Fuel

Question 1

How is a fuel balance problem corrected using the crossflow valve?

Answer 1

Open crossflow valve, turn off pump(s) on lighter side

Question 2

What are the correct indications during the fuel quantity indicator test?

Answer 2

Left - 7000, Right - 7000, Total - 14000, Amber L-R FUEL LEVEL LOW CAS message

Question 3

If an amber L or R FUEL LEVEL LOW message appears on the CAS with more than 650 lbs of fuel remaining in the respective wing, what should be done?

Answer 3

Descend without delay to a warmer altitude at a minimum speed of 0.80 M

Question 4

Where is the fuel hopper located?

Answer 4

Inboard portion of each wing tank

Question 5

The automatic refueling system (ground service panel) uses electrical power from what source?

Answer 5

Ground service bus

Question 6

Fuel low level warning is provided by low level sensors, which are installed where in the wing?

Answer 6

Hopper

Question 7

Where are the fuel boost pumps located?

Answer 7

Wheel well

Question 8

What is the function of the pressure fueling static port located under each wing?

Answer 8

It provides a reference pressure to prevent over pressurization of the wing during fueling ops

Question 9

How are the main fuel shutoff valves checked during the preflight walkaround?

Answer 9

Verify that the valves are open by physically checking that the red valve position indicator is in approximately the 7 o’clock position

Question 10

When and how are fuel quantity updates performed?

Answer 10

Hourly, using data from the FQMS. On FMS PERF INIT page 5/5, perform a “delete” to line select key 2L

Question 11

What are the electrical power sources of the fuel boost pumps?

Answer 11

L & R MAIN: L & R ESS DC BUS

L & R ALT: L & R MAIN DC BUS

Question 12

How much fuel is remaining in the hopper when an amber L-R FUEL LEVEL LOW CAS message appears?

Answer 12

Approximately 650 lbs

Question 13

How much fuel is in the hopper?

Answer 13

190 gallons

Question 14

What is the maximum fuel load?

Answer 14

41,300 lbs

Question 15

Max fuel imbalance

Answer 15

1000 for takeoff
2000 in flight
2000 during refueling

Question 16

If a main boost pump should fail, will the alternate boost pump automatically come on if selected off?

Answer 16

No, there’s no auto-change feature

Question 17

If you are powering the aircraft in HMG only, which part of the fuel system will be available?

Answer 17

L & R MAIN boos pumps

Crossflow & intertank valve

Question 18

When do the RED and AMBER messages come ON for fuel TEMP?

Answer 18

RED: below -37C or above +54C
AMBER: between -35C and -36C -OR-
Tank temp above -35C above 35,000ft with >1000 in either or both tanks but only 1000 left in hopper

Question 19

Explain what you are looking for when you conduct the Fuel System Test

Answer 19

AMBER L-R Fuel Level Low message

AMBER 7000/7000/14000 in all areas and the synoptic page displaying fuel information

Question 20

When must fuel balancing be done using the inter-tank valve?

Answer 20

Tank temp < 0C

Question 21

If the RED light on the refueling door illuminates during refueling, what does this mean and what should be done?

Answer 21

The fuel has reached the plenum and you should shut off fueling

Question 22

If an Engine Fire Handle is pulled, where is the fuel shut OFF?

Answer 22

At the boost pumps in the wheel well

Question 23

The engines should run without boost pump pressure up to what maximum altitude?

Answer 23

< 20,000 ft

Question 24

If 2 boost pumps fail on the same side, how would you keep the fuel balanced?

Answer 24

By opening the inter-tank valve and using a sideslip (nose toward the heavy wing)