Oxygen Flashcards
How big is the supply tank?
123.4 cubic foot
3 subsystems of the oxygen system:
Oxygen storage
Crew Oxygen System
Passenger Oxygen System
What is the normal pressurization of the oxygen tank?
1,800psi @ 70F
What is O2 flow reduced to prior to the supply line to prevent high pressure flow in the cockpit?
60-80psi
What would cause the oxygen cylinder to have to be replaced?
Overpressure of the cylinder between 2500 to 2775
Where is the overboard discharge indicator/the high pressure relief valve located on the airplane for the oxygen cylinder?
Underside of the nose of the aircraft
How would you know if the oxygen cylinder has been vented from over pressurization?
The green disc may be missing, check the O2 prior to flight
When the Oxygen mask is placed to “N,” what percentage of oxygen does it give out?
0-32,000: diluted
32,000-38,000: 100%
38,000 - 45,000: pressurized 100%
What’s the altitude limitation for crew and passenger oxygen masks?
Not approved for use above 40,000 ft cabin altitude
How do you select the microphone in the O2 mask?
MIC button on the audio control panel
