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E Jet 175 Study Guide > Fuel > Flashcards

Flashcards in Fuel Deck (15):
1

Where is fuel tank temperature taken?

Left tank

2

What type of fuel pumps are in each wing?

Primary ejector pump

ACMP

DCMP (right tank)

3 Scavenge ejector pumps

3

What is the primary ejector pump?

Venturi pump with no moving parts and no electrical power used by the respective engine

Powered by motive flow

4

What is the purpose of the ACMP?

Back up pump in case of primary ejector pump failure

Engine start

Crossfeed operations

5

What is the purpose of the DCMP?

Used for APU or engine start if AC power or the ACMP is not available

6

What is the purpose of the scavenge pumps?

Maintains fuel level in the collector box

7

What pump is used once an engine is started?

Associated primary ejector pump

8

What is the purpose of the collector box?

Keeps the fuel pumps submerged

Ensures constant fuel flow to the respective engine

9

What is the surge/vent tank?

Collects fuel during wing down maneuvers and returns it to the main tank once the wings are level

Equalizes tank pressure with the atmosphere in flight and during refueling

10

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

No

11

What happens when the crossfeed switch is selected to Low 1?

Crossfeed valve is opened

Commands the ACMP 2 to 'ON' to provide fuel from the right tank to both engines

12

What is the only way to close the engine fuel shutoff valve (SOV)?

Pull the associated engine fire extinguishing handle

13

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

660 lbs of fuel remaining in the associated tank

14

How many fuel tanks does the airplane have?

2 integral tanks

15

What is the priority of the AC fuel pumps?

AC Fuel Pumps supplies fuel to:
Onside engine during engine starts
Cross side engine during crossfeed operations
APU when engine is not running
-Backup pump, supplying fuel to the engine in the event of ejector pump failure
-Left AC electrical fuel pump