How long does an activated generator produce oxygen for

Answer 36

12-15m

Question 37

What is the purpose of smoke hood

Answer 37

Provide protection to eyes and lungs

Question 38

How long do smoke hoods provide a breathable environment

Answer 38

30m

Question 39

What are the types of masks with portable cylinders

Answer 39

Full face and continuous flow used for first aid