Airbus A320 - Fuel

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.

False.

True.

Correct! Wrong!

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

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

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.

To keep the center of gravity as low as possible.

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.

During normal operations when should the fuel transfer valves open?

When a low level is sensed in the center tank.

When low level is sensed in either inner wing cell.

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

Correct! Wrong!

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

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

Outer cell fuel temperature is high.

One transfer valve fails to open.

Correct! Wrong!

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

15 minutes and 20 minutes.

17 minutes and 20 minutes.

15 minutes and 25 minutes.

25 minutes and 30 minutes.

Correct! Wrong!

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

The fuel quantity indication is inaccurate.

The fuel quality is not good and should be checked.

Not all the fuel aboard is useable.

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

Correct! Wrong!

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

True.

False.

Correct! Wrong!

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

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.

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.

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

Correct! Wrong!

What is the minimum fuel quantity for takeoff?

1,200 kg (2,645 lb).

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

1,500 kg (3, 307 lb).

2,000 kg (4,409 lb).

Correct! Wrong!

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

The center tank pumps are switched off.

The fuel quantity is unreliable.

The center tank pumps have failed.

Correct! Wrong!

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

A reminder to switch the center tank pumps OFF.

The center tank fuel mode selector is OFF.

The center tank pumps are OFF.

At least one center tank pump is energized.

Correct! Wrong!

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

By setting the MODE SEL pb to AUTO.

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

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

By setting the MODE SEL pushbutton to MAN.

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!

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

2 minutes.

3 minutes.

1 minute.

5 minutes.

Correct! Wrong!

The APU fuel system:

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

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.

Uses its own dedicated DC powered fuel pump.

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.

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

Crossfeed push button is ON.

Correct! Wrong!

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.

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

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

Correct! Wrong!

Fuel can be transferred from tank to tank:

Fuel can never be transferred.

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

Only on the ground.

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

Correct! Wrong!

The Fuel Used indication on ECAM is reset:

Automatically at engine start on the ground.

Manually by the flight crew.

Automatically at electric power up of the aircraft.

Automatically 15 minutes after the last engine is stopped.

Correct! Wrong!

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

False.

True.

Correct! Wrong!

The wing fuel transfer valves are:

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

Open automatically at the start of refueling.

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

Are electrically held closed.

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 for the center tank. All other tanks do not need Fuel Tank Inerting System installation.

Only needs to be installed in the inner tanks.

is installed for all fuel tanks.

Only needs to be installed in the inner and the center 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!

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

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

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

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

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.

Fuel - Auto feed fault.

Fuel imbalance.

Mode select fault.

Correct! Wrong!

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

False.

True.

Correct! Wrong!

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

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

Will not restart until slats are retracted in flight.

Run for 2 minutes after both engines are running.

All statements are correct.

Correct! Wrong!

From which tanks will fuel gravity feed?

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

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

The center tank only.

Inner cell of the wing tanks, and center tank.

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).

750 kilograms (1650 lb).

850 kilograms (1870 lb).

Correct! Wrong!

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

500 kg (1,100 lb).

650 kg (1,433 lb).

750 kg (1,650 lb).

850 kg (1,874 lb).

Correct! Wrong!

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

Both center tank pumps are failed.

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

One or both center tank pumps are failed.

Correct! Wrong!

What precaution should you observe when gravity feeding fuel?

Operate the aircraft below 15,000 feet.

Open the crossfeed when above FL250

There is no special precaution needed.

Use center tank first.

Correct! Wrong!

Airbus A320 – Fuel

Quiz

Airbus A320 - Fuel

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.

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

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).

During normal operations when should the fuel transfer valves open?

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

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

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

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

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

What is the minimum fuel quantity for takeoff?

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

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

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

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.

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

The APU fuel system:

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

The fuel crossfeed valve is controlled by 2 motors.

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:

Fuel can be transferred from tank to tank:

The Fuel Used indication on ECAM is reset:

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

The wing fuel transfer valves are:

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).

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

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).

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

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

From which tanks will fuel gravity feed?

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

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

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

What precaution should you observe when gravity feeding fuel?

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