FUEL SYSTEM

通報

問題一覧

APU fuel is supplied by:

Either one

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

Amber FAULT light illuminates on tank pump pb when:

The delivery fuel pressure drops

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

Yes, fuel bypassing the fuel filter (bypass valve)

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

Below 750 kg (1650 lb)

During take off, center tank fuel is:

Not supplied while slats are extended

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

The quantity shown is not fully usable

For what purpose is fuel used by electrical systems?

To cool the IDG oil

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

How many cells in each wing tank?

Two

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

How many pumps are there in each fuel tank?

Two fuel pumps in each wing tank

If open, when will the transfer valves close again?

Transfer valves close automatically at the next refueling operation

In case of single engine operation:

Cross feed valve must be kept open

In normal operation the cross feed valve is:

Closed for the take off

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:

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

The valve opens

Suction valves are:

Normally closed by pumps pressure

The LP valves are controlled to off position by:

Engine master switches and fire pushbuttons

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

Engine fire pb or the engine MASTER SW

The fuel return valve is controlled by:

FADEC

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

1,500 kg

The maximum refueling pressure is:

50 psi (3.5 bars)

The normal tank filling order is:

Wing tanks then center 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 does the FAULT light illuminated amber in the wing tank pb indicate?

Delivery pressure drops

What does the MODE SEL pb control:

Center tank pumps only

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

What is the maximum total fuel capacity?

19,004 kg

What is the purpose of the capacitance probes?

Both are correct

What is the purpose of the pressure relief sequence valves?

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

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

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

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

150 (FL 100 if jet B)

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

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

Inhibited

Where are the transfer valves located?

On each sealed rib of each wing tank

Where can you check the fuel quantity of each tank?

On ECAM lower display FUEL page only

Where is the fuel remaining in the surge tank scavenged?

Outer cell

Where is the vent surge tank located?

Outboard of each wing tank

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

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

For fuel expansion without spillage into the vent surge tank

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

Yes, wing tank pumps are always running

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

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

Yes, after engine start for 2 mins.

FOB (Fuel on Board) half-boxed amber on ECAM FUEL page means:

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

B777 - Part 8

B777 - Part 8

B777 - Part 3

B777 - Part 3

B777 - Part 6

B777 - Part 6

B777 - Part 4

B777 - Part 4

B777 - Part 1

B777 - Part 1

B777 - Part 7

B777 - Part 7

B777 - Part 9

Angelo Ortiz · 28問 · 3年前

B777 - Part 9

28問 • 3年前

B777 - Part 2

B777 - Part 2

B777 - Part 5

B777 - Part 5

Angelo Ortiz · 100問 · 2年前

AIA - VUL

AIA - VUL

100問 • 2年前

Underwriting

Angelo Ortiz · 66問 · 2年前

Underwriting

66問 • 2年前

Airplanes and Aerodynamics

Angelo Ortiz · 49問 · 2年前

Airplanes and Aerodynamics

49問 • 2年前

Airplane Instruments, Engines and Systems

Angelo Ortiz · 77問 · 2年前

Airplane Instruments, Engines and Systems

77問 • 2年前

Airport, ATC and Airspace

Angelo Ortiz · 88問 · 2年前

Airport, ATC and Airspace

88問 • 2年前

Angelo Ortiz · 100問 · 2年前

Federal Aviation Regulations - Part 1

Federal Aviation Regulations - Part 1

100問 • 2年前

Federal Aviation Regulations - Part 2

Angelo Ortiz · 89問 · 2年前

Federal Aviation Regulations - Part 2

89問 • 2年前

Airplane Weight and Balance

Angelo Ortiz · 10問 · 2年前

Airplane Weight and Balance

10問 • 2年前

Medical Factors and Decision Making

Angelo Ortiz · 25問 · 2年前

Medical Factors and Decision Making

25問 • 2年前

Weather and Services

Angelo Ortiz · 87問 · 2年前

Weather and Services

87問 • 2年前

Navigation

Angelo Ortiz · 30問 · 2年前

Navigation

30問 • 2年前