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ERJ 170 Oxygen syst.
Oxygen System questions
| Question | Answer |
|---|---|
| Where can O2 pressure be read? | • MFD ‘STATUS’ page (corrected for temperature)• At the O2 cylinder panel (un-corrected for temperature) |
| Do the cockpit crew and the passengers share the same emergency oxygen? | • No, the cockpit crew uses an O2 cylinder and the cabin passengers use O2 chemical generators |
| Once the chemical O2 generators are started can they be shut off? | NO |
| What is the minimum O2 for a cockpit crew? | • 2 crew “Blue for 2”• 3 crew “Green for 3” |
| What activates when the flight deck O2 masks are removed from their storage unit? | • Flow of O2• Mask microphone• Flight deck speakers |
| What happens if the TEST/RESET button is pressed while the flight deck O2 masks are not stowed? | • Stops flow of O2• Deactivates mask microphone• Deactivates flight deck speakers |
| What type of oxygen will the quick-donning cockpit crew masks provide? | • Emergency Pure oxygen with positive pressure• 100% Pure oxygen at all altitudes• Normal Oxygen/air mixture (ratio depends on cabin altitude) |
| 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 |
| What is the O2 duration for the following? | • Passenger O2 12 min• Flight Attendant cylinder 30 min• PBE 15 min |
| When will the passenger O2 masks automatically deploy | • Cabin altitude of 14,000 MSL |
| Can the O2 door dispensing units be opened manually if it fails to automatically deploy? | • Yes, via a Manual Release Tool (MRT) located at each FA station |
| What does the PBE provide? | • Pressurized O2 and protection from smoke, fumes, and fire up to 40,000 ft for at least 15 minutes• Blue indication: Good• Pink indication: Bad• Vacuum loss: Bad (even with a blue indication) |
| How many portable O2 cylinders are installed in the cabin? | • 2, one in the FWD section and 1 in the AFT section • 2 masks per cylinder |
Created by:
rah170
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