B777 FUEL

1. How does the APU receive fuel prior to establishing AC power?

The APU a cannot operate without AC power.

The APU will operate without a fuel pump.

The left main tank has a DC fuel pump to operate the APU.

The center tank has a DC fuel pump to operate the APU.

2. When the EICAS message, FUEL LOW CENTER is displayed, and the center tank override/jettison pumps are turned off, what happens to any remaining fuel in the center tank?

Main tank pump pressure prevents any further fuel transfer.

A scavenge pump automatically transfers any remaining center tank fuel to the main tanks.

The center tank fuel valves automatically close.

The pumps can be turned on again to empty the center tank.

3. The normal fuel burn sequence is:

Center tank fuel feeds both engines until empty then the main tanks feeds then respective engines.

Tank to engine feed is selected by configuring the fuel pumps and crossing valves.

Left and right main tank to the respective engine and the center tank resupplies the main tank fuel.

4. Why does the center tank fuel feed to the engines before main tank fuel under normal conditions?

Check valves prevent use of the main tank fuel before using center tank fuel.

The center tank fuel pumps have higher output pressure than the main tank fuel pumps.

The center tank fuel pumps are selected ON before the main tank fuel pumps.

The main tank pumps are in STANDBY until the EICAS message FUEL LOW CENTER is displayed.

5. During preflight with only APU electrical power in use, you note that all main and center tank fuel pump switches are OFF but the left forwarded pump PRESS light is not displayed. Are these indications correct if the APU is opening.

Yes. The left forwarded PRESS light is extinguished indicating the APU is on and automically using pump.

Yes. The left forwarded forward PRESS light is extinguished indicating the DC pump is on.

No. the right forward PRESS light should also be extinguished/

No. All of the PRESS lights should be extinguished when the fuel pumps are commanded off.

6. Which fuel pump are used for jettison?

Left and right main tank fuel pumps and the center tank override pumps.

Left and right main tank jettison pumps only.

Left and right main tank jettison pumps and the center tank jettison/ override pumps

All fuel pumps are used for fuel jettison.

7. 361.What happens when you pull the Fuel-to-Remain selector to the ON position?

Automatically begins fuel jettison

Initialize fuel-to-remain at the MLW quantity.

The jettison nozzle valves are selected open in flight.

Turns on both main tank jettison pumps and opens both center tank jettison isolation valves.

8. What temperature is displayed below the Total fuel indication?

TAT (total air temperature)

SAT (static air temperature)

Fuel freeze temperature

Fuel temperature

9. What is the condition when the Crossfeed valve light is illuminated amber?

Crossfeed valve not is the selected position.

The crossfeed valve is selected off.

Fuel quantity is 1000 pounds or 500 kgs low in one main tank and need to be balanced.

The crossfeed valve is selected on.

10. Balancing fuel requires the use of :

Either crossfeed valve and both pumps in the low main tank.

Both crossfeed valves and both pumps in the main tank.

Either crossfeed valve and both pumps in the high main tank.

Both crossfeed valves and both pumps in the low main tank.

11. Which statement about the Fuel temperature display is true?

Fuel temperature is displayed on the PFD (primary flight display)

Fuel temperature display turns amber when approaching the fuel freeze point entered in the FMS CDU.

Fuel temperature display turns amber during a fuel overheat condition.

12. When does the EICAS message FUEL PUMP CENTER L display?

When the fuel quantity of either L or R main tanks exceed the fuel quantity of the center tank.

When the center tank contains fuel and the fuel pump switch is OFF.

When the center tank is empty and the pump switch is OFF.

When the center tank left fuel pump output pressure is low.

13. Which statement about the Fuel Pumps is true?

Each fuel tank contains two DC-powered fuel pumps.

Two pumps are required to supply sufficient fuel to operate one engine under all conditions

A single pump can supply sufficient fuel to operate one engine under all conditions.

The center tank fuel pumps turn off automatically when the low pressure light illuminates during the fuel burn sequence.

14. Before a normal ground start, the right center tank pump PRESS light is illuminated however, the EICAS message FUEL PUMP CENTER R is not displayed. Is this a normal indication?

Yes, one pump is electrically load shed and the message is inhibited.

Yes, center tank fuel is not used during engine start and the message is inhibited.

No, the EICAS message is never inhibited.

No, the EICAS message will be displayed after a short sensing delay.

15. What statement about fuel jettison is not correct?

Fuel jettison is possible from all tanks.

The jettison nozzles can not open on the ground even when the NOZZLE switches are in the ON position.

Jettison automatically stops when a value just above the TO REMAIN quantity is reached.

Jettison time remaining is not available.

16. What actions happens when the Fuel Jettison Arm switch is pushed o the ARMED position before the L and R Nozzle switches are turned ON?

It automatically begins fuel jettison.

Initializes fuel-to-remain at the MLW quantity.

The jettison nozzle valves are selected open in flight.

Turns on both main tank jettison pumps and opens both center tank jettison isolation valves.

17. Which statement about the Fuel Jettison system is true?

Fuel jettison occurs from the center tank first.

18. What happens when you pull the FUEL-to-Remain selector to the ON position?

Automatically selects the MLW fuel-to-remain quantity.

Initiates the fuel-to-remain manual setting to the current total fuel quantity.

Changes the fuel-to-remain quantity selection from MWL to MAN.

Automatically selects the MWL fuel-to-remain equal to ZFW.

19. Which of the following statements is true when the FUEL IMBALANCE message is displayed?

A solid white fuel imbalance pointer is displayed beside the tank with the low quantity.

A flashing amber fuel imbalance pointer is displayed beside the tank with the low quantity.

A solid amber fuel imbalance pointer is displayed beside the tank with the low quantity.

The fuel quantity indicator in the low tank turns amber.

20. Which statement is not accurate concerning the EICAS caution message FUEL PRESS ENG L?

Crossfeed may be necessary to prevent thrust decay.

Both left main fuel tank pumps are operating at a lower pressure.

The left engine is using suction feeds from the left main fuel tank.

The message can not display with fuel in the center tank.

B777 Fuel