Airbus A320 – Fuel - SmartCockpit - Airline training guides, Aviation, Operations, Safety

What precaution should you observe when gravity feeding fuel?

Operate the aircraft below 15,000 feet.

Use center tank first.

Open the crossfeed when above FL250

There is no special precaution needed.

Correct! Wrong!

After engine shutdown, what are the required actions to close the fuel transfer valves?

The flight crew will have to switch the inner tank pumps off.

The flight crew will have to call maintenance to close the valves.

No action is required. The valves will close automatically during the next refueling.

Correct! Wrong!

Which of the following would cause the FAULT light to illuminate on the MODE SEL push button?

Fuel is being burned out of sequence.

Center tank pumps do not stop after slat extension.

Crossfeed push button is ON.

Center tank pumps do not stop 5 minutes after center tank low level reached.

Correct! Wrong!

When fuel quantity in one wing tank goes below _____, the low-level sensor triggers the LO LVL warning on ECAM.

750 kg (1,650 lb).

500 kg (1,100 lb).

850 kg (1,874 lb).

650 kg (1,433 lb).

Correct! Wrong!

Fuel transfer from the outer compartment to the inner compartment of the wing tanks occurs when the inner compartment quantity decreases to:

450 kilograms (990 lb).

250 kilograms (550 lb).

850 kilograms (1870 lb).

750 kilograms (1650 lb).

Correct! Wrong!

The AC powered auxiliary fuel boost pump for the APU operates whenever the APU is operating and no other pump is on. it has an alternate power source on the AC Static Inverter bus for battery-only starts.

False.

True.

Correct! Wrong!

Why do the center tank pumps stop automatically when then slats are extended for takeoff?

To keep the center of gravity as low as possible.

To ensure that the engines are fed from the wing tanks for takeoff (feeding segregation)

Dumping takeoff, the center tank fuel is pumped to the rear to trim aircraft.

During takeoff, the center tank fuel is gravity fed only.

Correct! Wrong!

FUEL QUANTITY INDICATION (FQI) SYSTEM – There are three channels performing fuel computations: channel 3 activates automatically if a quantity difference is sensed between channel 1 and channel 2 or if any of the two channels fails.

True.

False.

Correct! Wrong!

There are two channels performing fuel computations: channel 2 activates automatically if channel 1 fails.

Fuel can be transferred from tank to tank:

Only on the ground.

In flight if the fuel X FEED push button is selected OPEN.

In flight if the fuel X FEED push button is selected OPEN and center tank MODE SEL push button is selected to MAN.

Fuel can never be transferred.

Correct! Wrong!

Some A318, A319, A320 and A321 aircraft are equipped with a Fuel Tank Inerting System. The aim of this system is to reduce the flammability in the fuel tanks that have a high flammability exposure. The Fuel Tank Inerting System:

Only needs to be installed in the inner and the center tanks.

Only needs to be installed for the center tank. All other tanks do not need Fuel Tank Inerting System installation.

is installed for all fuel tanks.

Only needs to be installed in the inner tanks.

Correct! Wrong!

To reduce the flammability in the center tank, the Fuel Tank Inerting System produces an oxygen-depleted air that goes in the center tank to replace the ambient air.

The fuel system circulates fuel to cool the Integrated Drive Generator (IDG).

True.

False.

Correct! Wrong!

A special fuel pump supplies fuel for APU startup when fuel feed pressure is low (due to loss of tank pumps or loss of normal AC electrical supply).

False.

True.

Correct! Wrong!

This pump normally runs off the AC ESS SHED, but runs off the AC STAT INV BUS if the AC ESS SHED fails.

With fuel in the center tank, the CTR TK MODE SEL push button selected to AUTO and the CTR TK PUMP push buttons ON (lights out), the center tank pumps:

All statements are correct.

Will operate for a short period after the first engine MASTER switch is selected ON and while slats are retracted.

Will continue to run until the center tank is empty or slats are extended.

Correct! Wrong!

