11.15

Question 1

Sea level lung pressure

Answer 1

19.6psi

Question 2

What oxygen do aircraft use and why

Answer 2

Aviator because it’s dry

Question 3

Why don’t we use medical or technical oxygen

Answer 3

There’s droplets in Medical

Technical oxygen is contaminated

Question 4

How far should you be from oxygen when smoking

Answer 4

15m

Question 5

What’s the pressure of o2 bottles

Answer 5

1850psi

Question 6

When is passenger o2 used

Answer 6

If cabin de pressurises

Question 7

When are passenger oxygen masks automatically released

Answer 7

Above 14000ft

Question 8

Where is oxygen stored

Answer 8

Cargo compartment or main equipment centre

Question 9

Oxygen pressure range

Answer 9

1800-1850 psi but can handle up to 2400psi

Question 10

What are o2 bottles made of

Answer 10

Made of alluminum but wrapped with Kevlar

Question 11

How are o2 bottles tested

Answer 11

Hydrostatically tested periodically

Question 12

What is the shut off valve used for on an o2 bottle

Answer 12

To open or close it

Valve has to be fully open or fully closed

Question 13

What does the saftey disk do

Answer 13

Burst when pressure is too high - 2600psi

Question 14

How do bottle indicate their pressure

Answer 14

Direct reading pressure gauge

Question 15

When does the green saftey disk rupture

Answer 15

When safety device opens

Question 16

What happens if green disc ruptures

Answer 16

Each bottle read to find out which one triggered the discharge

Question 17

What’s the purpose of the thermal compensator

Answer 17

Distribute heat through something like a brush with a large surface area

It’s one unit

Question 18

Why must you not disconnect B-nuts

Answer 18

The whole unit will have to be replaced

Question 19

How is oxygen distributed

Answer 19

Through lines and manifolds

Question 20

How is breathing oxygen tape identified

Answer 20

Green band with Black rectangular symbol printed on a white background boarder strip

Question 21

Where is chemical oxygen generator stored

Answer 21

Overhead psu

Question 22

What chemical is in an oxygen generator

Answer 22

Sodium chlorate

Question 23

How many oxygen masks per seat

Answer 23

Extra masks per seat row extra for infants

3 seats 4 masks

Question 24

How many oxygen masks per seat

Answer 24

Extra masks per seat row extra for infants

3 seats 4 masks

Question 25

How long does a oxygen generator last for

Answer 25

10-20 minutes of oxygen

Question 26

What are the one and two step procedures used for

Answer 26

Reduce oxygen pressure

Question 27

How does one step work

Answer 27

Pressure regulator is mounted on bottle to reduce pressure

Question 28

How does 2 step work

Answer 28

Pressure regulator mounted on o2 and then after it to reduce pressure further

Question 29

What is portable oxygen used for and how many people does it supply

Answer 29

Used for emergency and first aid

Supply 2-4 people

Question 30

What’s a full face mask for

Answer 30

Protection from smoke and dangerous gases

Question 31

What two type of o2 makes is there

Answer 31

Full face and continuous flow

Question 32

How is a smoke hood packed and how long does it last

Answer 32

Vacuum packed and lasts 20m

Question 33

How do you know a leak test has found oxygen

Answer 33

Bubbles indicate a leak

Question 34

What’s the flow indicator for

Answer 34

To show system is functioning correctly

Question 35

What is the general colour of a blow out disk

Answer 35

Green

Question 36

What does oxygen flow control unit do

Answer 36

Reduce o2 pressure to a useable level

Question 37

Where is oxygen stored in the gaseous system

Answer 37

Bottles

Question 38

What does the ring line in the cabin do

Answer 38

Connects every psu to flow control unit and transports pressure push