B763 Fuel

Will all pumps come on when their respective switch is ON?. Yes. No, the L fwd pump is for the APU only. The center tank pumps will not come on until the respective engine is started. None of the above.

The FUEL CONFIG light is illuminated in case of: Imbalance between left and right main tanks. Low fuel quantity. Center tank fuel pumps off with fuel remaining in center tank. All of the above.

Surge tanks are installed in each wing tip to accomodate fuel expansion: TRUE. FALSE.

The main tanks fuel pumps have approximately twice the output pressure of the center tanks. TRUE. FALSE.

How are the fuel quantity figures of the FUEL QTY panel computed?. By fuel processors that receive data from sensors located in fuel tanks. By FMC through the measurement of fuel flow. By fuel processors and by FMC.

What action, if any, is required when starting the APU with battery power only?. The left forward DC pump must be placed ON. The DC fuel pump switch must be switched ON prior APU start. No action is required, the DC fuel pump starts automatically.

If no boost pumps are available, engines can suction fuel from main tanks only. FALSE. TRUE.

Where does the total fuel value come from?. From a separate calculation in the fuel quantity processor. Sum of Left, Center and Right quantity indications. Separate probes in the fuel tanks.

When fuel pumps are swtiched ON prior engine start, main fuel pumps come ON immediately but center pumps do no, why?. Center pumps are inhibited on ground. Center pumps are inhibited with APU operating. Center pumps malfunctioned. Center pumps are inhibited when N2 is below 50%.

Can the L FWD pump be switched OFF if its supplying fuel to the APU on the ground with the APU running?. No, the pump cannot be turned off. Yes, by pushing the DC fuel pump switch ON. Yes, by pushing its respective switch ON then OFF.

The Boeing 767-300 can only Jettison fuel from the. L & R tanks. Center tank. All fuel tanks.

You manually enter total fuel volume into PERF INIT page. On what will the FMCs base their fuel computations?. Calculated value. Totalizer value.

Fuel temperature is taken from. Center tank. Right main tank. Left main tank.

Wing main tank pumps PRESSURE light comes ON for: Low pressure. Pump switch off. All are correct. Pump failure.

Can teh aircraft be fueled with all power off?. NO. YES.

With the engines running, when will the center pump Low Pressure lights illuminate?. When pump pressure is low and no usable fuel is in the center tank. Only when the pumps are switched off. Only when the pumps are OFF or the tank is empty.

The Centre tank Fuel Pumps: operate at the same output pressure as the main tank fuel pumps. are inhibited when the associated engine N2 falls below 50%. cannot therefore be operated with the engines shutdown on the ground. both (b) and (c) are correct.

With the APU generator powering the airplane, fuel is supplied to the APU by the: Left aft AC pump. Right aft AC pump. Left forward AC pump. Right forward AC pump.

How can you tell if the fuel pumps switch is OFF?. The bar & ON will be out of view. the bar will be in view. the ON will be in view.

The Crossfeed VALVE light(s) means: Valve position agrees with switch. Valve position disagrees with switch. Crossfeed valve is open. None of the above.

The Fuel CONFIG light indicates: that both Centre fuel pump switches are OFF with greater than 1400 lb in the centre tank. a fuel imbalance of 2000 lb (+/- 500 lb) between main tanks. that total usable fuel in either main tank is less than approximately 2200 lb. any of the above.

Which statement is NOT true?. Centre tank pumps have approximately twice the output pressure of the main tank fuel pumps. Wing tanks are connected to surge tanks to provide room for over-filling or thermal expansion. The fuel quantity displayed on the overhead panel is not corrected for density and temperature. Fuel must be kept at least 3°C above freezing.

An illuminated Main tank pump PRESS Light indicates: pump output pressure is low. the Pump has failed. the pump switch is OFF. any of the above.

Which of the following statements is true?. Any fuel pump can feed any engine. The engines can only gravity feed from their respective main tank. When suction feeding an engine, thrust deterioration or flameout may occur at high altitudes. All of the above.

Can one Crossfeed valve perform the fuel balancing procedure or both are required?. Both are required. Yes, one is enough but will take more time. Yes, only when main tanks are aproximately at 50%.

Center scavenge system transfer remaining Center tank fuel to main tanks when these are approximately half emtpy: TRUE. FALSE.

DC fuel pump on Left main tank has no control or indication in the cockpit: TRUE. FALSE.

Surge tanks in wings accommodates fuel expansion and direct fuel to the main tanks. TRUE. FALSE.

Fuel panel inhibits Center tank pumps logic on ground. TRUE. FALSE.

Loadshedding of window heat occurs during fuel jettison. TRUE. FALSE.

Reseting of Fuel pumps circuit breakers is only permitted in flight. TRUE. FALSE.

Fuel jettison rate is approximately: 900 lb / min. 2600 lb / min. 1300 lb / min. 2200 lb / min.

Blank indications on overhead fuel gauge means: No power or failure. The fueling panel is open on ground. Fuel is being sensed and fuel figures will appear in few seconds.

INSUFFICIENT FUEL message displayed when Totalizer and Calculated fuel differ on 2200 lb or more at destination. TRUE. FALSE.

FUEL JET NOZ message in EICAS when: The associated fuel jettison transfer valve is not in the commanded position. In flight, indicates one or both fuel nozzle valves are open. In flight, the nozzle valve position disagrees with the commanded position.

L or R FUEL SYS PRES EICAS message if all fuel pumps of the same side are OFF or have low output pressure. TRUE. FALSE.

Both Crossfeed valves must be operating for opposite engine feeding. TRUE. FALSE.

The total fuel capacity of the B767-300 is approximately: 140.000 lb. 150.000 lb. 160.000lb. 170.000 lb.

If predicted fuel a destination is less than FMC reserve fuel …………. CDU message will be displayed: FUEL CONFIG. INSUFFICIENT FUEL. FUEL DISAGREE.

if FUEL DISAGREE message is displayed on CDU, Pilots should: Carry out the QRH NNC fuel leak. Set correct value manually on CDU PROG page. Message may be displayed in cruise but no longer displayed just prior descent.

How many minutes will take to jettison the fuel of the Center tank, assuming the Center tank is full. 10. 30. 60. 40.