Fuel

Question 1

What does L/R Pump Pressure (PRESS) light mean

Answer 1

Pump output pressure is low

Question 2

Center Pump (PRESS) light illuminates when

Answer 2

Fuel pumps running and pressure output low
Or
Associated N2 below 50% with pumps on

Question 3

When is the Center (PRESS) light inhibited

Answer 3

C tank fuel pump switch selected off

Question 4

Cross-feed VALVE light illuminates when

Answer 4

Valve isn’t in the commanded position

Question 5

When does the FUEL CONFIG light illuminate

Answer 5

Fuel quantity less than 2200lbs in each wing

+1200lbs in the center tank with fuel pumps OFF

Imbalance of 2000lbs +/-500

Question 6

Where do we get fuel tank temperature from

Answer 6

Left Main fuel tank

Question 7

What does the fault light on the Fuel Jettison panel mean

Answer 7

Jettison pumps and/or transfer valves disagree with commanded position

Question 8

What are the 2 ways to check fuel quantity

Answer 8

Total fuel quantity indicator

FMC

Question 9

Can a single fuel pump provide sufficient fuel pressure to operate engine

Answer 9

Yes

Question 10

When do center tank pumps become inhibited

Why

Answer 10

When N2 is less than 50%

To reduce electrical loads on a/c

Question 11

When do the scavenge pumps come on

Answer 11

When center pumps are off/fail and wing tanks are less than half