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Airbus 320 > Fuel > Flashcards

Fuel Flashcards

1
Q

How many fuel tanks are there?

A

3

  • 1 Center tank
  • 2 Wing tanks (Outer & Inner on each side)
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2
Q

What are the tank capacities?

A

Center: 6.476kg
Wing outer: 691kg
Wing inner: 5.435kg
Wing total: 6.126kg

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3
Q

What is the total fuel capacity?

A

18.728kg

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4
Q

How many transfer valves in each tank?

A

2

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5
Q

When do the transfer valves open?

A

All 4 open when either inner tank <750kg

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6
Q

What happens with the transfer valves once opened?

A

Latched open. Will close again on next refuelling.

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7
Q

What happens to fuel in the vent surge tank?

A

Scavenge pumps move the fuel back to their respective wing tank.

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8
Q

How many main fuel pumps are installed?

A

6

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9
Q

What is the purpose of the pressure relief sequence valves in the wing tank pumps?

A

Ensure center tank will deliver fuel preferentially when all tank pumps are on.

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10
Q

How can the LP fuel valve be closed?

A
  • Engine master switch

- ENG FIRE pushbutton

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11
Q

Which pumps have suction valves?

A

Wing tank pumps only

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12
Q

When will the center pumps run with the mode selector in AUTO?

A
  • Will run for 2 minutes after engine start

- After 500kg of inner tank fuel has been used and the slats are retracted.

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13
Q

What is the purpose of the fuel recirculation system?

A

Some high-pressure fuel diverted to the IDG cooler and through return valve to outer tank.

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14
Q

When will the center pumps stop running with the mode selector in AUTO?

A

Will run for 5 minutes after center tank low level is sensed, then stop.

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15
Q

What is the approximate refuelling time?

A
  • 17 minutes for wing tanks

- 20 minutes for all tanks

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16
Q

When would the FOB indication be half-boxed?

A
  • Center tank pumps fail or are switched off

- Both transfer valves fail to open

17
Q

What is the minimum power source required for refuelling?

A

Battery power

18
Q

What is the normal tank filling order if upload exceeds wing tank capacity?

A

Wing tanks and center tank fill simultaneously

19
Q

What is the significance of a MODE SEL pushbutton FAULT light?

A

> 250kg in center tank, and

<5000kg in either wing tank

20
Q

What is the maximum fuelling pressure?

A

50 psi

Airbus 320 (15 decks)

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