Fuel

Question 1

The Fuel LOW (amber) Alert is displayed when the respective Main Tank fuel quantity is less than ____ for greater than _____?

Answer 1

2000 lbs
30 seconds

Question 2

Aside from a leak, what could cause a progressive fuel imbalance?

Answer 2

Cross feed Valve open, no Center Tank fuel feed, Main Tank Fuel Pumps operating within the normal pump output pressure tolerances.

Question 3

Opening the Crossfeed valve inflight, ____.

Answer 3

Allows fuel from a main tank, with operating fuel pumps, to provide fuel to both engines.

Question 4

IMBAL (amber) alert means the main tanks differ by more than_____?

Answer 4

1000 lbs

Question 5

The FUEL FLOW (amber) Alert is displayed when _____ on the Max.

Answer 5

When the difference between actual engine fuel flow rate and the FMS expected fuel flow rate exceeds the predetermined FMC threshold value for 5 continuous minutes.