What does an amber line across the last two digits of the fuel quantity mean?

The fuel quantity indication is inaccurate.

A disagreement between fuel measured and fuel entered on the MCDU has been detected.

The fuel quality is not good and should be checked.

Not all the fuel aboard is useable.

Correct! Wrong!

With the center tank pump mode SEL switch in AUTO, the center tank pumps:

Run for 2 minutes after both engines are running.

All statements are correct.

Will not restart until slats are retracted in flight.

Continue to run until 5 minutes after the center tank is empty.

Correct! Wrong!

The wing fuel transfer valves are:

Automatically close if a low level is sensed in either main wing tank, they automatically close at the next fueling.

Open automatically at the start of refueling.

Manually controlled and open when the MODE SEL push button is selected to MAN.

Are electrically held closed.

Correct! Wrong!

The fuel quantity indication on ECAM for the outer cell is boxed amber if:

Outer cell fuel temperature is high.

Both transfer valves fail to open when inner cell is at low level.

One transfer valve fails to open.

Correct! Wrong!

The fuel system keeps fuel in the inner tanks for wing bending and flutter relief.

False.

True.

Correct! Wrong!

The fuel system keeps fuel in the outer tanks for wing bending and flutter relief.

The fuel crossfeed valve is controlled by 2 motors.

False.

True.

Correct! Wrong!

A crossfeed valve controlled by a double motor allows both engines to be fed from one side or one engine to be fed from both sides.

The APU fuel system:

Obtains fuel from either center tank pump.

Obtains fuel from the left fuel manifold via the left side fuel pumps or if needed, the APU fuel pump.

Obtains fuel from the left fuel manifold via the right side fuel pumps.

Uses its own dedicated DC powered fuel pump.

Correct! Wrong!

Fuel quantity indication - The center tank indication is boxed amber, if:

Both center tank pumps are failed, or are switched OFF.

Both center tank pumps are failed.

One or both center tank pumps are failed.

Correct! Wrong!

The Fuel Used indication on ECAM is reset:

Automatically at electric power up of the aircraft.

Manually by the flight crew.

Automatically 15 minutes after the last engine is stopped.

Automatically at engine start on the ground.

Correct! Wrong!

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

The transfer valve has been opened automatically by the low lever sensor in the center tanks.

The transfer valve has been opened automatically by the low level sensor in the inner tank.

By setting the MODE SEL pushbutton to MAN.

By setting the MODE SEL pb to AUTO.

Correct! Wrong!

Refueling time at normal pump pressure is _ for the wing tanks and _ for all tanks.

15 minutes and 25 minutes.

15 minutes and 20 minutes.

17 minutes and 20 minutes.

25 minutes and 30 minutes.

Correct! Wrong!

During normal operations when should the fuel transfer valves open?

When low level is sensed in either inner wing cell.

When a low level is sensed in either outer wing cell.

When a low level is sensed in the center tank.

Correct! Wrong!

From which tanks will fuel gravity feed?

Outer cell of the wing tanks, and inner cell of the wing tanks.

Inner cell of the wing tanks, and center tank.

Outer cell of the wing tanks, inner cell of the wing tanks, and/or center tank.

The center tank only.

Correct! Wrong!

After engine start, center tank fuel pumps run for _____ minutes regardless of slat position.

5 minutes.

3 minutes.

2 minutes.

1 minute.

Correct! Wrong!

What indication will you see on the overhead fuel panel if the center tank has more than 250 kilograms (550 lb) of fuel and the left or right wing tank have less than 5,000 kilograms (11,000 lb).

Auto feed fault.

Mode select fault.

Fuel imbalance.

Fuel - Auto feed fault.

Correct! Wrong!

An amber line appears across the last two digits of the ECAM FOB indication when:

The fuel quantity is unreliable.

The center tank pumps have failed.

The center tank pumps are switched off.

Correct! Wrong!

Refueling is possible if the aircraft batteries are the only source of power.

False.

True.

Correct! Wrong!

