Fuel

Question 1

How many fuel tanks does the aircraft have?

Answer 1

2 integral wing tanks

Question 2

Where would the fuel system indications and parameters be displayed?

Answer 2

On the MFD synoptic pages and the EICAS

Question 3

How do you reset the fuel used?

Answer 3

NAV, select 3R, Press DEL, select 2L

Question 4

What is the total fuel capacity?

Answer 4

20,935

Question 5

How much usable and unusable fuel is in each tank?

Answer 5

Usable - 10,392.5 lbs

Unusable - 75 lbs

Question 6

What is the fuel density?

Answer 6

6.767 lbs/US GAL

Question 7

What would be the indication of a fuel imbalance?

Answer 7

An EICAS FUEL IMBALANCE caution is displayed when the imbalance exceeds 800 lbs and remains until the imbalance is less then 100 lbs

Question 8

Where is the refueling door located?

Answer 8

Right wing

Question 9

Can the aircraft be over-wing fueled?

Answer 9

Yes, by two manual refueling ports, one on each wing

Question 10

Can you refuel the airplane without APU/EXT power?

Answer 10

Yes

Question 11

Does the aircraft have collector tanks?

Answer 11

Yes

Question 12

Will an inop ejector pump give an EICAS indication?

Answer 12

Yes

Question 13

Where is the fuel tank temp taken from?

Answer 13

Left tank

Question 14

What types of furl pumps are in each wing?

Answer 14

• Primary ejector pump
• ACMP
• DCMP (right only)
• 3 scavenge ejector pumps

Question 15

What is the primary ejector pump?

Answer 15

• Venturi pump with no moving parts and no electrical power used by the respective engine
• Powered by motive flow

Question 16

What is the purpose of the AC fuel pumps?

Answer 16

• Backup pump, supplying fuel to the engine in the event of ejector pump failure or during engine start
• Supply fuel to the APU when the engine is not running
• X-feed ops

Question 17

What happens when the AC PUMP 1 (2) and DC PUMP selector knob is in AUTO?

Answer 17

Automatically operates the associated AC or DC fuel pump according to system logic

Question 18

Does the aircraft have a DC pump?

Answer 18

Yes on the right side

Question 19

What is the only thing that closes an engine shutoff valve?

Answer 19

Fire handle

Question 20

What is the purpose of the DC fuel pump

Answer 20

Ir provides pressurized fuel for normal operation APU operation and engine start, when AC power or the AC pump is not available

Question 21

What is the purpose of scavenge pumps?

Answer 21

Maintains fuel level in the collector box

Question 22

What does the OFF position of the fuel crossed selector knob do?

Answer 22

Closes the crossed valve

Question 23

What does the OFF position of the DC fuel pump knob do?

Answer 23

Deactivates the DC fuel pump

Question 24

What does the OFF position of the AC FUEL selector knob do? ON position?

Answer 24

OFF: Deactivates the associated AC pump
ON: Activates the associated AC pump

Question 25

What pump is used once an engine is started?

Answer 25

Associated primary ejector pump

Question 26

What is the purpose of the collector box?

Answer 26

- Keeps fuel pumps submerged | - Ensures constant fuel flow to the respective engine

Question 27

What is the surge/vent tank

Answer 27

- Collects fuel during wing-down maneuvers and returns it to the main tank once the wings are level - Equalizes tank pressure with atmosphere in flight and during refueling

Question 28

What protects the fuel tank from over-pressurization

Answer 28

Pressure relief valve

Question 29

Can fuel be transferred from tank to tank or be dumped overboard?

Answer 29

No

Question 30

When does the x-feed valve open automatically?

Answer 30

During refueling operations

Question 31

How is the fuel cross-fed during flight

Answer 31

Select LOW 1 or LOW 2 with AC PUMPS in AUTO

Question 32

If you start to crossed before you get the fuel imbalance EICAS at 800 lbs, will you get an indication to stop the crossfeed?

Answer 32

No

Question 33

At what fuel level do you get the EICAS "FUEL IMBALANCE" and what is the max fuel imbalance limitation?

Answer 33

800 lbs, 794 lbs

Question 34

How many magnetic level indicators are on each wing?

Answer 34

3

Question 35

How would you correct a fuel imbalance?

Answer 35

Position the crossed selector knob to the tank to the low side as required

Question 36

Will setting AC PUMP 1 or 2 selector knob to any position other than AUTO override the x-feed command?

Answer 36

Yes

Question 37

What happens when the crossed switch is selected to LOW 1

Answer 37

- Crossend valve is opened | - Automatically activates the right AC fuel pump (AC FUEL PUMP 2), supplying from the right tank to both engines

Question 38

Do AC pumps continuously run during normal operations

Answer 38

No, but it does run during an engine start

Question 39

What does the LOW 1 (2) position on the fuel crossed selector knob do?

Answer 39

Opens the crossed valve and turns on the opposite AC fuel pump

Question 40

What is the power source for AC PUMP 1? | AC PUMP 2?

Answer 40

- AC BUS 1 | - AC ESS BUS

Question 41

APU normally gets fuel from where?

Answer 41

Right wing tank

Question 42

What is an alternate method for determining fuel quantity if the fueling panel did not work?

Answer 42

- Magnetic fuel level indicators or reading the fuel on the MFD or EICAS - Maintenance function only

Question 43

What is the only way to close the engine fuel SOV

Answer 43

Pull the associated fire handle

Question 44

How would you check the fuel quantity if the electric fuel quantity indicator fails?

Answer 44

With the magnetic indicators

Question 45

When will the FUEL 1 (2) LO LEVEL EICAS be presented?

Answer 45

660 lbs of fuel remaining in the associated tank

Question 46

The DC Fuel pump is located where and can be used for what?

Answer 46

Is located on the right wing tank and can be used in flight and on the ground

Question 47

Why do you have a DC pump?

Answer 47

RAT/batteries or DC GPU

Question 48

Why during dual engine failure do you put the fuel crossed to LOW 1?

Answer 48

to allow the DC pump to get fuel to the #1 engine when on RAT/batteries

Question 49

How can you determine if you have a fuel leak?

Answer 49

- By the QRH, but here are some signs: - Visual observations of fuel spray from the strut/engine, excessive engine fuel flow, total fuel quantity reducing at an abnormal rate, fuel imbalance

Question 50

With the engines running, through which pumps are the engines and APU fed?

Answer 50

Primary ejector pumps

Question 51

Can Republic Airlines operate into reserve fuel if needed? If yes, what will the pilot need to do?

Answer 51

Yes, declare Min Fuel with ATC and do not accept delays

Question 52

How does Republic Airlines calculate EXTRA fuel?

Answer 52

Minimum of 25 mins of extra fuel calculated using a holding burn rate at 10,000 ft

Question 53

When should a fuel emergency be declared? When should Min Fuel be declared?

Answer 53

Emergency: When projected fuel consumption will result in landing with less than 30 minutes of fuel Min Fuel - When projected fuel consumption will result in landing with less than 45 mins of fuel

Question 54

Should you continue knowing you will be landing in a fuel emergency?

Answer 54

No

Question 55

What are the Amber and Red fuel numbers for the E170?

Answer 55

Amber - 1320/side | Red - 660/side