Airbus A220 – Fuel - SmartCockpit - Airline training guides, Aviation, Operations, Safety

On the Fuel synoptic page, the FUEL USED quantity indicates the amount of fuel used since the last flight. The FUEL USED quantity is reset to zero when:

Either engine is started or when AC power is removed from the aircraft.

Either engine is started or when AC and DC power are removed from the aircraft.

Either engine is started or when DC power is removed from the aircraft.

Correct! Wrong!

When the left engine is not in operation, the APU Electronic Control Unit (ECU) activates the left AC boost pump if:

Both AC boost pump switches are at AUTO.

Both AC boost pump switches are at AUTO and the aircraft is on ground.

Both AC boost pump switches are at AUTO and the external AC is available.

Correct! Wrong!

Fuel tank ventilation - The fuel vent system maintains the air pressure inside the fuel tanks within the structural design requirements. It provides an airflow path between the fuel tanks and the atmosphere in all operating conditions. Each fuel tank is vented to a wing surge tank through a dedicated tank vent system.

True.

False.

Correct! Wrong!

The Flight Management System (FMS) monitors the calculated fuel quantity and the FQC monitors the measured fuel quantity. The L FUEL LO QTY or R FUEL LO QTY caution message is displayed on the EICAS page when the fuel quantity is less than _____.

476.2 kg (1050 lb).

442.2 kg (975 lb).

408.2 kg (900 lb).

Correct! Wrong!

What is the true statement?

The left wing tank is vented into the left surge tank. The right wing tank is vented into the right surge tank.

The center tank and left wing tank are vented into the left surge tank. The right wing tank is vented into the right surge tank.

The left wing tank is vented into the left surge tank. The right wing tank is vented into center tank and the right surge tank.

Correct! Wrong!

The virtual refuel preselect panel is at the bottom of the FUEL synoptic page. It enables the flight crew to select the amount of required fuel to be loaded from the FUEL synoptic page. The FUEL synoptic page must remain displayed during the refueling operation after the CKPT function is selected and/or the requested of fuel quantity is entered. If the FUEL synoptic page is removed from any MFW:

The refueling procedure will stop immediately.

The quantity of fuel will default to 0 and the refuel procedure will stop automatically.

The refueling procedure will stop after 60 seconds unless the FUEL synoptic page is displayed again.

Correct! Wrong!

Fuel inerting system uses Nitrogen-Enriched Air (NEA) to reduce the risk of fuel fumes igniting in the fuel tanks.

False.

True.

Correct! Wrong!

The Fuel Tank Inerting System (FTIS) generates Nitrogen-Enriched Air (NEA) and distributes it into the air space in the fuel tanks to provide non-flammable air in the tanks.

For refueling, the refuel shutoff valves open to supply fuel to each tank. For defueling, the transfer/defuel valve connects the engine crossfeed manifold to the refuel manifold so that fuel can be pumped out of the collector tanks.

False.

True.

Correct! Wrong!

FUEL panel - L BOOST PUMP and R BOOST PUMP switches have 3 positions. In 'AUTO', the AC boost pumps start automatically when either:

Low fuel pressure is sensed, or fuel imbalance is sensed, or Auxiliary Power Unit (APU) is configured for start.

Auxiliary Power Unit (APU) is configured for start.

Low/high fuel pressure is sensed, or fuel imbalance is sensed.

Correct! Wrong!

FUEL panel - The 'MAN XFR' switch has four positions. When selected to 'R', the fuel flow is initiated from the right wing to the left wing.

True.

False.

Correct! Wrong!

When selected to 'R', the fuel flow is initiated from the left wing to the right wing.

A collector tank is installed in _____ to ensure a constant supply of fuel to each engine and Auxiliary Power Unit (APU) at all aircraft attitudes.

All tanks.

Each wing tank.

The center tank.

Correct! Wrong!

Fuel Tank Inerting System (FTIS) - The flight crew has no control of or indications from the system except for the advisory message 'FUEL INERTING FAULT' if the system fails.

True.

False.

Correct! Wrong!

