Oxygen Flashcards
0
Q
How do you know a PBE vacuum seal is good?
A
The good condition indicator will turn from blue to pink indicating it is unserviceable.
1
Q
O2 mask modes
Emergency:
100%:
Norm:
A
Emerg: supplies pure O2 under positive pressure
100%: supplies pure O2 at all altitudes
Norm: supplies O2 mixture on demand (ratio depends on alt)
2
Q
How long and to what altitude will a PBE provide protection?
A
15 min. And up to 40,000 ft.
3
Q
When do Pax O2 mask auto-deploy? How long do they provide O2?
A
Cabin alt 14,000-14,759ft.
Approx 12 min.
Turns on seatbelt and no smoking/ PED signs
4
Q
What is min. pressure for dispatch on the portable O2 bottles? How many?
A
Min pressure is 1550
2 (3 for 175)
