Oxygen Flashcards
Where does oxygen for the flightdeck come from?
Crew fixed oxygen system.
What is the minimum pressure for the fixed oxygen system when there are two crew members onboard the aircraft?
1050 psi.
What is the minimum pressure for the fixed oxygen system when there are three crew members onboard the aircraft?
1450 psi.
T or F: pilots have to manually release the pressure in the oxygen tank for the fixed oxygen system so it doesn’t over-pressurize.
False.
T or F: there is an automatic pressure relief valve which prevents over-pressurization for the fixed oxygen system.
True.
How many quick donning masks are there in the flight deck?
Three.
Pilots should be able to don the quick donning mask in few than ____ seconds.
Five.
Which oxygen setting supplies a mix of oxygen and ambient air?
NORM.
Which oxygen setting will just supply 100% oxygen?
100% switch.
Which oxygen setting will supply 100% oxygen under positive pressure?
EMER.
What is the maximum time a PBE can supply oxygen for?
15 minutes.
How any PBEs are there onboard the aircraft?
Four.
T or F: there is a first aid oxygen bottle onboard the aircraft.
True.
What does it mean if the green blowout disc is discovered during preflight to be ejected?
An over-pressurization of the crew fixed oxygen bottle.