The message CTR TK FEEDG appears in the MEMO. What does this mean?

At least one center tank pump is energized.

A reminder to switch the center tank pumps OFF.

The center tank fuel mode selector is OFF.

The center tank pumps are OFF.

Correct! Wrong!

What is the minimum fuel quantity for takeoff?

1,500 kg (3, 307 lb).

1,200 kg (2,645 lb).

1,000 kg. (2,205 lb).

2,000 kg (4,409 lb).

Correct! Wrong!

The message OUTER TK FUEL XFRD appears in the MEMO. What does this mean?

Fuel is transferring from the inner tank to the outer tank.

Fuel is transferring from the center tank to the inner tank.

It is a reminder to open the outer tank transfer valve.

It is a reminder to show that a transfer valve is open in one wing tank.

Correct! Wrong!

The LO LVL warning is totally independent from the displayed fuel quantity indication of the tank.

False.

True.

Correct! Wrong!

Airbus A320 – Fuel

Airbus A320 – Fuel

What precaution should you observe when gravity feeding fuel?

After engine shutdown, what are the required actions to close the fuel transfer valves?

Which of the following would cause the FAULT light to illuminate on the MODE SEL push button?

When fuel quantity in one wing tank goes below _____, the low-level sensor triggers the LO LVL warning on ECAM.

Fuel transfer from the outer compartment to the inner compartment of the wing tanks occurs when the inner compartment quantity decreases to:

The AC powered auxiliary fuel boost pump for the APU operates whenever the APU is operating and no other pump is on. it has an alternate power source on the AC Static Inverter bus for battery-only starts.

Why do the center tank pumps stop automatically when then slats are extended for takeoff?

FUEL QUANTITY INDICATION (FQI) SYSTEM – There are three channels performing fuel computations: channel 3 activates automatically if a quantity difference is sensed between channel 1 and channel 2 or if any of the two channels fails.

Fuel can be transferred from tank to tank:

Some A318, A319, A320 and A321 aircraft are equipped with a Fuel Tank Inerting System. The aim of this system is to reduce the flammability in the fuel tanks that have a high flammability exposure. The Fuel Tank Inerting System:

The fuel system circulates fuel to cool the Integrated Drive Generator (IDG).

A special fuel pump supplies fuel for APU startup when fuel feed pressure is low (due to loss of tank pumps or loss of normal AC electrical supply).

With fuel in the center tank, the CTR TK MODE SEL push button selected to AUTO and the CTR TK PUMP push buttons ON (lights out), the center tank pumps:

What does an amber line across the last two digits of the fuel quantity mean?

With the center tank pump mode SEL switch in AUTO, the center tank pumps:

The wing fuel transfer valves are:

The fuel quantity indication on ECAM for the outer cell is boxed amber if:

The fuel system keeps fuel in the inner tanks for wing bending and flutter relief.

The fuel crossfeed valve is controlled by 2 motors.

The APU fuel system:

Fuel quantity indication - The center tank indication is boxed amber, if:

The Fuel Used indication on ECAM is reset:

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

Refueling time at normal pump pressure is _____ for the wing tanks and _____ for all tanks.

During normal operations when should the fuel transfer valves open?

From which tanks will fuel gravity feed?

After engine start, center tank fuel pumps run for _____ minutes regardless of slat position.

What indication will you see on the overhead fuel panel if the center tank has more than 250 kilograms (550 lb) of fuel and the left or right wing tank have less than 5,000 kilograms (11,000 lb).

An amber line appears across the last two digits of the ECAM FOB indication when:

Refueling is possible if the aircraft batteries are the only source of power.

The message CTR TK FEEDG appears in the MEMO. What does this mean?

What is the minimum fuel quantity for takeoff?

The message OUTER TK FUEL XFRD appears in the MEMO. What does this mean?

The LO LVL warning is totally independent from the displayed fuel quantity indication of the tank.

Refueling time at normal pump pressure is _ for the wing tanks and _ for all tanks.