FUEL Flashcards
HOW IS MEASURED THE FUEL QTY IN THE TANKS?
BY SENSORS INSTALLED IN EACH TANK
HOW MANY TANKS HAS THE B787?
3 TANKS, ONE CENTER TANK AND TWO MAIN TANKS, ALSO TWO SURGE TANKS INSTALLED AT THE WING TIPS
WHEN THE EXPANDED FUEL TANK INDICATION ARE DISPLAYED ?
DURING A NON-NORMAL OPERATION THE L, R, C INDICATIONS OF QTY ARE SHOWN
THE FUEL QTY IN THE B787 MAY FLUCTUATE?
YES THIS IS TOTALLY NORMAL DUE TO THE UNIQUE SHAPE OF THE B787 WINGS
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
WHICH FUEL TEMPERATURE ARE DISPLAYED IN THE SYNOPTIC?
ACTUAL FUEL TEMP AND MINIMUM FUEL TEMPERATURE
HOW MANY FUEL PUMP ARE INSTALLED IN EACH TANK?
TWO AC- POWERED PUMP IN EACH TANK
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
WHICH PUMPS HAVE AN HIGHER OUTPUT PRESSURE ?
THE 2 CENTER TANK PUMPS (OVERRIDE/JETTISON)
IF THE CENTER TANK PUMP SWITCH IS OFF THE PRESS LIGHT IS?
OFF AS INHIBITED
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
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
WHERE IS DRAINED THE SURGE TANK FUEL?
IN THE MAIN TANK
WHEN THE SCAVENGE SYSTEM IS OPERATING?
FUEL TRANSFER BEGIN WHEN MAIN TANK FUEL IS APPROXIMATELY 16000 KGS AND THE CENTER TANK PUMPS ARE OFF
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
WHAT IS THE MEANING OF A CROSSFEED VALVE?
ISOLATING LEFT AND RIGHT FUEL SYSTEM
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
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
FUEL TANK CAPACITIES?
MAIN TANKS APPROX 17000 BOTH AND CENTER TANK 67500 TOTAL 101.4/5 (-9)
FROM WHICH TANKS FUEL JETTISON IS ALLOWED?
FROM ALL THE TANKS
WHEN THE JETTISON AUTOMATICALLY STOPS?
WHEN FUEL VALUE IS JUST ABOVE THE “FUEL TO REMAIN” VALUE
WHAT IS THE MINIMUM FUEL TO REMAIN FOR JETTISON?
3900 KGS
