Fuel Flashcards

1
Q

Fuel is availabe to the engines from _______

A

all three tanks

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2
Q

How does the APU draw fuel from a tank

A

APU w/AC power: left side of fuel manifold

APU w/out AC power: No 1 tank suction feed

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3
Q

Center tank pressures are slightly higher output and therefore consumed

A

first

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4
Q

Check valves in the fuel system ensure?

A

correct fuel flow between tank and engine

prevent inadvertent transfer of fuel between tanks

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5
Q

What do Dim blue, Dark Blue and extingushed mean for the ENG VALVE CLOSED and SPAR VALVE CLOSED ?

A

Dim blue: valve is closed
Extinguished: valve is open
Bright blue: valve is in transit or in disagreement with commanded position.

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6
Q

The crossfeed valve is _____operated.

A

DC operated

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7
Q

Fuel temperature in main tank # ____ is displayed in the overhead panel if AC power is available.

A

1

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8
Q

Fuel tank capacities:

A

: 8630
2: 8630
Center: 28,803
Total: 46,063

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9
Q

There are 2 ______ fuel pumps in each of the three tanks.

A

AC powered.

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10
Q

Fuel is normally pressure fed , but each engine can draw fuel from its corresponding main tank through a _______ line should both pumps fail.

A

suction fed. Suction feed is not possible from the center tank.

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11
Q

Engine fuel shutoff valves are ________controled valves

A

fuel actuated, solenoid controled

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12
Q

With more than ______ pounds of fuel in the center tank, the L and CTR FUEL PUMPS switches must be turned on.

A

1000

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13
Q

In climb or cruise, when a CTR tank LOW PRESSURE light illuminates, select the pump_____.

A

off

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14
Q

If an engine is operating on suction feed, dissolved air from the fuel is released as the airplane ______ and may collect and thrust deterioration and ______ may result.

A

climbs; flameout.

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15
Q

When will you get a CONFIG fuel alert?

A

Center tank fuel greater than 1600 lbs, both CTR FUEL PUMPS switches are OFF and either engine is running.
Some a/c will also display the message with both CTR FUEL PUMPS switches on, along with low output pressure.

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16
Q

If only one center tank FUEL PUMP PRESSURE light comes on in flight, the _______ selector should be opened to prevent a fuel imbalance.

A

CROSS FEED

17
Q

Always maintain fuel temperature at least ____above the fuel freezing point of the fuel being used.

A

3C. You may need to speed up, change altitude or deviate to warmer air masses.

18
Q

When does a fuel LOW indicator appear on the fuel gauge for main tanks?

A

less than 2000 lbs.

19
Q

In some aircraft, NEA is delivered to the _______ to reduce flammability.

A

center fuel tank

20
Q

Where is the NEA indicator panel?

A

right main wheel well.Operation is automatic and transparent to the crew.

21
Q

If NEA indicator shows inoperative, MEL will probably do what?

A

Allow the flight for dispatch.