Oral: Fuel Questions Flashcards

Know

1
Q

How many fuel tanks does the airplane have?

A

•2 integral tanks

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2
Q

Where is fuel tank temperature taken?

A

•Left tank

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3
Q

What types of fuel pumps are in each wing?

A
  • Primary ejector pump
  • ACMP
  • DCMP (right tank)
  • 3 scavenge ejector pumps
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4
Q

What is the Primary ejector pump?

A
  • Venturi pump with no moving parts and no electrical power used by the respective engine
  • Powered by motive flow
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5
Q

What is the purpose of the ACMP?

A
  • Back-up pump in case of primary ejector pump failure
  • Engine start
  • Crossfeed operations
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6
Q

What is the purpose of the DCMP?

A

•Used for APU or engine start if AC power or the ACMP is not available

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7
Q

What is the purpose of the scavenge pumps?

A

•Maintains fuel level in the collector box

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8
Q

What pump(s) is used once an engine is started?

A

•Primary (main) ejector pump

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9
Q

What is the purpose of the collector box?

A

•Keeps the fuel pumps submergedEnsures constant fuel flow to the respective engine

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10
Q

What is the surge/vent tank?

A
  • Collects fuel during wing-down maneuvers and returns it to the main tanks once the wings are level
  • Equalizes tank pressure with atmosphere in flight and during refueling
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11
Q

Can fuel be transferred from tank-to-tank or be dumped overboard?

A

No

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12
Q

What happens when the crossfeed switch is selected to LOW 1?

A
  • Crossfeed valve is opened

* Commands the ACMP 2 to ‘ON’ to provide fuel from the right tank to both engines

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13
Q

What is theonly way to close the engine fuel SOV?

A

Pull the associated engine fire extinguishing handle

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14
Q

When will the FUEL 1(2) LO LEVEL EICAS be presented?

A

•660 lb. of fuel remaining in the associated tank

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