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Where can the O2 pressure be read?
- MFD status page
- At the outside oxygen pressure gauge panel
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Where would you find the oxygen system parameters and indications?
MFD status page
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Do the flight deck crew and the pax share the same O2?
- No, the flight deck crew use a single high pressure o2 cylinder
- The pax use chemical o2 generators
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Once the chemical o2 generators are started, can they be shut off?
No
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What is the min o2 for a flight deck crew and color displayed?
- 2 crew. Cyan
- 3 crew. Green
- No dispatch. Amber
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What activates when the flight deck o2 masks are removed from their storage unit?
- Flow of o2
- Mask mic (headset deactivates)
- Flight deck speakers
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What happens if the test / reset button is pressed while the flight deck o2 masks are not stowed?
- Stops the flow of o2
- Deactivates the mask mic
- Deactivates the flight deck speakers
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What type of oxygen will the quick donning flight deck crew masks provide?
Emergency, 100%, normal
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During preflight how would you know if the flight deck crew O2has been over pressurized?
The blowout disk would be missing on the fwd right side of the fuselage to the right of the cargo door.
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What is the O2 duration for the following?
- Pax o2. 12 mins
- PBE. 15 mins
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When will the pax o2 masks automatically deploy?
AUTO on the pax O2 knob and cabin alt between 14,000 and 14,750 MSL
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Can the o2 door dispensing units be opened manually if it fails to automatically deploy?
Yes, by the MRT (there is 1 located at each flight attendant station)
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Selecting the OVRD position on the PAX OXYGEN knob will do what?
Deploys the pax O2 masks regardless of altitude
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What is indicated when the MASK DEPLOYED light is on?
The pax and flight attendant oxygen masks have been deployed.
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What does the PBE provide?
Pressurized O2 and protection from smoke, fumes, and fire for 15mins
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When the pax O2 mask doors are automatically or manually commanded open what signs automatically illuminate?
FASTEN SEAT BELT and NO ELEC DEVICES regardless of switch position
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