Fuel Supply System 1-29

Question 1

Usable amount of fuel (single point)?

Answer 1

approximately 1100 pounds

Question 2

Usable amount of fuel (over the wing)?

Answer 2

1200 lbs

Question 3

What is the primary refueling

method?

Answer 3

Single point pressure refueling is the primary refueling

method.

Question 4

How many integral tanks?

Answer 4

3

Question 5

When parking on ramps with greater than_______, the fuel system may vent fuel
overboard through a pressure relief valve.

Answer 5

1% slope

Question 6

The fuel system incorporates an auto balance system to
keep the fuel level in the wing tanks within ________ of
each other.

Answer 6

20 pounds

Question 7

When a fuel imbalance of________ or more is

detected for more than_________, the transfer valve will close the motive flow line to the light tank.

Answer 7

20 pounds; 30 seconds

Question 8

If the fuel imbalance is not
reduced to less than___________ within__________ , the FUEL BAL annunciator will illuminate and the auto balance system will shut off

Answer 8

30 lbs; 2 minutes

Question 9

The FUEL BAL annunciator will remain illuminated until the system is reset.

Answer 9

True.

Question 10

If the auto balance system shuts off without reducing the fuel imbalance to 30 pounds or less, the auto balance system may be reset to
provide an additional 2 minutes to balance
the fuel load.

Answer 10

True

Question 11

The fuel system includes ______ annunciators to indicate fuel system operations

Answer 11

6

Question 12

What are the six fuel system annunciators?

Answer 12

red FUEL PX
amber L FUEL LO 
amber R FUEL LO
amber FUEL BAL
green M FUEL BAL
green BOOST PUMP

Question 13

When will the red FUEL PX annunciator illuminate?

Answer 13

less than 10 psi fuel

pressure in the motive flow/return flow supply line.

Question 14

When will the green BOOST PUMP annunciator illuminate?

Answer 14

1. manually by selecting the BOOST PUMP switch ON,
2. automatically by the low-pressure switch if the PCL is
   above the IDLE position,
3. whenever the starter is
   activated regardless of fuel pressure

Question 15

When will the amber L/R FUEL LO annunciator illuminate?

Answer 15

activated by optical sensors and indicate fuel quantity below approximately 110 pounds in the respective wing tank.

Question 16

When will the amber FUEL BAL illuminate?

Answer 16

if indicated fuel imbalance exceeds 30 pounds for 2

minutes or a fuel probe fails.

Question 17

When will the green M FUEL BAL illuminate?

Answer 17

if the fuel balance switch is in the MAN/RESET position.

Question 18

When should you not attempt to manually balance fuel load?

Answer 18

if alternate engine data display is indicating

FP FAIL. Reading may not be correct.

Question 19

The fuel quantity indicating system uses ______ fuel probes.

Answer 19

seven.

three in each wing tank and one in the collector tank.

Question 20

The outer probe provides fuel readings until approximately ______,

Answer 20

445±50 pounds

Question 21

The middle probe provides fuel readings until approximately ______,

Answer 21

308±50 pounds.

Question 22

The inner probe provides fuel readings until approximately ______,

Answer 22

20 pounds since the collector tank only has one probe and divides its capacity equally between the left and right fuel tank readings.

Question 23

If a fuel probe fails, what will illuminate?

Answer 23

the amber FUEL BAL annunciator will illuminate and FP FAIL will display in amber text in the lower center portion of the AEDD

Question 24

If the fuel gage does not show an imbalance in the event of an FP FAIL light, what can you conclude?

Answer 24

the failed probe is not being used to sense fuel.

Question 25

Automatic fuel balancing will not be available with FP FAIL, and the low fuel warning lights cannot be trusted to provide an accurate indication of minimum fuel level.

Answer 25

False. the low fuel warning

lights will continue to provide an accurate indication of minimum fuel level.

Question 26

Fuel gravity drains from outboard to inboard wing cavities where________ pumps supply fuel to the _______ tank.

Answer 26

transfer jet pumps; collector

Question 27

A _______ valve

in the collector tank supplies fuel to the engine

Answer 27

fuel pickup

Question 28

During inverted flight, a weighted rod in the pickup valve closes off the normal fuel pickup, and opens the inverted flight fuel pickup.

Answer 28

True

Question 29

The weighted rod provides a minimum of _______ of fuel
regardless of orientation, and prevents air ingestion into the
fuel system.

Answer 29

15 seconds

Question 30

A ________ or ________ in the collector tank feeds fuel to the engine-driven low pressure fuel pump.

Answer 30

primary jet pump ; electric boost pump

Question 31

The _________ supplies fuel to the engine-driven high pressure fuel pump which supplies fuel to the FMU.

Answer 31

low pressure fuel pump

Question 32

The electric boost pump provides fuel for engine start and serves as a backup to the engine-driven low pressure fuel pump.

Answer 32

True

Question 33

If both the electric boost pump and the engine-driven low pressure pump fail, the engine-driven
high pressure fuel pump will?

Answer 33

Suction feed sufficient fuel for
continued engine operation but will not allow an engine
restart

Question 34

With both the electric boost pump and the engine-driven low pressure pump fail you can still perform an engine restart?

Answer 34

False.

Question 35

The fuel supply line to the engine incorporates two manually operated _________ and a________.

Answer 35

shutoff valves; fuel filter

Question 36

One shutoff valve is provided to isolate the fuel system for engine or fuel filter maintenance. What activates the other?

Answer 36

The firewall shutoff handle

Question 37

If the FUEL PX annunciator illuminates and the boost pump activates during inverted flight, do what?

Answer 37

cease inverted maneuvers and notify maintenance after flight.