Oxygen Flashcards
% nitrogen in air
78
% oxygen in air
21
% inert gas in air
1
When altitude increases what happens to air pressure and density
Air pressure and density decrease
What altitude do effects of exhaustion and sleepiness happen
14000ft
What oxygen is used on aircraft
Aviators
Why is medical not used
Water droplets
Why is technical never used
Contaminated
Cautions for using o2
Open valves slow
Charging too fast causes can overheat and cause explosion
Make sure hands clean & oil free
What are o2 bottles made of
Steel alloys or Kevlar
O2 bottle colour
Dark green
Max capacity of o2 bottle
3200 litres
O2 bottle pressure stored at
1850 psi
What temp is o2 bottle measured at
21 degrees c
How do u work out how full a bottle is
Pressure and temp
Shape of bottle head
Cylinder
What safety device is added to bottle
Disk
What pressure does disk burst
2600 psi
When can you not refill bottle
Pressure under 50psi
What’s the purpose of a thermal compensator
Distribute heat through a large surface area
How is oxygen distributed
Lines and manifolds
Where is the pressure reg located and what does it do
Near oxygen bottles to reduce length of high pressure lines
How is bottle pressure indicated
Direct reading gauge and external pressure gauge located near filling panel
What are the indications of an o2 bottle
Green usually amber when pressure low
