Fuel

Question 1

WHERE IS THE REFUEL/DEFUEL PANEL?

Answer 1

RH MAIN LANDING GEAR FAIRING

Question 2

WHAT POWER SOURCE SUPPLIES THE REFUEL/DEFUEL PANEL?

Answer 2

DC GROUND HANDLING TRANSFER BUS

Question 3

WITH THE BAT SWITCH OFF AND NO EXTERNAL POWER, WHAT IS REQUIRED TO POWER THE
REFUEL/DEFUEL SYSTEM?

Answer 3

OPEN THE REFUEL/DEFUEL DOOR

Question 4

REFUEL/DEFUEL SYSTEM:

Answer 4

IN CASE OF FQI FAILURE DETECTION, THE HIGH LEVEL IS ACHIEVED BY A LEVEL SENSOR
INSTALLED AT THE BOTTOM OF EACH SURGE TANK

B) THE WING TANKS CAN ALSO BE REFUELLED BY GRAVITY

C) THE SYSTEM MAY BE USED TO DEFUEL THE A/C BY APPLYING A 0.77 BAR (11 PSI)
SUCTION TO THE CONNECTOR AND OPENING THE TANK REFUEL VALVES

Question 5

WITH THE REFUEL/DEFUEL PANEL MODE SELECTOR SWITCH AT REFUEL POSITION, HOW ARE
THE REFUEL VALVES OPERATED?

Answer 5

BOTH OF THESE ANSWERS ARE POSSIBLE

BY AUTOMATIC LOGIC IF THE REFUEL VALVES SWITCHES ARE SET ON NORM

BY MANUAL SELECTION OF THE REFUEL VALVE SWITCHES TO OPEN OR SHUT

Question 6

WHEN THE REFUEL/DEFUEL PANEL “FQI TEST” PB IS DEPRESSED, WHAT ARE THE CORRECT
INDICATIONS?

Answer 6

DISPLAY ALL 8 ON THE REFUEL/DEFUEL PANEL AND COCKPIT FUEL QUANTITY GAUGES

BLUE LH AND RH REFUEL VALVES SHUT DOWN PLUS FWS IS ACTIVATED

Question 7

FUEL QUANTITY INDICATING SYSTEM:

Answer 7

THE LEFT AND RIGHT FUEL QUANTITY INDICATED CHANNELS ARE INDEPENDENT

IN A LEVEL ATTITUDE (WITHIN -3° AND +1° OF PITCH AND +/-2° OF ROLL), THE
ACCURACY OF THE 5 PROBES FUEL QUANTITY INDICATING SYSTEM IN EACH TANK IS +/- 1% NEAR ZERO, +/-3% AT FULL

Question 8

HOW MANY MAGNETIC LEVEL INDICATORS ARE LOCATED ON THE BOTTOM OF EACH FUEL
TANK?

Answer 8

TWO

Question 9

FUEL QUANTITY INDICATORS DISPLAY:

Answer 9

FUEL MASS REMAINING ON BOARD

Question 10

THE ELECTRICAL PUMP AND THE JET PUMP ARE LOCATED:

Answer 10

BOTH IN A FEEDER DEPARTMENT, TO AVOID UNCOVERING THE PUMPS IN CASE OF
VERTICAL OR LATERAL LOADS

Question 11

ENGINE FEED DESCRIPTION:

Answer 11

NEITHER THE ELECTRICAL PUMP NOR THE JET PUMP CAN CIRCULATE FUEL IN REVERSE DIRECTION THROUGH THE OTHER

EXCESS FLOW (FUEL NOT ABLE TO FLOW THROUGH THE LP VALVE TOWARDS THE HMU)
FROM EITHER THE ELECTRICAL PUMP OR JET PUMP, RETURNS TO AN INLET SUPPLYING
THE FEEDER COMPARTMENT INSURING THAT IT IS ALWAYS FULL

Question 12

IN NORMAL OPERATION, THE ELECTRICAL PUMP IN EACH TANK IS USED ONLY TO:

Answer 12

START THE ENGINE, WHICH PRESSURISES THE JET PUMP VIA THE HMU HP FUEL PUMP
FOR SUBSEQUENT PRESSURISATION OF THE FUEL SYSTEM

Question 13

THE TWO FUEL PUMP PBs CONTROL WHICH OF THE FOLLOWING?

