ESV Study Guide Fuel Flashcards

1
Q

When fuel is stored in the center and main tanks, both engines operating, all boost pumps on, fuel is supplied to the engines from ____.
a. the No. 2 main tank
b. both main tanks
c. the center tank
d. the No. 1 main tank

A

c. the center tank

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2
Q

The main fuel tanks are serviced through ____.
a. either the over wing or single point refueling receptacles
b. over wing fueling receptacles
c. the airplane fuel transfer system from the center tank only
d. a single point refueling receptacle

A

d. a single point refueling receptacle

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3
Q

Each engine can be fed fuel from either or both main tanks through the fuel _____ valve. a. shutoff
b. crossfeed c. bypass
d. transfer

A

b. crossfeed

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4
Q

With all fuel pumps ON, why does the center tank provide the fuel to the engines?
a. The center tank pumps are closer to the engine feed pumps.
b. The center tank pumps provide more pressure.
c. The fuel crossfeed valve is open.
d. One-way check valves prevent wing tanks from feeding.

A

b. The center tank pumps provide more pressure.

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5
Q

With fuel pumps turned OFF, the APU fuel is suction-fed from ____.
a. the No. 1 main tank
b. the Center tank
c. the No. 2 main tank
d. Only what remains in the fuel lines. The APU cannot be suction-fed from a fuel tank.

A

a. the No. 1 main tank

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6
Q

Pulling a fire handle or placing an engine start lever in CUTOFF closes ____.
a. the engine fuel shutoff valve only
b. the spar fuel shutoff valve only
c. both the spar fuel shutoff valve and the engine fuel shutoff valve
d. both the spar fuel shutoff valve and the EEC shutoff valve

A

c. both the spar fuel shutoff valve and the engine fuel shutoff valve

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7
Q

The Center Tank Scavenge Pump will activate when ____.
a. #2 Main Tank has 4500 pounds
b. #1 Main Tank is about half full
c. Center Tank quantity reaches 3000 pounds
d. #1 Main Tank has 5800 pounds

A

b. #1 Main Tank is about half full

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8
Q

How many positions are there on the fuel flow/rate used switch?
a. Two - RATE, USED
b. Three - RESET, RATE, USED
c. Four - RATE, USED, RESET, REMAINING
d. None of the above

A

b. Three - RESET, RATE, USED

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9
Q

A bright blue Crossfeed VALVE OPEN Light means the Crossfeed Valve is ____. a. in transit or the valve position and CROSSFEED Selector disagree
b. closed
c. open
d. in agreement with the position commanded

A

a. in transit or the valve position and CROSSFEED Selector disagree

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10
Q

An amber FILTER BYPASS Light means ____.
a. impending fuel filter bypass due to a contaminated filter
b. impending fuel filter bypass due to ice
c. the fuel filter is being bypassed because of excessive pump pressure
d. the fuel filter is being bypassed because of low pump pressure

A

a. impending fuel filter bypass due to a contaminated filter

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11
Q

The Fuel Flow Used readout is updated for the next flight ____.
a. upon touchdown through the ground sensing switch
b. at brake release prior to pushback
c. automatically whenever the airplane is refueled
d. by use of the FUEL FLOW Switch moved to RESET

A

d. by use of the FUEL FLOW Switch moved to RESET

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12
Q

IMBAL means that the main tanks differ by more than _____ pounds. a. 2,000
b. 800 c. 1,000 d. 1,500

A

c. 1,000

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13
Q

CONFIG means that either engine is running and the fuel in the center tank is more than _____ pounds and both center tank pumps are producing _____ pressure.
a. 1,600/low
b. 1,000/low
c. 1,600/high d. 1,000/high

A

a. 1,600/low

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14
Q

Will the CONFIG, IMBAL or LOW annunciation on the fuel gauges cause the MASTER CAUTION lights to flash?
a. Yes
b. No
c. Yes if 10% below the trigger values of the annunciation d. Yes, but only during RECALL

A

b. No

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15
Q

The Fuel LOW Alert indicates fuel quantity in the related main tank is less than _______ pounds. a. 2,000
b. 1,000 c. 1,600 d. 800

A

a. 2,000

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16
Q

The maximum fuel temperature is ____ degrees C. a. 54
b. 49 c. 43 d. 46

A

b. 49

17
Q

Random fuel imbalance between main tanks must not exceed ____ pounds for taxi, takeoff, flight, or landing.
a. 1,200 b. 1,000 c. 1,500 d. 800

