Fuel

Question 1

How is fuel drained from the surge tank?

Answer 1

It will drain back to the main tank when the airplane is at a constant velocity and cruise pitch angle.

When fuel level is too high, fuel will drain out of the vent scoop

Question 2

How are the fuel tanks identified?

Answer 2

1-left wing
2-right wing
3-Center

Question 3

Fueling shutoff valves are ________ controlled and ____________ operated.

Answer 3

automatically opens when there is fuel pressure.

To manually stop refueling, set the refueling shut off valve to switch to closed position.

Question 4

Where are the main tank forward boost pumps located?

Answer 4

inboard rear spar fwd of the MLG door

can be accessed through the wheel wells

Question 5

All fuel tanks have fuel, all fuel pumps switches are on: Why does the fuel feed
the engines from the center tank?

Answer 5

Because Center tank pumps are High pressure. It supplies pressure before the main tanks

Question 6

Where is the APU fuel shutoff valve located?

Answer 6

center section rear spar

Question 6

How is the defuel valve operated?

Answer 6

By the HANDLE which is also a position indicator

Question 7

What is the purpose of the defuel valve?

Answer 7

connects the right engine fuel feed manifold with the defuel manifold. This permits removal of fuel from the fuel tanks

Question 8

What causes the center tank scavenge system to operate?

Answer 8

a fuel scavenge shut-off valve

Question 9

How would YOU function test the center tank scavenge system?

Answer 9

BITE test to the CDU

Question 10

The airplane is fully powered you open the refuel panel door, no lights, no power
to the panel. What might be wrong? How could you still refuel?

Answer 10

??????

Question 11

What are the two power sources for an engine spar valve?

Answer 11

Engine fuel spar valve battery

back up hot bus battery?

Question 12

Can you suction feed the engines from the center fuel tank?

Answer 12

No, engines can only suction feed on main tanks #1 and #2

Question 13

How is the APU DC pump turned on? (short answer, one word, starts with an A)

Answer 13

(Optional) If not fitted APU suction feeeds from #1 tank.

/when the main tank cannot supply fuel to the APU

Question 14

Describe the procedure to pressure defuel the #1 main fuel tank.

Answer 14

-connect nozzles

-move handle on the defuel valve

-turn on the pump on the tank that you want to defuel

-Open crossfeed valve

Question 15

Where is the FQPU located?

Answer 15

ceiling of the FWD cargo compartment, fwd of the cargo door

Question 16

How is fuel quantity BITE performed?

Answer 16

MCDU

Question 17

Where is the fueling station panel?

Answer 17

P15

Question 18

When does suction supply from main tank no. 1 and no. 2 occurs?

Answer 18

when all boost pumps in one tank are off and crossfeed valve are off

Question 19

Compensator (3) locaions

Answer 19

1 per tank, lowest part of tank.

compensates for density of the fuel

Question 20

refuelling panel?

Answer 20

R/H leading edge panel

Question 22

Apu line is made up of?

Answer 22

single piece rubber/kevlar line