FUEL

Question 1

Which hopper supplies the APU?

Answer 1

Left

Question 2

Which fuel Hopper has the fuel tank temp sensor?

Answer 2

Both

Question 3

Fuel quantity system test results in the following indications:

Answer 3

7000/7000/14000 in amber inverse video on synoptic pages and an amber “L-R FUEL LEVEL LOW” CAS

Question 4

If electrical power is lost to the fuel pumps, will the engines still run?

Answer 4

Suction feed available/sufficient below 20,000’

Question 5

If automatic refueling has been accomplished since the last flight, you should check that the:

Answer 5

Auto refuel switch on the Remote Refueling Panel is selected “OFF”

Question 6

On EMER BATTS the pilot can see the fuel quantity by

Answer 6

looking at MCDU 1

Question 7

How do you transfer fuel from tank to tank?

Answer 7

Intertank valve

Question 8

During pressure refueling the FQSC is supposed to open and close valves to keep the fuel imbalance to less than

Answer 8

500 lbs. The valve opens again when the imbalance reaches 100 lbs

Question 9

What level triggers the FUEL LEVEL LOW CAS?

Answer 9

650 lbs

Question 10

The Hoppers can hold how much fuel?

Answer 10

190 gallons / 1283 lbs

Question 11

When will Blue “FUEL IMBALANCE” CAS illuminate in flight?

Answer 11

imbalance greater than 1000 lbs

Question 12

Max fuel load at normal density? Can you exceed that?

Answer 12

41,300 lbs. Yes, as long as max a/c weight isn’t exceeded.

Question 13

When does the HFRS open activate and deactivate?

Answer 13

Valve opens at 0°C and stops at 10°C.

Question 14

What systems does FADEC monitor in order to operate the HFRS?

Answer 14

Cockpit overhead panel switch to "AUTO"
Fire Handle
Engine Fuel LOW pressure
Engine Fuel LOW quantity
Engine Fuel flow >2,250/engine
Fuel Filter not blocked
X-Flow valve
Fuel temp
Electrical power to Fuel Return to Tank valve

Question 15

What are the electrical power sources for the Fuel Pumps?

Answer 15

L MAIN - L ESS DC
L ALT - L MAIN DC
R MAIN - R ESS DC
R ALT - R MAIN DC

Question 16

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

Answer 16

Opening the crossflow valve and turning off both fuel pumps on the light wing

Question 17

When must fuel balancing be done using the intertank valve?

Answer 17

When the Tank temp is less than 0° C

Question 18

What is the max fuel imbalance during refueling?

Answer 18

2000lbs

Question 19

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

Answer 19

L/R - 7000 lbs Total - 14,000 lbs

Amber L-R FUEL LEVEL LOW CAS message

Question 20

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

Answer 20

Approx 650 lbs

Question 21

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

Answer 21

It provides a reference pressure to prevent overpressurization of the wing during fueling operations

Question 22

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

Answer 22

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

Question 23

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

Answer 23

No. There is no auto-change feature

Question 24

Which part of the fuel system will be available when powering the aircraft with HMG power only?

Answer 24

Left and Right MAIN boost pumps, and crossflow and intertank valves

Question 25

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

Answer 25

The fuel has reached the plenum and fueling should be stopped

Question 26

When does the Heated Fuel Return system automatically turn on?

Answer 26

either fuel tank temp reaches 0° C or below

Question 27

If an Amber L or R FUEL LOW LEVEL message appears with more than 650 lbs of fuel indicating in the respective tank, what should you do?

Answer 27

Descend without delay to a warmer level (above -60°C) at a minimum of 0.80 Mach.

Question 28

Where are the fuel boost pumps located?

Answer 28

On the forward wall of each wheel well.

Question 29

What are the AMBER and RED fuel tank temp ranges?

Answer 29

RED: +54°C and above
AMBER: -35°C to -36°C
RED: -37°C and below

Question 30

Where does the fuel shut off if a fire handle gets pulled?

Answer 30

At the fuel firewall shutoff valve near the boost pump (wheel well)

Question 31

When can pilot NOT use crossflow valve in flight?

Answer 31

Tank temp below 0°C

Question 32

When does the HFRS automatically shut off?

Answer 32

After it’s activated, when fuel tank temp >+10°C
Engine Fuel Flow is >2,250 pph
Crossflow valve open

Question 33

How many fuel probes in each wing?

Answer 33

19

Question 34

What powers the Fuel Quantity Signal Conditioner?
Ground
In-Flight

Answer 34

Ground Service Bus

Right Emergency battery bus

Question 35

If Amber “Fuel Tank Temperature” CAS illuminates with more than 1000lbs indicating in either tank, aircraft is above 35,000 and tank temp >-35°C, what is the problem?

Answer 35

There’s less than 1000 lbs in the hopper.