Fuel Flashcards
Are the wing fuel tanks wet or dry?
Wet
What are the three sections of the wing fuel tanks?
Inner, Outer, Feeder.
How many jet pumps does the Inner Fuel Tank have?
3
How many jet pumps does the Outer Fuel Tank have?
3
What type of fuel pumps does the Feeder Tank have?
2 jet boost pumps
1 electrical pump
How many total fuel pumps are on the airplane?
16 jet pumps (3 inner, 3 outer, 2 collector-per wing)
2 electrical pumps(ELPMP) (1 in each collector tank)
2 engine drive pumps
TOTAL 20 Pumps.
Hoe many fuel quantity transmitters are in each wing?
Six
Can you check the fuel quantity if the fuel quantity transmitters fail?
Yes, with floats in each inner and outer tank.
What allows fuel to move outward into the neighboring tank?
One way flapper valves.
Where are the vent tanks?
One in each outer tank.
How can the fuel shutoff valve for each engine be controlled?
- Thrust lever to cutoff.
2. Overhead panel fire button.
Where can you see an indication of the fuel shutoff valve for each engine?
- Overhead panel
- Fuel system page
- Engine page
When do the ELPMP (electric fuel pumps) operate?
- Engine Start
- Crossfeed
- Low Pressure
What supplies high pressure fuel to the jet booster pumps? via what?
Engine Driven Pumps, via a motive flow valve in the HMU.
Where is the refuel panel?
Underside leading edge of the right wing.
