Fuel Flashcards
Why will center tank fuel be used before the main tank fuel will all the fuel pumps operating?
Center tank fuel pumps have approximately twice the pump output PX of the main pumps
When will the Center Tank Pumps operate?
When the respective engine is above approximately 50% N3
What is the meaning of an illuminated FUEL CONFIG light?
All of the above
Center tank fuel pump switches off with more than 1200# in the center tank
Fuel imbalance of 1800# between the left and right main tank
Less than 2200# in either main tank
What does a fuel pump PRESS light indicate?
Low pump output pressure
What is the purpose of the Crossfeed Valve?
To allow any fuel pump to supply fuel to either engine
What does an illuminated Crossfeed VALVE light indicate?
Valve is not in the selected position
Fuel Balancing may not be done in flight: T/F
False
What is the approximate total fuel capacity?
Left and Right main: 14,500# each
Center: 46,000#
Total: 75,000#
With no AC power available, what supplies fuel to operate the APU?
The APU is fed by a DC pump in the left main tank
Where is Fuel Temperature sensed?
Right Main Tank
