Fuel

Question 1

Fuel Capacity

Answer 1

29,500 lb (4,370 gal)

Question 2

Wing Fuel Tanks

Answer 2

Each wing:
(5) Compartments
(6) Drains
NACA vents - provide positive internal pressure and protects against under/over-pressurization. Allows vapors and air to escape during refueling; Air to enter as fuel consumed.
(1) Hopper tank
(2) Boost pumps
Temp Probe - Left Hopper only

Baffle ribs with flapper valves (on bottom of ribs) - allow fuel to flow through to ea compartment w/o much slushing and not backward.
Any fuel below flapper valves moves towards hoppers through “weep holes”

Question 3

What is the Plenum?

Answer 3

“Vent Tank”
Catches fuel during transient maneuvers. Drawn back into to the tank when back at stable flight.
Allows for 2% fuel expansion.

Should be drained of fuel prior to any takeoff.

Question 4

Hopper Tanks

Answer 4

Capacity = 190 gal / 1,283 lb

Each has:
(3) Flapper valves - keep tank full (gravity)
(2) Boost pumps (electric)
(1) Ejector pump - motive flow from fuel boost pump pressure to draw fuel from tanks into hopper @ 4,450 lb/hr
Hydraulic fluid-to-Fuel Heat Exchanger

Question 5

Which hopper has the APU fuel supply line?

Answer 5

Left.

Question 6

Which hopper has the fuel tank temperature sensor?

Answer 6

Left

Question 7

A fuel quantity system test results in…?

Answer 7

7000-7000-14000 in amber inverse video on all synoptic pages displaying fuel info and
amber “L-R FUEL LEVEL LOW” CAS

Question 8

How do you check the quantity of fuel being added to the aircraft?

Answer 8

Remote fuel panel
Fuel truck

Question 9

If auto refueling has been accomplished since the last flight you should check that…?

Answer 9

Auto refuel switch on the Remote Refueling Panel is selected off

Question 10

On E-Batts, how can the pilot confirm the fuel quantity?

Answer 10

MCDU 1

Question 11

How do you use the remote fuel panel?

Answer 11

Set desired fuel quantity
Select AUTO
* displays next to amount

Question 12

Which manual describes FUELING PROCEDURES?

Answer 12

AOM Chp 9 Handling and Servicing

Question 13

How do you transfer fuel from tank to tank?

Answer 13

Intertank valve

L ESS DC Bus

Question 14

How do you balance fuel using the inter tank valve?

Answer 14

Rotate Rudder Trim in direction of heavy wing, resulting in 1/2 trapezoid displacement
Open Intertank Valve

Question 15

During pressure fueling, the FQSC (fuel qty signal conditioner) monitors intertank quantities. What happens if an imbalance of 500 lb occurs?

Answer 15

FQSC interrupts fueling to the heavy side until imbalance is reduced to 100 lb

Question 16

At what level with a FUEL LEVEL LOW cas appear?

Answer 16

650 lb in a hopper tank

Question 17

The auto refueling sys ground service control panel (cockpit) uses electrical power from what bus?

Answer 17

The Ground Service bus

Question 18

Max Fuel Imbalances

Answer 18

Ground =
>= 60,500 lb = 400 lb
<60,500 lb = 1,000 lb