Oxygen

Question 1

How is oxygen flow indicated?

Answer 1

Yellow blinker flow meter.

Question 2

What is the significance of the OXY ON white flags? And the TEST slides?

Answer 2

• 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.

Question 3

How is EMERGENCY OXYGEN flow tested?

Answer 3

• Pressing the EMERGENCY knob generates an overpressure for a few seconds.
• Turning the knob, in the direction of the arrow generates a permanent overpressure.

Question 4

Squeezing the red clips does what?

Answer 4

Unlocks the two flap door, and permits the harness to inflate.

Question 5

How does the over pressure selector work?

Answer 5

• 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.

Question 6

On the SD (doors) OXY (amber) means what?

Answer 6

When the pressure is less than 400PSI.

Question 7

What should you do if the oxygen pressure indication has a half-box (half frame) in amber? And REGUL LO PR is indicated?

Answer 7

Turn the crew supply on by pressing the p/b on the OHP.

Question 8

100%: The mask delivers 100% oxygen

Answer 8

What is the function of the N/100% selector of the oxygen masks in the cockpit?

Question 9

This selector creates an overpressure which eliminates condensation and prevents smoke smell or ashes from entering the mask.

Answer 9

What is the function of the EMERGENCY pressure selector of the oxygen masks in the cockpit?

Question 10

The smoke hood uses a chemical air regeneration system which is the breathing key. The hood should work satisfactorily for at least 20 minutes.

Answer 10

How long should the smoke hood work satisfactorily?

Question 11

14,000ft (+0/-500ft).

Answer 11

At approximately what cabin altitude should the passenger oxygen masks drop?

Question 12

They can be deployed by pressing the MASK MAN ON pb on the overhead panel.

Answer 12

If the oxygen masks fail to deploy automatically how else can they be deployed?

Question 13

From a single bottle.

Answer 13

How is crew oxygen provided?

Question 14

1300 PSI ECAM DOOR/OXY page.

Answer 14

What is the crew oxygen minimum pressure and where can it be read?

Question 15

15 minutes.

Answer 15

You deployed the cabin masks. What is their effective time of use once activated?

Question 16

The BLEED or the DOOR page.

Answer 16

We are on the ground and the engines are not running. What is the appropriate ECAM page to get information about the Oxygen system?

Question 17

It electrically opens a valve in the avionic bay to supply low-pressure crew oxygen

Answer 17

What happens during the pre-flight when you push to extinguish the CREW SUPPLY OFF light?

Question 18

The OXY would change from amber to green

Answer 18

What would you notice on the DOOR ECAM page when you push to extinguish the CREW SUPPLY OFF light?

Question 19

The signal to release the oxygen mask doors has been sent

Answer 19

What does the PASSENGER SYS ON light mean?

Question 20

In a single high-pressure cylinder

Answer 20

Where is oxygen stored for the crew?

Question 21

35,000 Feet

Answer 21

Above what altitude will the crew oxygen masks proved 100% oxygen regardless of the position of the Normal/100% selector?

Question 22

The green disk on the lower left side of the forward fuselage would be missing

Answer 22

What indication would you have of a crew oxygen cylinder thermal discharge?

Question 23

No, you must press the RESET slide switch

Answer 23

Will the crew oxygen mask microphone automatically be deactivated when the mask is stowed?

Question 24

No, the CC may have to manually deploy some of the masks

Answer 24

If the PASSENGER SYS ON light is on, does that mean that all the passenger oxygen masks have deployed?

Question 25

Chemical Oxygen Generators

Answer 25

What method is used to supply passenger cabin supplemental oxygen?

Question 26

Pull the mask toward the seat

Answer 26

How do cabin occupants activate oxygen flow to their masks?

Question 27

13 minutes

Answer 27

How long does the PAX oxygen last?

Question 28

When cabin altitude exceeds 14,000 Feet

Answer 28

When do the masks automatically deploy?