11.17 Water And Waste👌🏼 Flashcards
How does the potable water system get transported to galleys and lavatories?
- potable water system requires pressurisation
When aircraft pneumatic bleed air is unavailable, what is used
- electrical air compressor
How is the electrical air compressor activated
- by a pressure switch thats located between pressure relief valve and 2 check valves
Function of pressure relieve valve
- prevents damage from over-pressurisation
Where is the pressure relief valve located
- between pressure switch and water storage tank
What are shut off valves used for
- to isolate sections of water system
When is completely draining the water systems necessary
- before disinfecting the system
- parking aircraft in freezing weather
- at least every 3 days
Where is servicing of the potable water system carried out
- water service panel
- additional water drain panel (if installed)
Where are the service panels for the potable water system located
- lower part of fuselage
Where does the water go when the tank has been overfilled
- drained overboard
Where can you see the potable water quantity
- attendants panel in cabin
- service panel (lower fuselage)
Are the drain valves operated manually or auto
Manually
Where is the wastewater system drained from
- drain lines and drain masts (overboard draining)
Can the wastewater be also drained to a holding tank ? (Y OR N)
- Yes
Drain masts, waste water lines are electrically heated to prevent water from freezing? (T or F)
True
