Systems FUEL

Question 1

Where are the surge tanks located

Answer 1

Outboard of each wing tank
FCOM 1 11-02-2

Question 2

NACA scoops in each surge tank provide inflight ___
and on the ground ___

Answer 2

Positive ram air pressure
Static ventilation and air pressure relief
FCOM 1 11-02-3

Question 3

During auto fuel balancing both ___ receive fuel directly from the fullest tank until fuel quantities are within ___
When is it activated

Answer 3

Both Engines
Until quantities are within 45 kg
Activated when imbalance of 180 kg is sensed
FCOM 1 11-04-9

Question 4

How much fuel can be manually transferred at a time

Answer 4

227 kg wing tank to wing tank
FCOM 1 11-04-3
454 kg wing tank to centre tank
FCOM 1 11-04-5

Question 5

Which message displays on the EICAS when any tank to tank manual transfer is complete

Answer 5

FUEL MAN XFR COMPLETE
FCOM 1 11-04-3/5

Question 6

Which tanks provide fuel delivery to the engines and APU

Answer 6

Collector tanks
FCOM 1 11-02-1

Question 7

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

Answer 7

One way flapper check valves
FCOM 1 11-02-1
Scavenge ejector pumps
FCOM 1 11-03-11

Question 8

Scavenge ejector pumps require

Answer 8

Motive flow from the EDP to operate
FCOM 1 11-03-11

Question 9

With the L and R BOOST PUMP rotary switches set to AUTO, which conditions must occur for the AC boost pumps to operate

Answer 9

If one or both main fuel ejector pumps fail
FCOM 1 11-03-3

Question 10

What is the requirement for MAN XFR and Gravity XFER prior to take off

Answer 10

Must be off
AFM limitations 02-10-2

Question 11

What is the max fuel imbalance between the contents of the left and right tanks

Answer 11

454 kgs
AFM limitations 02-10-1

Question 12

What is the minimum fuel for a Go Around

Answer 12

442 kgs per wing tank
10 degs nose up
AFM limitations 02-10-1

Question 13

The centre tank is vented into

Answer 13

The left surge tank
FCOM 1 11-02-2

Question 14

What controls and monitors the fuel system

Answer 14

A dual channel Fuel Quantity Computer
FCOM 1 11-01-1

Question 15

If the FQC detects a mismatch between the measured and calculated fuel a

Answer 15

FUEL LEAK SUSPECT message is displayed on the EICAS
FCOM 1 11-05-2

Question 16

What occurs when there is fuel in the centre tank and the fuel quantity of a wing tank is less than 85.6% of its max usable volume

Answer 16

A float valve opens so the centre tank transfer ejector pump can move fuel from centre to main until full
FCOM 1 11-03-13