Oxygen

Question 1

Where does oxygen for the flight deck come from?

Answer 1

Fixed oxygen system

Question 2

What is the minimum pressure for the fixed oxygen system when there are two crew members onboard the aircraft?

Answer 2

1050 PSI

Question 3

What is the minimum pressure for the fixed oxygen system when there are three crew members onboard the aircraft?

Answer 3

1450 PSI

Question 4

T/F: Pilots have to manually release the pressure in the oxygen tank for the fixed oxygen system so it doesn’t over pressurize.

Answer 4

FALSE, it has automatic relief valves (and blow out disk to indicate)

Question 5

T/F: There is an automatic pressure relief valve which prevents over-pressurization for the fixed oxygen system.

Answer 5

TRUE

Question 6

How many quick donning oxygen mask are there in the flight deck?

Answer 6

3, one for each pilot seat

Question 7

Pilots should be able to don the quick donning mask in fewer than _____ seconds.

Answer 7

5 seconds

Question 8

Which oxygen setting supplies a mix of oxygen and ambient air?

Answer 8

NORMAL

Question 9

Which oxygen setting will just supply 100% oxygen?

Answer 9

100% Switch

Question 10

Which oxygen setting will supply 100% oxygen under positive pressure?

Answer 10

EMERGENCY

Question 11

What is the maximum time a PBE can supply oxygen for?

Answer 11

15 minute maximum

Question 12

How many PBEs are there onboard the aircraft?

Answer 12

4 (1 in the cockpit, 1 in the FWD cabin, and 2 in the AFT cabin)

Question 13

T/F: There is a first aid oxygen bottle onboard the aircraft.

Answer 13

TRUE

Question 14

What does it mean if the green blowout disc is discovered during preflight to be ejected?

Answer 14

The crew fixed oxygen system has experiences an over-pressurization