Oxygen System Flashcards
What are the essential times that Oxygen and Emergency equipment are essential for pax and crew?
- Fire
- Depressurization
- Ditching and Emergency evacuation
The oxygen system consists of?
- Flight Deck
- Cabin
- Portable
The flight deck oxygen system consists of what?
When the mask stowage doors open what is inhibited?
Headset and handset microphones
What does the flashing yellow cross blinker indicate?
Oxygen is flowing
Explain the N/100% toggle switch!!
Enables selection of pure oxygen, or a mixture of oxygen and cabin air.
What happens when the regulator is set to N?
The regulator supplies a mixture of oxygen and cabin air.
What happens when the regulator is set to 100%
The regulator supplies 100% pure oxygen!!
At what altitude would the wearer breathe 100% pure oxygen, regardless of selector position?
FL350
What does the EMERGENCY control flow knob, in the oxygen mask, do?
What is normal cylinder pressure for oxygen?
1850psi
When do passenger oxygen mask automatically deploy, and how long is the duration of oxygen output?
14,500 ft and 13 mins
The portable oxygen system consist of what?
- Portable oxygen bottles
2. Protective Breathing Equipment.
Where are the portable oxygen bottles located?
Near each each Flight Attendant(FA) station.
Each bottle has two color-coded regulated outlets. What do the colors mean?
Preset to provide appropriate flow rates.
How long does the Protective Breathing Equipment(PBE) last when being used?
15mins
Where the PBEs located in the aircraft
- one in Flight Deck
- Two in FWD Galley
- One in Aft Galley
How is oxygen vented when there is an over pressure in the oxygen bottle?
Through the oxygen overboard discharge vent.
Emergency equipment in the Flight Deck:
Emergency equipment in the cabin(airline specific):
Different classes of fire extinguishers on-board are?
Class A-Combustible
Class B-Flammable Liquids
Class C-Electrical
*extinguishers usually discharge for approximately 15 to 20 seconds.
Water extinguisher is used for what class only?
Class A, and discharges for approximately 30 to 45 seconds.
True or False:
The overwing emergency exit has to be manually armed to activate the overwing slide?
False. The overwing exit is always armed.
What indication is there for a low battery on the flashlights?
The LED battery condition indicator flashes red every 10 seconds
