Exam (elaborations)
MESA Airlines E-175 Study Guide (Oxygen system)
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MESA Airlines E-175 Study Guide (Oxygen system)
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Name: Score:13 Multiple choice questions
Term 1 of 13
What is the O2 duration for the following?
Pressurized O2 and protection from smoke, fumes, and fire up to 41,000 ft. for at least 15
minutes
Blue indication: Good
Pink indication: Bad
Vacuum loss: Bad (even with a blue indication)
Cabin altitude of 14,000 MSL
Passenger O2 12 min
Flight Attendant cylinder 30 min
PBE 15 min
2 crew "Blue for 2"
3 crew "Green for 3"
Term 2 of 13
During preflight how would you know if the cockpit crew O2 has been over pressurized?
The green blow-out disc would be missing on the forward right side of the fuselage
No, the cockpit crew uses an O2 cylinder and the cabin passengers use O2 chemical
generators
Stops flow of O2
Deactivates mask microphone
Deactivates flight deck speakers
2, one in the FWD section and 1 in the AFT section
2 masks per cylinder
, Term 3 of 13
What happens if the TEST/RESET button is pressed while the flight deck O2 masks are not
stowed?
Passenger O2 12 min
Flight Attendant cylinder 30 min
PBE 15 min
Stops flow of O2
Deactivates mask microphone
Deactivates flight deck speakers
The green blow-out disc would be missing on the forward right side of the fuselage
Flow of O2
Mask microphone
Flight deck speakers
Term 4 of 13
What type of oxygen will the quick-donning cockpit crew masks provide?
Stops flow of O2
Deactivates mask microphone
Deactivates flight deck speakers
Emergency Pure oxygen with positive pressure
100% Pure oxygen at all altitudes
Normal Oxygen/air mixture (ratio depends on cabin altitude)
2, one in the FWD section and 1 in the AFT section
2 masks per cylinder
No, the cockpit crew uses an O2 cylinder and the cabin passengers use O2 chemical
generators
Term 5 of 13
Do the cockpit crew and the passengers share the same emergency oxygen?
Yes
No
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