Fuel System Flashcards
The wing fuel tanks each contain a NACA air intake, a vet valve equipped with a flame____________ under the wing, a surge vent tank in the wingtip and a _______ box near the wing root.
Arrestor, collector
The fuel system of the EMB-135BJ consists of ____ wing fuel tanks with a capacity of ______ each, ____ auxiliary fuel tank systems with a total capacity of _______ each, _____ ventral tank with a capacity of ______, _______ total electric boost pumps, _____ transfer ejector pumps and various shutoff and check valves.
2 wing tanks 6001 lbs each (650) 4 Aux tanks 6922 lbs total (650) 1 ventral tank 1810 lbs total (650) 12 electric pumps 2 ejector pumps
The transfer ejector pump operates by utilizing:
Fuel pressure
The purpose of the transfer ejector pump is to:
help keep the collector box filled
The fuel cross-feed valve fully opened position is indicated on the EICAS by the ________ ________ ________ advisory message
FUEL XFEED OPEN
Pressurized refueling is normally performed with the aircraft electrically energized but may be performed on ________ power
Battery
If the electric driven fuel pump pressure drops below 6.5 psi on the inlet side of the FPMU
The EICAS cautions message “FUEL LOW PRESS” may illuminate and the remaining pumps will automatically cycle on and off until the pilot selects another pump
The aircraft is equipped with a direct quantity measuring system consisting of ______ measuring points under each wing.
3
The purpose of the cross-feed selector is for:
Transferring fuel from the wing to the cross-side engine
One electric fuel pump in each tank is required to be operating during ________ and _________
Takeoff, Go-around
If the fuel cross-feed selector is set to the LOW 1 Positon:
The corss-feed valve opens and turns off the left electric boost pump
The fuel pump power switch energizes the selected ______________.
Fuel Boost Pump
The fuel pump selector switch selects:
Pumps A,B, or C in the associated wing tank
During take-off and go-around, the FUS TK XFER selector must be set to ________
Off
The “FUEL IMBALANCE” message will occur when one tank differs by ________ lbs. from the other tank. The message will disappear when the difference decreases below _______ lbs.
800, 100
Wing electric fuel pump A is powered buy the on-side ________, fuel pump B is powered by the off-side _________, and fuel pump C and all Aux tank pumps are powered by the on-side _______ DC buses.
Essential Bus, Essential Bus, Main
The fuel low temperature sensor is located in the _______ wing tank
Left
If the fuel does not contain an icing inhibitor, the temperature of the fuel leaving the FCOC must be above _____ degrees C
4
The pressure limits for pressure refueling are _______ to _______ psi
35 to 50
Forward AUX tanks initiate transfer operations into _______ wing tanks when the #2 wing tank is below _________, (AUX tanks full)
4,189 lbs
Aft AUX tanks initiate transfer operations into ___________ wing tank when the #1 wing tank is below __________.
Left, 4,189 lbs
The FUS1/Fus2 aux tanks should only be transferred during ______ operations
Curise
The pilot can confirm transfer of AUX fuel by noting the FUS fuel quantity decreasing and by the _____ on the MFD.
T
the main wing unusable fuel is normally _______ lbs, but increases to _______ lbs with an electric fuel pump inoperative
39, 365
