A320 TECHNICAL TRAINING MANUAL
© TRAINING & FLIGHT OPERA TIONS SUPPORT DIVISION
AIRBUS INDUSTRIE
28 – FUEL SYSTEM
1- What is the maximum total fuel capacity?
A - 41736 LBS (18964 KG)
B - 45920 LBS (20866 KG)
C - 52174 LBS (23707 KG)
2- Are wing tank pumps running while centre tank is supplying ?
A - Yes, wing tank pumps are always running
B - No, only when centre tank is empty .
C - no, because of center tank pump priority
3- The engine LP valve closes when :
A - the fuel booster pumps pressure decreases.
B - the engine is shut down or the ENG FIRE pushbutton is released out.
C - the engine fire detection system senses an engine fire.
4- When there is a low level in one inner cell :
A - one intercell transfer valve opens.
B - two transfer valves in one wing , open.
C - two transfer valves ,one in each wing ,open
5- What happens if you extend the slats in flight ,with fuel in centre tank , AUTO mode
selected ?
A - Centre tank pumps start .
B - Centre tank pumps stop.
C - Centre tank pumps stay as they are.
6- What happens on ground slats extended ,in AUTO MODE with fuel in the centre tank ,
and one minute after engines start?
A - Centre tank pumps are running.
B - Centre tank pumps are stopped.
C - The wing tank pumps are stopped.
7- What does the MODE SEL pushbutton control ?
A - Centre and wing tank pump.
B - Centre tank pumps only.
C - Wing tank pumps only.
8- When the centre tank is empty , in AUTO MODE , centre tank pumps:
A - Must be manually switched OFF.
B - Stop automatically and wing tank pumps start running.
C - Stop automatically.
9- The inner cell is refueled only when :
A - Centre tank is full.
B - Outer cell is full.
C - Outer cell is empty.
A320 TECHNICAL TRAINING MANUAL
© TRAINING & FLIGHT OPERA TIONS SUPPORT DIVISION
AIRBUS INDUSTRIE
28 – FUEL SYSTEM
10- Refuel valves maybe actuated :
A - Electrically only.
B - Manually only.
C - Electrically or manually
11- An excess pressure in the inner cell is relieved via an overpressure protector :
A - Into the outer cell
B - Into the Centre tank.
C - Overboard.
12-The Vent Float Valves :
A - Prevent fuel from entering the vent lines.
B - Allow fuel to drain from the vent lines.
C - Maintain the fuel tanks pressurized.
13- When does the FADEC close the fuel return valve?
A - If the IDG oil is too hot.
B - If there is a signal from the FLSCUs.
C - If there is no signal from the FLSCUs.
14- What happens if one channel of the FQIC fails ?
A - Half of the Quantity Indicating data is no longer available.
B - FQIS operates normally , only CFDSN report will indicate failure .
C -Fuel warning is triggered in addition to CFDS report.
15- What happens if a quantity probe (other than 13 or 14) fails ?
A - Corresponding tank qty display flashes .
B - Quantity indication disappears.
C - Quantity indication remains the same.
16- What happens when a low level is detected in the Inner cell ?
A - Automatically ,Transfer valves open to admit fuel to inner cell.
B - Automatically ,Transfer valves close to isolate the inner cell.
C - Restart of the pumps to suck fuel from the Outer cell.
17- What is the purpose of the IDG SHUT-OFF sensor ?
A - To stop the Centre Tank Pumps.
B - To restart cooling fuel recirculation.
C - To stop the cooling fuel recirculation.
18- In which cells are level sensors fitted ?
A - Inner and Outer cells.
B - Inner cells only.
C - Outer cells only.
19- What happens if a high level is detected ?
A - A warning is triggered : too much fuel.
B - All the refueling operations are stopped .
C - The corresponding REFUEL Valve closes.