Fuel System 2

Question 0

How is the fuel moved from the main tanks to the collector tanks?

Answer 0

Scavenge ejectors (gravity line used as a back up)

Question 1

How is the fuel moved from the center tank to the main tanks?

Answer 1

Transfer ejectors

Question 2

How is the fuel moved from the collector tanks to the engine driven high pressure fuel pumps?

Answer 2

Main ejectors ( backed up by boost pumps)

Question 3

What is the function of the electric boost pumps?

Answer 3

To provide initial fuel for the engine start and to back up the main ejectors

Question 4

What is the flight deck indication of a high pressure fuel pump failure?

Answer 4

Engine flameout

Question 5

What is the maximum fuel imbalance?

Answer 5

300 lbs for takeoff

800 lbs for all other phases

Question 6

When will the fuel system automatically begin transferring fuel?

Answer 6

200 lbs imbalance

Question 7

When are the boost pumps automatically energized?

Answer 7

Low pressure from the main ejectors (if the pumps are armed)

Question 8

Where is the high pressure fuel pump located?

Answer 8

N2 accessory gearbox

Question 9

Where is bulk temperature taken?

Answer 9

Right main tank

Question 10

What is the minimum bulk fuel temp for takeoff? (Jet A)

Answer 10

-30C

Question 11

What is the minimum bulk fuel temp during flight (Jet A)?

Answer 11

Above -40C

Question 12

How is engine fuel heated?

Answer 12

Fuel/oil heat exchanger

Question 13

What is the minimum engine fuel temperature for takeoff?

Answer 13

+5C

Question 14

What is the takeoff limitation if the center tank has less than 500 lbs of fuel?

Answer 14

Each main tank must have greater than 4400 lbs

Question 15

Which bus powers the refuel/defuel panel and refuel/defuel SOV’s

Answer 15

APU Battery Direct Bus

Question 16

Where is the refuel/defuel panel located?

Answer 16

The fuselage forward of right wing

Question 17

Where is the single point adapter located?

Answer 17

Right wing root