Oxygen Systems Flashcards

1
Q

Where can O2 psi be read?

A
  • MFD “STATUS” page (corrected for temp)
  • At the O2 cylinder panel (un-corrected)
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2
Q

Do the cockpit crew and passengers share the same emergency O2?

A

No

( cockpit crew uses O2 cylinder, passengers use O2 chemical generator )

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3
Q

Once the chemical generators have started, can they be stopped?

A

No

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4
Q

what is the minimum O2 for cockpit crew?

A

Blue for 2

Green for 3

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5
Q

What activates when the flight deck O2 masks are pulled out?

A
  • Flow of O2
  • Mask Mic
  • Flight Deck Speakers
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6
Q

What happens if the TEST/RESET button is pressed while

the flight deck O2 masks are not stowed?

A
  • Stops O2 flow
  • Deactivates Mask Mic
  • Deactivates Flight Deck Speakers
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7
Q

What type of O2 will the flight deck masks provide?

A

Emergency:

  • Pure oxygen with possitive pressure

100%:

  • Pure Oxygen at all altitudes

Normal:

  • Oxygen / Air Mix ( ratio depends on cabin alt )
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8
Q

During Pre-flight, how would you know if the cockpit crew O2 has been over pressurized?

A

The green blow out disc would be missing on the ofrward right side of the fuselage

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9
Q

What is the duration for PAX O2?

A

12 minutes

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10
Q

What is the duration for Flight Attendant O2 cylinder?

A

30 minutes

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11
Q

What is the O2 duration for the PBE?

Up to what altitude will the PBE be of use?

A

15 minutes

FL400

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12
Q

When will the PAX O2 masks auto deploy?

A

Cabin altitude > 14,000’ MSL

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13
Q

Can the PAX O2 doors be opened manually?

A

Yes

( Manual Release Tool )

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14
Q

How many portable O2 cylinders are installed?

What are thier ratings?

A

2

  • 1 in FWD section of cabin and 1 in AFT section
  • 2 masks per cylinder
  • 11 cubic feet
  • 1800’ psi
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15
Q

What is the cylinder size for cockpit’s O2 bottles?

What is the PSI?

A

77 cubic feet

1850 psi @ 70 degrees F

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16
Q

How much time does the Cockpit crew have with a full O2 bottle?

A

Enough time to descent from FL410 to 10k’ in 22 minutes.

THEN to cruise at 10k’ for an additional 98 minutes