FUEL SYSTEMS M11.10 Flashcards
What is the flash point of JET A1 fuel?
+38°C
What is meant by the term
“Integral tank”?
The tank is part of the structure of the wing
What is the purpose of a knit aluminium gasket on a fuel tank access panel?
To provide electrical bonding to the access panel
What is the maximum refuel pressure allowed when carrying out a pressure refuel?
50psi
What is the purpose of the trim tank?
To reduce drag and increase fuel economy
Which parameter is measured by fuel quantity probes used for tank gauges?
Capacitance
What does it look like if water is suspended in fuel?
The water gives the fuel a milky appearance
Which mode(s) of pressure refuelling can be carried out from the flight deck?
Automatic ONLY
Which fuel type is commonly used on commercial aircraft in Europe?
JET A1
During an override refuel of a particular tank the over-ride plunger of the solenoid control fuel valve is released…
…The valve will close if the solenoid is de-energised
What happens to the fuel that enters the fuel tank venting system and is not immediately drained back into its tank?
It goes into the vent surge tanks and then back in to the main tank when conditions allow
How is a fuel leak in an aircraft Centre tank indicated?
By a leak monitor connected to a drain valve
A fuel scavenge system uses jet pumps. When are these jet pumps operated?
Whenever the main booster pumps are running
A jettison system has anti-corona discharge nozzles where the fuel actually leaves the aircraft. What is the purpose of these nozzles?
To ensure that the fuel does not vapourise as it leaves the aircraft so that it drops…
Which fuel has a freezing point of -40°C?
JET A
