11.16 Pneumatic Flashcards
If an oxygen bottle falls below 50psi what should you do
Replace it
Why is the pressure regulator close to the actual charging bottle
To reduce the amount of high pressure tubing
What is an indication that an oxygen generator has possibly discharged
Temperature sensitive decals
What is contained in an oxygen system to overcome potential temperature increase during charging
Thermal compensator
What happens when you remove crew oxygen masks from their stowage
Oxygen flows
At what altitude is the critical threshold for life support
20k feet
What are the demands available for the crew masks
Normal, 100% and emergency
Where is the cooling air from the pneumatic system derived
Fan air
What controls the pneumatic bleed valve
The valve is controlled manually from the cockpit but may be closed by the pneumatic controller in the event of a malfunction
When could there be a reverse flow through the pneumatic valve
During engine start
Which component monitors the pneumatic system
The pneumatic controller
What is the electric supply for a toilet flush motor
3 phase AC
What is used to measure the quantity of water In the tanks
Capacitance or reed switch
When are drain mast heaters on
When electrical power is switched on
