Fuel Systems

Question 1

Actual fuel temperature is displayed on _____
A. EICAS
B. FUEL synoptic
C. FMC PERF INIT page
D. Both A and B

Answer 1

D. Both A and B

Question 2

The DC powered fuel pump is located in the _____ tank.
• Left main
• Center
• Right main
• Lower center

Answer 2

• Left main

Question 3

The DC fuel pump operates automatically when:
• both AC fuel pumps in the left or right main tank fail.
• either engine fails in flight.
• the APU is started without AC power available.
• any time the APU is started.

Answer 3

• the APU is started without AC power available.

Question 4

The CDU message INSUFFICIENT FUEL indicates:
• Fuel at destination will be zero.
• Predicted fuel at destination will be less than entered reserves.
• Fuel quantity at destination will be critical.
• The fuel quantity system is inoperative.

Answer 4

• Predicted fuel at destination will be less than entered reserves.

Question 5

The expanded fuel quantity display appears when:
A. One or more fuel quantity indicators are inop.
B. The FUEL QTY LOW message is displayed.
C. the crossfeed valve is open.
D. All the above.

Answer 5

D. All the above.

Question 6

When all available fuel has been jettisoned there will be:
• 11,500 lbs total in both main tanks combined.
• 23,500 lbs in the left, center, and right main fuel tanks combined.
• 10,000 lbs in each main fuel tank.
• 8,700 lbs in each main fuel tank.

Answer 6

• 8,700 lbs in each main fuel tank.

Question 7

On the ground the fuel jettison system:
• Is inhibited.
• Will operate only when the engine starter generators are providing power.
• Is inhibited only when using external power.
• Will operate only if the APU is providing electrical power

Answer 7

• Is inhibited.

Question 8

A DC powered fuel pump located in the ___ tank provides fuel for APU start if AC power is not available.
• right main
• center
• left main
• left surge

Answer 8

• left main

Question 9

Exceedance of the fuel imbalance limits:
• Requires no logbook entry or aircraft inspection.
• Requires a logbook entry.
• Requires an aircraft inspection.
• Requires a log book entry only if the imbalance occurs during flight.

Answer 9

• Requires no logbook entry or aircraft inspection.

Question 10

The fuel balancing system is inhibited:
A. during defueling, refueling or ground transfer of fuel.
B. prior to engine start with the APU off.
C. on the ground and one or both engines are running.
D. All the above

Answer 10

D. All the above

Question 11

Placing the left fuel jettison NOZZLE switch to ON in-flight with the jettison system ARMED will:
A. open both main tank jettison valves.
B. open both center tank jettison isolation valves.
C. Cause a fuel imbalance.
D. A and B.

Answer 11

D. A and B.

Question 12

Placing the fuel jettison ARM switch to the ARMED position causes the Fuel To Remain indication to be displayed:
• On the EICAS fuel display only.
• On the Fuel synoptic only.
• On both the EICAS fuel display and FUEL synoptic.
• On the secondary EICAS display.

Answer 12

• On both the EICAS fuel display and FUEL synoptic.

Question 13

Fuel jettison time is displayed:
• On both the primary EICAS display and FUEL synoptic.
• On the primary EICAS display only.
• On the CDU PROGRESS page 2 of 3.
• On the FUEL synoptic only.

Answer 13

On the FUEL synoptic only.

Question 14

The center tank scavenge system will begin to transfer fuel from the center tank when:
• Either main tank quantity is below 35,000 lbs and both center tank pumps are off.
• Both main tank quantities are below 11,500 lbs.
• Both main tank quantities are below 29,000 lbs.
• Both main tank quantities are below 15,000 lbs.

Answer 14

• Either main tank quantity is below 35,000 lbs and both center tank pumps are off.

Question 15

When balancing fuel, what indication(s) appear when the main tank fuel is balanced?
• An EICAS message FUEL BALANCED will display.
• A solid amber pointer appears on the expanded display.
• The expanded display will immediately blank.
• A flashing FUEL BALANCED indication replaces the Fuel Quantity title on the expanded quantity display.

Answer 15

• A flashing FUEL BALANCED indication replaces the Fuel Quantity title on the expanded quantity display.

Question 16

The minimum fuel temperature is displayed on:
• The EICAS STATUS page
• On the EICAS primary display only.
• On the CDU PERF INIT page and the FUEL synoptic.
• The AUX display panel

Answer 16

• On the CDU PERF INIT page and the FUEL synoptic.

Question 17

On the ground or in flight certain fuel pumps may load shed when:
• Less than all engines or generators are operating.
• When only the R1 and R2 main busses are powered.
• When only the L1 and L2 main busses are powered.
• Only when electrical power is supplied by the APU generators.

Answer 17

• Less than all engines or generators are operating.

Question 18

If a center tank pump has low output pressure with low center tank quantity, the ____ EICAS message is displayed.
• FUEL PUMP CENTER
• USE WING FUEL
• FUEL LOW CENTER
• FUEL QTY LOW

Answer 18

• FUEL LOW CENTER

Question 19

The minimum fuel temperature is entered on the:

• CDU PROGRESS page 2 of 2.
• MFD MAINT INFO page.
• CDU ROUTE DATA page.
• CDU PERF INIT page.

Answer 19

• CDU PERF INIT page.

Question 20

The minimum fuel temperature should be set to ___ fuel freeze temperature.
• 3 degrees above
• 3 degrees below
• the actual
• 10 degrees above

Answer 20

• 3 degrees above

Question 21

A FUEL CROSSFEED advisory message displayed on EICAS indicates: • The switch is selected open.
• The crossfeed valve position disagrees with the switch position.
• The crossfeed valve is open.
• The switch is selected closed.

Answer 21

• The crossfeed valve position disagrees with the switch position.

Question 22

When the fuel jettison system is ARMED, the fuel to remain is automatically set to a quantity that will _____ when jettison is complete:
• have the aircraft weight equal to the flight plan landing weight
• leave a total of 23,000 lbs of fuel in the main tanks
• leave the calculated fuel required to reach the selected alternate
• have the aircraft weight at the maximum landing weight

Answer 22

• have the aircraft weight at the maximum landing weight

Question 23

The center fuel tank pump pressure lights illuminate:
• When pump pressure is low with the pump switch selected ON.
• Any time pump pressure is low.
• When fuel quantity is less than 3,000 lbs in the tank.
• When the switch is selected OFF.

Answer 23

• When pump pressure is low with the pump switch selected ON.

Question 24

An EICAS message FUEL JETTISON MAIN indicates:
• Fuel should be jettisoned from the main tanks only.
• Fuel is being jettisoned from the main tanks only.
• Center tank jettison system is inoperative.
• Fuel jettison from the main tanks is inoperative.

Answer 24

• Fuel jettison from the main tanks is inoperative.

Question 25

The APU receives fuel from the:
• Left fuel manifold.
• Center fuel manifold.
• Right fuel manifold.
• Directly from the left tank.

Answer 25

• Left fuel manifold.