Oxygen

Question 1

What are the differences exist between the oxygen mask testing procedures for the CA/FO and the ACM

Answer 1

The ACM does not have a dedicated test sliding control or flow indicator installed on the O2 mask storage box.
Place the ACM mask in to EMER mode while listening through the CA or FO side

Question 2

How can the crew be assured that the oxygen bottle pressure regulating shutoff valve is on

Answer 2

By inspecting the cylinder head location

Question 3

What supplies O2 to the flight crew while wearing the oxygen masks

Answer 3

The fixed oxygen cylinder

Question 4

What is the minimum pressure of the portable oxygen bottle allowed for dispatch

Answer 4

1200 PSI

Question 5

What will occur if the passenger O2 selector knob is set to MANUAL

Answer 5

The oxygen masks will deploy immediately regardless of cabin altitude

Question 6

What is the purpose of the green discharge indicator on the fuselage, adjacent to the oxygen service panel

Answer 6

To provide evidence of over servicing of the oxygen cylinder if its missing or blown out

Question 7

Where can crews look to determine whether sufficient O2 is onboard for 2 or 3 crew members on the flight deck

Answer 7

FRG
EFB
Crew O2 service panel