Fuel

通報

問題一覧

How many pumps are there in each fuel tank?

Two fuel pumps in each wing tank and two fuel pumps in the center tank

Where can you check the fuel quantity of each tank?

On ECAM lower display FUEL page only

With all fuel pumps switches ON, are wing tank pumps running while center tank is supplying?

Yes, wing tank pumps are always running

How many cells in each wing tank?

Two

Where is the vent surge tank located?

In the outer section of each wing

Which type of motor controls the fuel cross feed valve?

Double electric

The LP valves are controlled to off position by:

Engine master switches and fire pushbuttons

The normal tank filling order if preselected fuel load exceeds total capacity of the wing tanks (during refueling) is:

Center tank then wing tanks simultaneously

Amber FAULT light illuminates on tank pump pb when:

The delivery fuel pressure drops

Amber FAULT light illuminates on MODE SEL pushbutton when:

Center tank has more than 250 kg and any wing tank has less than 5,000 kg

The maximum fuel imbalance is (Take Off & Landing) at heavier tank full:

1,500 kg

Center tank fuel quantity indication boxed amber on ECAM fuel page means:

If both center tanks pumps are failed, or are switched OFF

FOB ( Fuel on Board) half-boxed amber on EW/D means:

The quantity shown is not fully usable

APU fuel is supplied by:

Either one

How is the IDG cooled?

By fuel from the high-pressure fuel line in the engine

Suction valves are:

Normally closed by pumps pressure

Where are the transfer valves located?

On each sealed rib of each wing tank

What is the purpose of the pressure relief sequence valves?

When all pumps are running, center pumps will deliver fuel preferentially

In normal operation, each engine is supplied by:

Two wing tank pumps and one center tank pump

Is the gravity feeding from center tank possible:

The maximum refueling pressure is:

50 psi (3.5 bars)

If open, when will the transfer valves close again?

Transfer valves close automatically at the next refueling operation

For what purpose is fuel used by electrical systems?

To cool the IDG oil

With slats extended, the center tank pumps run on ground:

Yes, after engine start for 2 mins.

What does the MODE SEL pb control:

Center tank pumps only

When the center tank is empty (MODE SEL at AUTO), center tank pumps:

Stop automatically 5 min. after LO level is reached in center tank

What happens to the IDG cooling fuel when the outer cells are full:

Fuel overflows into the inner cell through a spill pipe

What happens to the IDG cooling fuel when the wing tank is full:

The system select CTR TK pumps off. WING TK pumps feed approx. 500 kg, then CTR TK pumps run again

Why has a 2% additional space been provided in each fuel tank?

For fuel expansion without spillage into the vent surge tank

During take off, center tank fuel is:

Not supplied while slats are extended

With fuel in all tanks, in flight, fuel is used:

From the center tank, then from the inner cells to predetermined level, then outer cell fuel combines with inner cell fuel

In normal operation the cross feed valve is:

Closed for the take off

Are the engines still supplied in case of fuel filter CLOG:

Yes, fuel bypassing the fuel filter (bypass valve)

What is the maximum total fuel capacity?

19,004 kg

How many channels is/are used in the Fuel Quantity Indications System?

Where is the vent surge tank located?

Outboard of each wing tank

What are the minimum fuel quantity for the take off and maximum fuel quantity imbalance (heavier tank full) for take off or landing?

1500 kg - 1500 kg

What is the refueling time at nominal pressure (approx):

Either (20 mins for all tanks) or (17 mins for wing tanks)

In case of single engine operation:

Cross feed valve must be kept open

The fuel return valve is controlled by:

FADEC

What does the FAULT light illuminated amber in the wing tank pb indicate?

Delivery pressure drops

The engine low pressure (LP) valve is closed by:

Engine fire pb or the engine MASTER SW

On the crossfeed pb, what is the meaning of the "ON" white light?

The valve opens

At which fuel quantity is the low level "LO LVL" warning triggered on the ECAM?

Below 750 kg (1650 lb)

How can you check that fuel quantity (FQI) is in degraded mode?

FQ indication is dashed amber across the two last digits on the upper ECAM and ECAM fuel page must be called to check which tank is affected

When passing FL 200 gravity feeding occurs, what is the maximum flight level:

150 (FL 100 if jet B)

What is the purpose of the capacitance probes?

Both are correct

When the wing tank pb is set OFF, the FAULT light is:

Inhibited

Where is the fuel remaining in the surge tank scavenged?

Outer cell

How many engine fuel pumps are installed on an Airbus 320?

What could cause the center tank indication to become boxed amber

Both center tank pumps are failed, or are switched OFF

What is the purpose of the Fuel Recirculation System?

Ensures the IDG cooling

When will fuel automatically transfer from the outer to the inner wing tanks?

When any inner tank fuel reaches 750 kg

When is the LO LVL warning displayed on the ECAM?

When the fuel quantity in one wing tank goes below 750 kg

What source supplies hot air for Engine Anti Ice?

An independent air bleed from the high pressure compressor protects each engine nacelle from ice

Is it possible to select wing anti ice on ground?

Yes, the wing anti icing control valves open for 30 sec only (test sequence)

Which surfaces are protected with hot air?

Three outboard leading-edge slats of each wing and engine air intakes

How many Probe Heat Computers (PHCs) are installed on an A320?

The normal tank filling order is:

Wing tanks then center tank

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