The minimum fuel quantity for go-around is _____ per wing (with the airplane level) and at a maximum airplane climb attitude of 10 degrees nose up.

442 kg (975 lb).

500 kg (1102 lb).

325 kg (717 lb).

Correct! Wrong!

The Fuel Quantity Computer (FQC) has _____. Each channel receives independent data from all three tanks.

Two channels. Channel 1 is the primary and Channel 2 serves as a backup.

Four channels. Channels 1 and 3 are the primary and channels 2 and 4 serve as backup.

Three channels. Channels 1 and 2 are the primary and work in parallel. Channel 3 serves as a backup.

Correct! Wrong!

The APU receives fuel through the left engine feed line from:

Either the left engine main fuel ejector pump, or the left or right DC fuel pump.

Either the left engine main fuel ejector pump, or the left or right AC boost pump.

Either the left engine main fuel ejector pump, or the left or right AC boost pump, or suction-feed if AC power is not available and the left engine is not in operation.

Correct! Wrong!

The left and right surge tanks serve as ventilation space. They:

Do not store fuel but they collect excess fuel from the vent system and return it to the respective wing tank through a flapper check valve.

Store fuel and they also collect excess fuel from the vent system and return it to the respective tanks through a flapper check valve.

Correct! Wrong!

Fuel for the APU goes through the APU fuel shutoff valve. The APU Electronic Control Unit (ECU) opens the valve during the APU start sequence. The APU fuel shutoff valve can be closed when:

The APU switch on the APU panel is selected to OFF, the guarded APU FIRE switch on the engine and APU fire panel is pressed, or automatically by the ECU, when serious faults occur on ground or in flight.

The APU switch on the APU panel is selected to OFF, the guarded APU FIRE switch on the engine and APU fire panel is pressed.

The APU switch on the APU panel is selected to OFF, the guarded APU FIRE switch on the engine and APU fire panel is pressed, or automatically by the ECU, when serious faults occur on ground.

Correct! Wrong!

When operating on ground the left engine must be started first if either wing tank fuel quantity is:

Greater than 2830 kg (6225 lb).

Lower than 2830 kg (6625 lb).

Correct! Wrong!

Fuel from the center tank is automatically transferred to the wing tanks by transfer ejector pumps. When the fuel quantity of a wing tank is less than _____ of its maximum usable fuel volume, a float valve opens so that the center tank transfer ejector can move fuel from the center tank into the wing tanks.

90%.

85.6%.

95.2%.

Correct! Wrong!

The virtual refuel preselect panel is at the bottom of the FUEL synoptic page. It enables the flight crew to select the amount of required fuel to be loaded from the FUEL synoptic page. The virtual refuel preselect panel can only be displayed when:

The aircraft is on the ground and engines are off.

The aircraft is on the ground.

The aircraft is on the ground, engines are off and both DC and AC power is available.

Correct! Wrong!

Defueling can be done in AUTO mode or MANUAL mode on the REFUEL / DEFUEL PANEL.

True.

False.

Correct! Wrong!

Refueling can be done in AUTO mode or MANUAL mode. Defueling can only be done in the MANUAL setting on the REFUEL / DEFUEL PANEL.

Takeoff with bulk fuel temperature indications below _____ is prohibited.

-42 deg.C (-44 deg.F)

-37 deg.C (-35 deg.F)

-40 deg.C (-40 deg.F)

Correct! Wrong!

In MANUAL or AUTO mode, the refuel shutoff valves close when:

The PRESEL switch on the REFUEL / DEFUEL PANEL is selected OFF.

The fuel tanks are full.

The appropriate amount of fuel is correctly distributed.

Correct! Wrong!

FUEL panel - The 'MAN XFR' switch has four positions. When selected to 'OFF', the fuel imbalance correction is in automatic mode:

Transfer/defuel valve close, refuel valve close, left and/or right AC boost pumps turn off (if selected to AUTO).

Transfer/defuel valve close, crossfeed valves close, refuel valve close, left and/or right AC boost pumps turn off (if selected to AUTO).

Refuel valves close.

Correct! Wrong!

Airbus A220 – Fuel