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United 787 SV Study Guide 12/2023 > Fuel Systems > Flashcards

Fuel Systems Flashcards

1
Q

The expanded fuel quantity display appears when: [8.120.20]
A. One or more fuel quantity indicators are inoperative.
B. The FUEL QTY LOW message is displayed.
C. The EICAS message FUEL IMBALANCE is displayed.
D. All the above.

A

D. All the above.

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2
Q

Actual fuel temperature is displayed on . [8.120.10, 8.120.20]
A. EICAS
B. FUEL synoptic
C. STAT synoptic
D. Both A and B

A

D. Both A and B

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3
Q

The DC powered fuel pump is located in the left main tank. [8.70.30]
A. True
B. False

A

A. True

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4
Q

The DC fuel pump operates automatically when: [8.70.30]
A. B oth AC fuel pumps in the left or right main tank fail.
B. Anytime total fuel quantity is less than 8000 pounds.
C. The APU is started without AC power available.
D. Anytime the APU is started.

A

C. The APU is started without AC power available.

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5
Q

The CDU message INSUFFICIENT FUEL indicates: [8.120.30]
A . Fuel at destination will be zero.
B. Predicted fuel at destination will be less than entered reserves.
C. Center tank fuel is unusable.
D. The fuel quantity system is inoperative.

A

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

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6
Q

When all available fuel has been jettisoned, there will be: [8.120.10]
A. 11,500 pounds total in both main tanks combined.
B. 23,500 pounds in the left, center, and right main fuel tanks combined.
C. 10,000 pounds remaining in the center tank.
D. 8700 pounds remaining in each main fuel tank.

A

D. 8700 pounds remaining in each main fuel tank.

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7
Q

On the ground, the fuel jettison system: [8.120.10]
A. Is inhibited.
B. Will operate only when the engines are shutdown.
C. Is inhibited only when using external power.
D. Will operate only if the APU is providing electrical power.

A

A. Is inhibited.

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8
Q

A DC powered fuel pump located in the tank provides fuel for APU start if AC
power is not available. [8.70.30, 8.120.10]
A. Right main
B. Center
C. Left main
D. Right surge

A

C. Left main

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9
Q

The fuel balance system is inhibited: [8.120.10]
A. During defueling, refueling or ground transfer of fuel.
B. With the fuel jettison system armed.
C. On the ground and one or both engines are running.
D. All the above.

A

D. All the above.

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10
Q

Placing the left fuel jettison NOZZLE switch to ON in-flight with the jettison system
ARMED will: [8.120.10]
A. Open both main tank jettison isolation valves.
B. Open both center tank jettison isolation valves.
C. Automatically displays the fuel synoptic.
D. A and B.

A

D. A and B.

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11
Q

Placing the fuel jettison ARM switch to the ARMED position causes the Fuel To
Remain indication to be displayed: [8.120.10]
A. On the EICAS fuel display only.
B. On the Fuel synoptic only.
C. On both the EICAS fuel display and FUEL synoptic.
D. On the CDU PERF page.

A

C. On both the EICAS fuel display and FUEL synoptic.

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12
Q

Fuel jettison time is displayed: [8.120.10]
A. On both the primary EICAS display and FUEL synoptic.
B. On the primary EICAS display only.
C. On the AUX panel in the FLT INFO box.
D. On the FUEL synoptic only.

A

D. On the FUEL synoptic only.

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13
Q

The center tank scavenge system will begin to transfer fuel from the center tank
when: [8.120.10]
A. Either main tank quantity is below 35,000 pounds and both center tank
pumps are off.
B. Both main tank quantities are below 11,500 pounds.
C. Either main tank quantity is below 8700 pounds and both center tank
pumps are off.
D. Both main tank quantities are below 15,000 pounds.

A

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

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14
Q

When balancing fuel, what indication(s) appear when the main tank fuel is balanced?
[8.120.20]
A. A flashing FUEL BALANCED indication replaces the Fuel Quantity title on the
expanded quantity display.
B. An EICAS message FUEL BALANCED will display.
C. BALANCED will display on the FUEL synoptic.
D. The expanded display will immediately blank.

A

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

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15
Q

The minimum fuel temperature is displayed on the: [8.110.20, 8.120.10]
A. EICAS STATUS page.
B. EICAS primary display only.
C. CDU PERF INIT page and the FUEL synoptic.
D. CDU VNAV cruise page.

A

C. CDU PERF INIT page and the FUEL synoptic.

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15
Q

On the ground or in flight, certain fuel pumps may load shed when: [8.120.10]
A. Less than all engines or generators are operating.
B. Only the R1 and R2 main buses are powered.
C. Only the L1 and L2 main buses are powered.
D. Only electrical power is supplied by the standby power system.

A
16
Q

If a center tank pump has low output pressure with low center tank quantity, the
EICAS message is displayed. [8.120.20]
A. FUEL PUMP CENTER
B. CENTER TANK EMPTY
C. FUEL LOW CENTER
D. FUEL QTY LOW

A

C. FUEL LOW CENTER

17
Q

The minimum fuel temperature is entered on the: [8.110.20]
A. CDU PROGRESS page 2 of 2.
B. MFD MAINT INFO page.
C. CDU TAKEOFF page 2 of 2.
D. CDU PERF INIT page.

A

D. CDU PERF INIT page.

17
Q

The minimum fuel temperature should be set to fuel freeze temperature.
[8.110.20]
A. 3° above
B. 3° below
C. The actual
D. The flight plan

A

A. 3° above

18
Q

A FUEL CROSSFEED advisory message displayed on EICAS indicates: [8.120.10]
A. The switch is selected open.
B. The crossfeed valve position disagrees with the switch position.
C. The fuel needs to be balanced.
D. The switch is selected closed.

A

B. The crossfeed valve position disagrees with the switch position.

18
Q

When the fuel jettison system is ARMED, the fuel to remain is automatically set to
a quantity that will when jettison is complete. [8.120.10]
A. Have the airplane weight equal to the flight plan landing weight
B. Leave a total of 23,000 pounds of fuel in the main tanks
C. Leave the calculated fuel required to reach the selected destination
D. Have the airplane weight at the maximum landing weight

A

D. Have the airplane weight at the maximum landing weight

19
Q

The center fuel tank pump pressure lights illuminate: [8.120.20]
A. When pump pressure is low with the pump switch selected ON.
B. Any time pump pressure is low.
C. When all fuel quantity in the center has been scavenged.
D. When the switch is selected OFF.

A

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

20
Q

An EICAS message FUEL JETTISON MAIN indicates: [8.120.30]
A. Center fuel tank is empty.
B. Fuel is being jettisoned from the main tanks only.
C. Center tank jettison system is inoperative.
D. Fuel jettison from the main tanks is inoperative.

A

D. Fuel jettison from the main tanks is inoperative.

20
Q

During normal operations, the APU receives fuel from the: [8.120.10]
A. Left fuel manifold.
B. Right main tank.
C. Right fuel manifold.
D. Directly from the left tank.

A

A. Left fuel manifold.

21
Q

Where does the APU get its fuel? [8.120.10]
A. Left Main Tank
B. Right Main Tank
C. Center Tank
D. Any fuel tank that has an operating fuel pump

A

D. Any fuel tank that has an operating fuel pump

22
Q

An amber fuel temperature on the EICAS indicates: [8.120.10]
A. The fuel temperature is approaching the maximum allowable temperature
B. Fuel is low
C. The fuel temperature is approaching the fuel freeze temperature that was
entered in the CDU
D. Both A and C

A

D. Both A and C

United 787 SV Study Guide 12/2023 (16 decks)

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