Systems Flashcards
FUEL
Where are the transfer jet pumps located?
In the inboard wing
FUEL
Where is the main jet pump located?
In the collector tank
FUEL
What operates the jet pumps?
Motive flow pressure
FUEL
How many boost pumps are in each tank?
2
FUEL
What operates the boost pumps?
An electric motor
FUEL
What is the purpose of the transfer jet pumps?
To ensure there is always fuel in the collector tank
FUEL
What is the purpose of the main jet pump?
To supply pressure to the inlet of the engine driven pump
FUEL
What is the purpose of the boost pumps?
To act as a back up in case of motive flow pump failure and Crossfeeding and starting Engines/APU
FUEL
What is the loss of usable fuel in the affected tank if motive flow is not available to operate the ejector jet pumps?
12.15 gal
FUEL
When will the boost pump operate if the switch is in the AUTO position?
When the fuel Low Pressure light illuminates
FUEL
What will occur when the Crossfeed valve is opened?
The motive flow valves are closed
FUEL
What will occur when the fire handle is pulled?
The firewall fuel shutoff valve is closed
FUEL
During normal refueling, what must occur before the refueling valves will open?
The refueling vent valves must be opened
FUEL
Fuel from the previous shut down is drained into the EPA collector tank. How is the fuel moved from the EPA tank to the outboard tank during startup?
The HMU return valve is opened
FUEL
How many fuel quantity measuring sticks are there in each wing?
4