A

b. 1,000

18
Q

The Nitrogen Generation System (NGS) Operability Indicator is located in the right wheel well. If the Degraded (blue) light is illuminated, it indicates ____________________.
a. a normal indication during preflight
b. NGS is operational, but is operating in a degraded condition, make an E-6 entry
c. the system is INOP, do not operate the airplane until the system is fixed
d. maintenance should de-activate the NGS system

A

b. NGS is operational, but is operating in a degraded condition, make an E-6 entry

19
Q

(MAX) An illuminated FUEL FLOW light alerts the crew of:
a. Difference between the actual engine fuel flow rate and the FMC expected fuel flow rate.
b. Significant difference between tank quantities.
c. FMC expected fuel flow rate exceeds a pre-determined threshold value for 5 consecutive minutes
d. Both a and c above.

A

d. Both a and c above.

20
Q

(MAX) An amber FUEL DISAGREE message:
a. Displayed when there is a disagreement between the FMS calculated and the measured fuel for 5
continuous minutes.
b. Is displayed if the incorrect Fuel Pump Switches are selected off during Fuel Balancing.
c. Only displayed in the CDU scratchpad when there is a disagreement between the FMS calculated
and the measured fuel
d. Displayed when there is a disagreement between the FMS calculated and the measured fuel for
15 continuous minutes.

A

a. Displayed when there is a disagreement between the FMS calculated and the measured fuel for 5
continuous minutes.

21
Q

**The Fuel Control Panel is configured as shown. The center tank is empty and both main tank fuel quantities are above 8000 lbs. How does this affect the current operation of the fuel system?
a. No effect. The #1 Main Tank AFT pump pressure is sufficient to
supply the engine.
b. Crossfeeding fuel from the #2 Right Main Tank is required to supply
sufficient pressure for normal operation of engine #1.
c. Descend to a lower altitude to assist engine suction feed and
prevent flame out of #1 engine.
d. Engine #1 must be shut down.

A

a. No effect. The #1 Main Tank AFT pump pressure is sufficient to
supply the engine.

22
Q

**The aircraft is in level cruise flight and all fuel tank pump switches are ON. Both main tanks are full, and useable center tank fuel is 7000 lbs. All other conditions are normal. Which statement is valid with this light illuminated?
a. Both engines are still receiving fuel from the Center Fuel Tank.
b. The #1 engine is now being gravity (suction} fed.
c. The #1 Main Fuel Tank is now supplying fuel to the #1 engine.
d. You have lost all fuel pressure to the #1 engine.

A

c. The #1 Main Fuel Tank is now supplying fuel to the #1 engine.

23
Q

**The aircraft is in level cruise flight and all fuel tank pump switches are
ON. Both main tanks are full and useable center tank fuel is 7000 lbs. If no action is taken, what will happen to the fuel quantity in each main tank?
a. The #2 Main Tank fuel quantity will remain constant and the #1 Main Tank fuel quantity will
increase.
b. The #1 Main Tank fuel quantity will remain constant and the #2 Main Tank fuel quantity will
decrease.
c. Both main tank fuel quantities will start to decrease.
d. The #1 Main Tank fuel quantity will start to decrease and the #2 Main Tank fuel quantity will
remain constant.

A

d. The #1 Main Tank fuel quantity will start to decrease and the #2 Main Tank fuel quantity will
remain constant.

24
Q

**Review the appropriate QRH procedure. It states if one center tank Low Pressure Light is illuminated, the Crossfeed Selector should be placed in open. Why is this action directed by the ORH?
a. An Airworthiness Directive mandates it.
b. This will cause the Right Center Tank Fuel Pump Low Pressure light to illuminate.
c. To prevent a fuel quantity imbalance.
d. The left center tank pump switch must be turned OFF, leaving insufficient pressure to supply
center tank fuel to both engines unless the Crossfeed is open.

A

c. To prevent a fuel quantity imbalance.

25
Q

**With the airplane in flight, what does it mean when this light illuminates?
a. The fuel temperature is too high.
b. There is no fuel pump pressure to the #1 engine.
c. An impending fuel filler bypass on #2 engine.
d. An impending fuel filter bypass on #1 engine.

A

d. An impending fuel filter bypass on #1 engine.

26
Q

**The aircraft is in level cruise flight with this light illuminated. Both main tanks are full, and usable center tank fuel is 5000 lbs. All other conditions are normal. Which statement is valid?
a. The #1 engine will begin feeding from the #1 Main Fuel Tank.
b. The #2 engine will begin feeding from the #2 Main Fuel Tank.
c. Both engines will continue to feed from the Center Fuel Tank.
d. The #1 engine will automatically start feeding from the #2 Main
Fuel Tank.

