Fuel

Question 1

How many fuel pumps does the aircraft have and how many are gravity feeding?

Answer 1

6 pumps but only 4 have gravity feeding. The center tanks do not have gravity feeding.

2 fuel pumps (x 2) each inner tank and 2 fuel pumps for the center tank

Question 2

Where is the center tank located?

Answer 2

Under the fuselage

Question 3

Where are the inner and outer tanks located?

Answer 3

In the wings

Question 4

Max total fuel allowed?

Answer 4

41,814 lbs

Question 5

Max center tank fuel?

Answer 5

14,274 lbs

Question 6

Max inner tanks fuel?

Answer 6

12,270 lbs x 2

Question 7

Max outer tanks fuel?

Answer 7

1,500 lbs x 2

Question 8

How is fuel transferred from the outer to the inner tanks?

Answer 8

Transfer valves

Question 9

When do the outer tanks start transfering to the inner tanks?

Answer 9

FOB at 6,300 lbs or 1,650 lbs each inner tanks + 3,000 lbs for both outer tanks.

Question 10

What do the Low Pressure Fuel valves for?

Answer 10

Transfer fuel from the fuel system to the engines. May be turned off when the engine master switch is turned off or when the Fire pb is pushed

Question 11

When will the Low Pressure Valve turn to inline green on the EWD?

Answer 11

At the start of the engine

Question 12

When do the Low Pressure Valves turn to crossline amber?

Answer 12

When the engines master switch are turned off or the Engine Fire pb is pushed

Question 13

When does the Gross Weight appear on the EWD?

Answer 13

After the start of one engine

Question 14

What will happen when the Slats are extended after engine start?

Answer 14

Inner tanks will now feed the engines for take off. Taking over the center tanks

Question 15

When do the center tank pumps start to feed the engines?

Answer 15

When slats are retracted

Question 16

Some fuel is diverted to cool what system?

Answer 16

The IDG or Integrated Drive Generator

Question 17

When do the fuel pumps on the ECAM page turn to amber?

Answer 17

When the pumps are manually shut off from the Fuel panel

Question 18

What does it mean when there is a dual amber line on the last two digits of the fuel quantity?

Answer 18

The Fuel Quantity Indicator is inacurate

Question 19

What do the vent surge tanks do?

Answer 19

Temporary storage during thermal expansion and aircraft movement

Question 20

What is the purpose of the crossbleed valve?

Answer 20

To correct a fuel imbalance or allow one engine to be fed by both sides

Question 21

Which pumps have no gravity feeding capability?

Answer 21

Center tank pumps

Question 22

What is the purpose of the fuel tank inerting system?

Answer 22

To reduce flammability inside the fuel tanks by introducing very low oygen

Question 23

When does the APU fuel pump operate?

Answer 23

When no other pump is running

Question 24

Why is the center tank consumed first?

Answer 24

To avoid wing bending, light wings, heavy fuselage

Question 25

How does the fuel recirculation system work?

Answer 25

Part of the fuel is taken to cool the IDG, then the fuel travels through the outer tanks and are spilled into the inner tanks. When the wings are full, the center tanks stop. When the wings are below the full level, the center tanks operate again