Pressurization Flashcards
1
Q
Max cabin altitude on a flight over 2.5 hours
A
7460
2
Q
Outflow valve position with the AC on the ground?
A
fully open
3
Q
How many motors can drive the outflow valve?
A
2 in auto, 1 in manual
4
Q
Pressurization - What causes the safety valve to operate?
A
differential pressure of 8.7 psi
5
Q
Max positive and negative differential pressure?
A
9.25/-0.73
6
Q
During single pack operations, if diff pressure reaches above 4 psi, what happens to the outflow valves?
A
Aft outflow valve closes and forward outflow valve controls pressure
