Oxygen Flashcards
How is oxygen flow indicated?
Yellow blinker flow meter.
What is the significance of the OXY ON white flags? And the TEST slides?
- As soon as the left flap door opens, the mask is supplied with oxygen and, once it closes (mask still supplied with oxygen).
- Presses and pushes it in the direction of the arrow to test the operation of the blinker, the regulator supply, system sealing downstream of the valve and the regulator sealing and system operation.
How is EMERGENCY OXYGEN flow tested?
- Pressing the EMERGENCY knob generates an overpressure for a few seconds.
- Turning the knob, in the direction of the arrow generates a permanent overpressure.
Squeezing the red clips does what?
Unlocks the two flap door, and permits the harness to inflate.
How does the over pressure selector work?
- Overpressure supply is automatically started when cabin altitude exceeds 30,000’
- Overpressure supply is available only when the N/100% selector is set on the 100% position.
On the SD (doors) OXY (amber) means what?
When the pressure is less than 400PSI.
What should you do if the oxygen pressure indication has a half-box (half frame) in amber? And REGUL LO PR is indicated?
Turn the crew supply on by pressing the p/b on the OHP.
100%: The mask delivers 100% oxygen
What is the function of the N/100% selector of the oxygen masks in the cockpit?
This selector creates an overpressure which eliminates condensation and prevents smoke smell or ashes from entering the mask.
What is the function of the EMERGENCY pressure selector of the oxygen masks in the cockpit?
The smoke hood uses a chemical air regeneration system which is the breathing key. The hood should work satisfactorily for at least 20 minutes.
How long should the smoke hood work satisfactorily?
14,000ft (+0/-500ft).
At approximately what cabin altitude should the passenger oxygen masks drop?
They can be deployed by pressing the MASK MAN ON pb on the overhead panel.
If the oxygen masks fail to deploy automatically how else can they be deployed?
From a single bottle.
How is crew oxygen provided?
1300 PSI ECAM DOOR/OXY page.
What is the crew oxygen minimum pressure and where can it be read?
15 minutes.
You deployed the cabin masks. What is their effective time of use once activated?
The BLEED or the DOOR page.
We are on the ground and the engines are not running. What is the appropriate ECAM page to get information about the Oxygen system?
It electrically opens a valve in the avionic bay to supply low-pressure crew oxygen
What happens during the pre-flight when you push to extinguish the CREW SUPPLY OFF light?
The OXY would change from amber to green
What would you notice on the DOOR ECAM page when you push to extinguish the CREW SUPPLY OFF light?
The signal to release the oxygen mask doors has been sent
What does the PASSENGER SYS ON light mean?
In a single high-pressure cylinder
Where is oxygen stored for the crew?
35,000 Feet
Above what altitude will the crew oxygen masks proved 100% oxygen regardless of the position of the Normal/100% selector?
The green disk on the lower left side of the forward fuselage would be missing
What indication would you have of a crew oxygen cylinder thermal discharge?
No, you must press the RESET slide switch
Will the crew oxygen mask microphone automatically be deactivated when the mask is stowed?
No, the CC may have to manually deploy some of the masks
If the PASSENGER SYS ON light is on, does that mean that all the passenger oxygen masks have deployed?
Chemical Oxygen Generators
What method is used to supply passenger cabin supplemental oxygen?
Pull the mask toward the seat
How do cabin occupants activate oxygen flow to their masks?
13 minutes
How long does the PAX oxygen last?
When cabin altitude exceeds 14,000 Feet
When do the masks automatically deploy?
