Fuel

Question 1

757/767: According to the graphic, the fuel configuration FUEL CONFIG light is illuminated. Which statement provides a possible cause for its illumination?

Answer 1

The center tank contains more than 1200 pounds and the center fuel pump switches are OFF

Question 2

767: The fuel temperature (TEMP) indication displays the temperature of fuel in the:

Answer 2

Left main tank

Question 3

767: The fuel jettison system allows jettison from the

Answer 3

Center tank

Question 4

757/767: Which statement provides a situation that would cause the FUEL CONFIG light to illuminate

Answer 4

The total usable fuel in the left or right main tank drops below approximately 2200 pounds

Question 5

757/767: Fuel is normally supplied to the APU from the left main fuel tank. While the APU is running, fuel is pumped by the:

Answer 5

Left forward fuel pump

Question 6

763: Positioning the FUEL JETTISON selector to ON automatically ___ in order to reduce electrical demand.

Answer 6

Inhibits L-3 and R-3 window heat and configures equipment cooling to the override mode

Question 7

757: The fuel temperature (TEMP) indication displays the temperature of fuel in the:

Answer 7

Right main tank

Question 8

757: When fuel quantity in the left and right main tanks differ by ___ pounds the fuel config light illuminates and the corresponding EICAS advisory message is displayed.

Answer 8

1800

Question 9

757/767: According to the graphic, if the APU was not running, would these indications be normal?

Answer 9

No, the L FWD fuel pump PRESS light should be illuminated

Question 10

757/767: When fuel quantity in the left and right main tanks differ by ___ the FUEL CONFIG light illuminates and the corresponding EICAS advisory message is displayed.

Answer 10

1800 Ibs (757) and 2000+/-500 Ibs (767)

Question 11

757/767: According to the graphic, all six fuel pumps are operating, therefore the ___ provide fuel to the engines.

Answer 11

Center tank

Question 12

757: To reduce electrical loads, the center tank pumps are normally inhibited in flight or on the ground when:

Answer 12

The associated N3 is less than 50% RPM

Question 13

67: To reduce electrical loads, the center tank pumps are normally inhibited in flight or on the ground when:

Answer 13

The associated N2 is less than 50% RPM

Question 14

757/767: When center tank fuel is depleted, this will be indicated by:

Answer 14

EICAS advisory messages CT L FUEL PUMP and CT R FUEL PUMP

Question 15

767 with ____, scavenge of remaining center tank fuel begins when the main tanks are approximately half full

Answer 15

Center tank pumps off

Question 16

757: With the center tank pumps off, remaining center tank fuel is autoratically scavenged by a fuel scavenge ejector pump. A valve allows fuel to be discharged into the ___ when that tank is
less than 50% full.

Answer 16

Left main tank

Question 17

767: Two dual pump units provide a high capacity jettison rate of approximately ___ pounds per minute

Answer 17

2600

Question 18

757/767: A fuel crossfeed VALVE light illuminates and the EICAS advisory message FWD FUEL X-FEED or AFT FUEL X-FEED displays if:

Answer 18

The fuel crossfeed valve is not in the commanded position

Question 19

757/767: The nitrogen generation system (NGS) converts bleed air to nitrogen-enriched air (NEA during all phases of flight. The NEA is delivered to:

Answer 19

The center fuel tank to reduce flammability of the tank

Question 20

767: When fuel quantity in the left and right main tanks differ by 2000 pounds (plus or minus 500 pounds) the ___ light illuminates and the corresponding EICAS advisory message is displayed.

Answer 20

FUEL CONFIG

Question 21

757/767: Crossfeed valves isolate the left fuel manifold from the right. These valves are normally closed, providing fuel feed from tank to engine. The valve(s) are opened:

Answer 21

Any time it becomes necessary to feed an engine from an opposite fuel tank

Question 22

757/767: Fuel is contained in a center tank and left and right main tanks. Additionally, located in each wing tip are surge tanks. Fuel from each surge tank is drained into:

Answer 22

The associated main tank