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Flashcards in FUEL Deck (22)
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1

HOW IS MEASURED THE FUEL QTY IN THE TANKS?

BY SENSORS INSTALLED IN EACH TANK

2

HOW MANY TANKS HAS THE B787?

3 TANKS, ONE CENTER TANK AND TWO MAIN TANKS, ALSO TWO SURGE TANKS INSTALLED AT THE WING TIPS

3

WHEN THE EXPANDED FUEL TANK INDICATION ARE DISPLAYED ?

DURING A NON-NORMAL OPERATION THE L, R, C INDICATIONS OF QTY ARE SHOWN

4

THE FUEL QTY IN THE B787 MAY FLUCTUATE?

YES THIS IS TOTALLY NORMAL DUE TO THE UNIQUE SHAPE OF THE B787 WINGS

5

WHEN THE FUEL TEMPERATURE IS SHOWN IN AMBER?

WHEN IS APPROACHING EITHER THE FREEZING TEMP ENTERED IN THE CDU OR WHEN APPROACHING THE MAXIMUM TEMPERATURE

6

WHICH FUEL TEMPERATURE ARE DISPLAYED IN THE SYNOPTIC?

ACTUAL FUEL TEMP AND MINIMUM FUEL TEMPERATURE

7

HOW MANY FUEL PUMP ARE INSTALLED IN EACH TANK?

TWO AC- POWERED PUMP IN EACH TANK

8

LOSING ONE PUMP CAN U COMPROMISE THE ENGINE EFFICIENCY?

NO EACH PUMP IS ABLE IN SINGLE PUMP OPERATION TO SUPPLY FUEL TO THE ENGINE IN ANY OPERATING CONDITION

9

WHICH PUMPS HAVE AN HIGHER OUTPUT PRESSURE ?

THE 2 CENTER TANK PUMPS (OVERRIDE/JETTISON)

10

IF THE CENTER TANK PUMP SWITCH IS OFF THE PRESS LIGHT IS?

OFF AS INHIBITED

11

THE FUEL PUMP CAN BE LOADSHED?

YES UNTIL ENOUGH POWER IS AVAILABLE, THE SYS AUTOMATICALLY SELECT THE BEST PUMP TO USE FOR THE TIME BEING

12

WHICH PUMP IS ALSO INSTALLED IN THE LEFT TANK?

A DC- PUMP WHICH OPERATES AUTOMATICALLY TO SUPPLY FUEL TO THE APU IS AC-POWER IS NOT YET AVAILABLE

13

WHERE IS DRAINED THE SURGE TANK FUEL?

IN THE MAIN TANK

14

WHEN THE SCAVENGE SYSTEM IS OPERATING?

FUEL TRANSFER BEGIN WHEN MAIN TANK FUEL IS APPROXIMATELY 16000 KGS AND THE CENTER TANK PUMPS ARE OFF

15

WHICH ARE THE RISKS OF A SUCTION FEED?

WHEN NO PUMPS WORKING THE ENGINE CAN STILL RECEIVE FUEL TROUGH A SUCTION FEED BUT IN IT THE IS SOME AIR RELEASED BY THE FUEL WHILE CLIMBING DUE TO LESS PRESSURE AND THIS MAY LEAD TO A FLAMEOUT. EVENTUALLY DEPLETE AFTER REACHING CRUISE ALTITUDE

16

WHAT IS THE MEANING OF A CROSSFEED VALVE?

ISOLATING LEFT AND RIGHT FUEL SYSTEM

17

WHEN IS THE BALANCE FAULT LIGHT AND EICAS FUEL BALANCE SYS ILLUMINATE OR ACTIVATE?

ANY TIME THE SWITCH IS SELECTED ON AND THE BALANCE IS NOT REACHED

18

WHEN IS THE FUEL BALANCE INHIBITED?

DURING REFUELING

PRIOR ENGINE START AND APU IS OFF

FUEL BALANCE SYSTEM IS FAILED

CENTER TANK PUMP ON

ON GRD AND ONE OR MORE ANGINE RUNNING

INFLT AND JETTISON IS ACTIVE OR FUEL DISAGREE OR QTY LOW DISPLAYED

19

FUEL TANK CAPACITIES?

MAIN TANKS APPROX 17000 BOTH AND CENTER TANK 67500 TOTAL 101.4/5 (-9)

20

FROM WHICH TANKS FUEL JETTISON IS ALLOWED?

FROM ALL THE TANKS

21

WHEN THE JETTISON AUTOMATICALLY STOPS?

WHEN FUEL VALUE IS JUST ABOVE THE “FUEL TO REMAIN” VALUE

22

WHAT IS THE MINIMUM FUEL TO REMAIN FOR JETTISON?

3900 KGS