Oxygen

Question 1

What is represented by the white SYS ON light? [OXYGEN Panel]

Answer 1

An automatic or manual signal to open the oxygen mask doors has been triggered (Auto = 14,000 cabin altitude)

Question 2

What occurs when the guarded MASK MAN ON pushbutton is pressed? [OXYGEN Panel]

Answer 2

The mask doors are manually signaled to open

Question 3

What triggers the signal to be sent for deployment of passenger oxygen masks, when the MASK MAN ON pushbutton is guarded in auto? (OXYGEN Panel)

Answer 3

The mask doors are signaled to open automatically when the cabin altitude exceeds 14,000’

Question 4

When the Crew Supply pushbutton OFF light is illuminated, what secondary indication will be displayed and where will it be present? (OXYGEN Panel)

Answer 4

Valve is closed accompanied by an amber OXY indication on ECAM Door page

Question 5

After replacing the O2 mask, why is it necessary to press the TEST/RESET button?

Answer 5

Cuts off O2 flow to the mask and cuts off the oxygen mask microphone

Question 6

What is indicated when the Crew Supply pushbutton OFF light is displayed? [Oxygen Panel]

Answer 6

When illuminated - Valve is closed accompanied by an amber OXY indication on the ECAM door page