Fuel Flashcards

1
Q

Why will center tank fuel be used before the main tank fuel will all the fuel pumps operating?

A

Center tank fuel pumps have approximately twice the pump output PX of the main pumps

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2
Q

When will the Center Tank Pumps operate?

A

When the respective engine is above approximately 50% N3

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3
Q

What is the meaning of an illuminated FUEL CONFIG light?

A

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

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4
Q

What does a fuel pump PRESS light indicate?

A

Low pump output pressure

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5
Q

What is the purpose of the Crossfeed Valve?

A

To allow any fuel pump to supply fuel to either engine

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6
Q

What does an illuminated Crossfeed VALVE light indicate?

A

Valve is not in the selected position

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7
Q

Fuel Balancing may not be done in flight: T/F

A

False

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8
Q

What is the approximate total fuel capacity?

A

Left and Right main: 14,500# each

Center: 46,000#

Total: 75,000#

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9
Q

With no AC power available, what supplies fuel to operate the APU?

A

The APU is fed by a DC pump in the left main tank

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10
Q

Where is Fuel Temperature sensed?

A

Right Main Tank

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