A

c. Both engines will continue to feed from the Center Fuel Tank.

27
Q

**At the moment this Low Pressure light illuminated, which of the following statements is also true?
a. The Master Caution light will illuminate.
b. The Center Tank Scavenge Jet Pump system will no longer operate if needed.
c. Once the Center Fuel Tank is empty, there is no fuel pump pressure to #1 engine.
d. Fuel Crossfeed capability is not available.

A

b. The Center Tank Scavenge Jet Pump system will no longer operate if needed.

28
Q

**During engine start, with the #1 engine start lever in the idle position, the “ENG VALVE CLOSED” light illuminates. What does this mean?
a. The engine valve is closed
b. The engine valve is open
c. Both valves are closed
d. The spar valve is closed

A

a. The engine valve is closed

29
Q

**What of the following statements is true with the depicted condition?
a. The #1 engine will start normally
b. The #1 engine will not start
c. The #1 engine will have a hot start
d. The #1 engine will have an overspeed

A

b. The #1 engine will not start

30
Q

**What action should be taken?
a. Move the start lever to cutoff and motor the engine for 15 seconds
b. Move the start lever to cutoff and motor the engine for 60 seconds
c. Push the thrust lever forward
d. No action is required

A

b. Move the start lever to cutoff and motor the engine for 60 seconds

31
Q

**What could cause this light to illuminate?
a. Ice formation on the Hydro Mechanical Unit (HMU).
b. Solid contaminants blocking the fuel filter.
c. Solid contaminants in the oil filler.
d. The EEC has moved to the alternate (ATLN) mode.

A

b. Solid contaminants blocking the fuel filter.

32
Q

**What action should be taken in flight when this light illuminates?
a. Turn ON the fuel heater.
b. Tum OFF the fuel pump pressure to the respective engine.
c. Consider landing at the nearest suitable airport.
d. No action required unless both Filter Bypass lights illuminate.

A

d. No action required unless both Filter Bypass lights illuminate.

33
Q

**Why is there an IMBAL indication under the number 1 fuel quantity?
a. The number 1 main tank quantity is more than 200 lbs less than
number 2 main tank quantity.
b. The number 1 main tank quantity is more than 200 lbs above the
number 2 main tank quantity
c. The number 1 and 2 main tank quantity are equal
d. There is more than 1000 lbs difference between the main tank

A

d. There is more than 1000 lbs difference between the main tank

34
Q

**What effect would this have on the Master Caution system?
a. The Master Caution lights would illuminate with the IMBAL annunciation
b. The Master Caution Lights would illuminate on recall
c. There is no Master Caution with this indication
d. The Master Caution Lights will only illuminate for this problem with the airplane on the ground.

A

c. There is no Master Caution with this indication

35
Q

**How would the crew correct this imbalance condition?
a. Feed both engines from the center tank
b. Open the cross feed valve and turn OFF number 1 main tank pumps
c. Turn the number 2 main pumps OFF and open the cross feed valve
d. Open the cross feed valve only

A

b. Open the cross feed valve and turn OFF number 1 main tank pumps

36
Q

**The crew moves the cross feed valve to open and the left center tank pump switch to OFF. If the cross feed VALVE OPEN light illuminates and remains bright:
a. The left center pump failed to shut off
b. The cross feed valve failed in the open position
c. The cross feed valve failed in the closed position
d. The number 1 engine has no fuel and will flame out.

A

c. The cross feed valve failed in the closed position

37
Q

**With the Left Center Tank pump switch off and the CROSSFEED valve closed, what effect will this condition have on the fuel burned?
a. The right center tank pump will still feed both engines.
b. The number 2 main tank will feed both engines.
c. The center tank will feed the number 2 engine and the number 1 main tank will feed the number 1 engine.
d. The main tanks will feed the respective engines.

A

c. The center tank will feed the number 2 engine and the number 1 main tank will feed the number 1 engine.

38
Q

**With the Left Center Tank pump switch off and the CROSSFEED valve closed, what action will be required to prevent a fuel imbalance?
a. No further action required
b. Turn the left center tank pump back on or turn the right center tank pump off.
c. Shut down engine number 1.
d. Turn off right main tank pumps.

A

b. Turn the left center tank pump back on or turn the right center tank pump off.