Answer 13

AUTOMATIC STARTING AND STOPPING FUNCTION OF THE RELATED ELECTRICAL PUMP
WHEN SELECTED IN (DEPRESSED)

CLOSURE OF THE RELATED MOTIVE FLOW VALVE, THUS SHUT-OFF OF THE RELATED JET
PUMP WHEN SELECTED OFF (RELEASED)

Question 14

THE ELECTRICAL PUMP NORMALLY RUNS ANYTIME THE RELATED PUMP PB IS IN
(DEPRESSED) AND:

Answer 14

RETURN PRESSURE FROM THE HMU IS BELOW 5 PSI (500MB)

DURING CROSS-FEED OPERATION, X FEED PB IN (DEPRESSED)

Question 15

WHEN DOES THE “MOTIVE FLOW VALVE” OPEN?

Answer 15

ANYTIME THE RELATED PUMP PB IS IN (DEPRESSED), AND PRESSURE FROM THE HMU IS
SUFFICIENT TO OPEN IT

Question 16

JET PUMP IS ACTIVATED BY:

Answer 16

HP FUEL FROM ENGINE HMU

Question 17

IN THE WHOLE FLIGHT ENVELOPE, HOW MANY ENGINES CAN ONLY ONE ELECTRIC FUEL
PUMP SUPPLY?

Answer 17

ONLY ONE

Question 18

THE FUEL TANK MAXIMUM CAPACITY IS:

Answer 18

2868 LT (758 US GAL) PER TANK, 5736 LT (1516 US GAL) TOTAL

2250KG (4960 LB) PER TANK, 4500KG (9920 LB) TOTAL (0.785)

Question 19

A JET PUMP FAILURE IS DETECTED BY:

Answer 19

ILLUMINATION OF RUN GREEN LIGHT IN THE RELATED ELECTRICAL FUEL PUMP PB

Question 20

ENGINE RUNNING, THE ILLUMINATED LIGHT “FEED LO PR” ASSOCIATED WITH FWS
ACTIVATION CAN MEAN:

Answer 20

PRESSURE DROPS BELOW 5 PSI OR FUEL STARVATION

Question 21

TO FEED ENGINE 1 WITH TANK 2, LH AND RH FUEL PUMPS RUNNING, YOU MUST:

Answer 21

OPEN THE CROSS-FEED VALVE AND SELECT ENGINE 1 FUEL PUMP PB OFF

Question 22

DURING CROSS-FEED OPERATION, HOW MANY PUMPS ARE RUNNING?

Answer 22

TWO, ELECT AND JET PUMP PUMPS ON THE SIDE WITH THE MOST FUEL

Question 23

IF NO GREEN “FLOW BAR” IS VISIBLE IN THE “X-FEED” PB, WHAT DOES IT MEAN?

Answer 23

CROSS-FEED VALVE IS IN TRANSIT, OR A FAULT EXISTS

Question 24

HOW IS THE “LP VALVE” AT THE OUTLET OF EACH TANK CONTROLLED?

Answer 24

ELECTRICALLY BY THE RELATED FIRE HANDLE (DC BUS 1 OR 2 FOR THE MOTOR 1, DC EMER BUS OR HOT EMER BAT BUS FOR THE MOTOR 2)

Question 25

“LO LVL” AMBER LIGHT AND FWS ACTIVATION MEANS THAT:

Answer 25

FUEL QUANTITY BECOMES LOWER THAN 160KG AND THE CORRESPONDING ELECTRIC
PUMP RUNS AUTOMATICALLY