Which of the following would cause the fault light to illuminate on the MODE SEL push button?
Fuel is being burned out of sequence.
Crossfeed push button is ON.
Center tank pumps do not stop after slat extension.
Center tank pumps do not stop 5 min after center tank low level reached.
The fuel tanks are emptied in the following sequence:1) inner tanks, 2) center tank, 3) outer tanks, 4) trim tank.
The message CTR TK FEEDG appears in the MEMO. What does this mean?
The center tank fuel mode selector is OFF.
The center tank pumps are OFF.
At least one center tank pump is energized.
A reminder to switch the center tank pumps OFF.
From which tanks will fuel gravity feed?
Outer cell of the wing tanks, inner cell of the wing tanks, and/or center tank.
Inner cell of the wing tanks, and center tank.
Outer cell of the wing tanks, and inner cell of the wing tanks.
The center tank only.
Center tank pumps do not stop 5 min after center tank low level reached.
Yes, only on the refueling panel.
It is not possible to determine their position
Only on the ECAM Fuel page.
During normal operations when should the fuel transfer valves open?
When a low level is sensed in the center tank.
When a low level is sensed in either outer wing cell.
When low level is sensed in either inner wing cell.
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.
A disagreement betwen fuel measured and fuel entered on the MCDU has been detected.
Not all the fuel aboard is useable.
The APU fuel system:
Uses it's own dedicated DC powered fuel pump.
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.
With fuel in the center tank the CTR TK MODE SEL push button selected to AUTO and CTR TK PUMP push buttons ON (lights out), which of the following conditions cause the center tank fuel pumps to stop?
Extension of the slats (after completion of the short test cycle).
Anytime the slats are extended or an overfill condition is detected in either wing inner cell
For a short test period after the first Engine Master Switch is selected 'ON' when the slats are extended.
The two center tank transfer pumps transfer fuel from the center tank to the _____ tanks.
The main fuel pump system has 2 main fuel pumps and 2 standby fuel pumps.
The main fuel pump system has 4 main fuel pumps and 2 standby fuel pumps.
After a refuel operation to maximum tank capacity, the fuel can expand by _____ without spillage.
Automatic transfer from the outer tanks to the inner tanks occurs when the center and trim tank have been emptied and either inner tank reaches _____ kg.
2,500 kg (5, 500 lbs)
3, 000 kg (6, 600 lbs)
3, 500 kg (7, 700 lbs)
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:
Will operate for a short period after the first engine MASTER switch is selected ON and while slats are retracted.
They will continue to run until the center tank is empty or slats are extended.
After engine start, center tank fuel pumps run for ______ minutes regardless of slat position.
The message OUTER TK FUEL XFRD appears in the MEMO. What does this mean?
It is a reminder to show that a transfer valve is open.
Fuel is transferring from the center tank to the inner tank.
It is a reminder to open the outer tank transfer valve.
Fuel is transferring from the inner tank to the outer tank.
Any tanks which require refueling are refueled one at a time.
The FAULT light for the T. TANK MODE pushbutton switch, on the fuel control panel, comes on amber when:
Excess aft CG has been detected.
FCMC is unable to carry out the forward transfer.
FUEL LO TEMP warning is triggered.
The wing fuel transfer valves are:
Manually controlled and open when the MODE SEL push button is selected to MAN.
Are electrically held closed.
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.
Automatic transfer of fuel from the outer tanks to the inner tanks is performed by gravity.
Why do the center tank pups stop automatically when then slats are extended for takeoff?
To keep the center of gravity as low as possible.
Dumping takeoff, the center tank fuel is pumped to the rear to trim aircraft
To ensure that the engines are fed from the wing tanks for takeoff (feeding segregation)
During takeoff, the center tank fuel is gravity fed only.
Automatic control of CG (center of gravity):
Begins when climbing through FL 255.
Is terminated when descending through FL 245.
Is terminated when FMGS time to destination is below 35 minutes.
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
No precautions are necessary.
The trim tank may be emptied out of normal sequence if required for CG (center of gravity) control.
After engine shutdown, what are your actions to close the fuel transfer valves?
You have to switch the inner tank pumps off.
You have to call maintenance to close the valves.
No action is required. The valves will close automatically during the next refuelling.
The Center tank transfer system controls the center of gravity of the aircraft.
The Trim tank transfer system controls the center of gravity of the aircraft.
When is the APU fed from the trim pipe?
When on ground, during first two minutes.
During trim tank refueling or aft or forward transfer.
Fuel transfer from center to inner tanks can be manually selected through the CTR TANK XFER pushbutton switch.
How has the fuel been transferred from the outer to the inner tanks?
By setting the MODE SEL pushbutton to MAN.
The transfer valve has been opened automatically by the low lever sensor in the center 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 main fuel pump system supplies fuel from the _____ tanks to the engines.
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.
The APU is fed from the engine 1 collector in the left inner tank through the APU FWD pump and the APU ISOL valve when:
On ground, after two minutes, when the trim tank is not refueled.
In flight above FL 200 when the trim tank is empty.
In flight below FL 190.
- On ground, after two minutes, when the trim tank is not refueled.- In flight below FL 255.- In flight above FL 255 when the trim tank is empty.
An overpressure protector is fitted in each wing surge tank, in the trim surge tank and between the center and right inner tank.
With all fuel pumps switches ON, are wing tank pumps running while center tank Is supplying?
Yes, wing tank pumps are always running.
No, only when center tank is empty.
No, because of center tank pump priority
FOB (fuel on board) indication boxed amber on ECAM fuel page means:
Both transfer valves in either wing tank fail to open when inner cell is at low level.
One transfer valve fails to open when inner cell is at low level
FQi (fuel quantity indicator) is degraded.
What happens to the IDG cooling fuel when the wing tank is full:
Fuel goes directly into the center tank.
The system selects CTR TK pump off, wing TK pump feed approx. 500 Kg, the CTR TK pump run again.
Fuel returns to the engine feeding Sine.
Fuel goes directly to the surge TK through the surge valve.
Suction feed to the engines is possible from:
The wing and tip tanks
The outer tank transfer valve only
The inner tanks only
The outer tanks only
Refueling is possible with either external power, the APU, or battery power.
There are _____ fuel pumps in each A330 wing tank collector box
During flight on battery power only, all fuel pumps are lost immediately except:
APU aft pump.
Left and right standby pumps.
APU fwd pump.
Both engine driven pumps.
With both engines failed and the EMER GEN powered by the RAT:
Only Main Left Fuel Pump 2 is powered.
Only the aft APU Pump is powered.
Only Main Left Fuel Pump I is powered.
Both Number 1 Left and Right Main Fuel Pumps are powered.
The engine low pressure fuel valves are controlled by:
Engine MASTER switch.
ENG FIRE pb.
Engine MASTER switch and ENG FIRE pb.
Once opened to transfer fuel, the outer transfer valves close:
Automatically at the next refueling operation.
When the pushbutton is selected to NORMAL on the overhead panel.
Automatically when the fuel transfer is complete.
After the outer tanks have been empty for 5 minutes.