FUEL

Question 1

The maximum allowed random lateral fuel imbalance between tanks 1 and 2 is_____

Answer 1

• 1000 lbs.

Question 2

Normally, the fuel crossfeed valve is in what position?

Answer 2

• closed

Question 3

While on the ground, center tank fuel pump switches must not be positioned ON unless the center tank fuel
quantity exceeds ________ pounds.

Answer 3

• 1000

Question 4

You must not position the center tank fuel pump switches to ON unless __________.

Answer 4

• personnel are available on the flight deck to monitor low-pressure lights

Question 5

To ensure center tank fuel is used first, the center tank pumps produce _______ pressure than the main tank
pumps.

Answer 5

• higher

Question 6

In the event normal electrical fuel pump operation is not available, the engine driven fuel pumps

Answer 6

• will provide suction feed

Question 7

________________ closes whenever their respective engine fire warning switch is pulled or engine start lever
is placed to CUTOFF.

Answer 7

• Both the spar fuel shutoff valve and the engine fuel shutoff valve

Question 8

Fuel for the APU is normally supplied from the ______ fuel manifold when AC fuel pumps are operating.

Answer 8

• LEFT

Question 9

When the ENGINE VALVE CLOSED light is extinguished, this indicates the related valve is ___________.

Answer 9

• OPEN

Question 10

You know the spar valve is closed with an illuminated (blue) _________ SPAR VALVE CLOSED light.

Answer 10

• dim

Question 11

An illuminated bright blue crossfeed VALVE OPEN light is indicating ____________.”

Answer 11

• the crossfeed valve is in transit
• the crossfeed valves position and CROSSFEED selector disagree

Question 12

An amber illuminated FILTER BYPASS light is indicating ____________.

Answer 12

• an impending fuel filter bypass

Question 13

The quantity indication on the fuel system calculates _________ fuel quantity in each tank.

Answer 13

• the useable

Question 14

An amber illuminated Fuel (LOW) indication will display when __________.

Answer 14

• the fuel quantity is less than 2000 lbs. in the related main tank

Question 15

An amber displayed fuel configuration (CONFIG) alert is indicating ____________.

Answer 15

either engine running and both center fuel pump switches are positioned OFF, and center fuel tank
quantity is greater than 1600 lbs

Question 16

An amber illuminated Fuel Imbalance (IMBAL) Indication is displayed when main tanks differ by more than
____________ and will be displayed until imbalance is reduced to _______.

Answer 16

• 1000 lbs; 200 lbs