Fuel

Question 1

Fuel system stores fuel, controls and monitors quantity of fuel, supplies

Answer 1

Fuel to engines and APU, allows fuel jettison, controls refueling and defueling and controls forward and aft transfer of fuel to maintain CG within limits.

Question 2

Fuel is stored in the wings, center section and

Answer 2

Trimmable Horizontal Stabilizer THS, and wings each have an inner and outer tank

Question 3

Wings have an inner outer tank. Each inner tank is divided

Answer 3

Into two parts that have one collector cell that maintains a reservoir for the fuel booster pumps and provides negative G protection to feed the engines.

Question 4

Each collector cell is maintained full and contains

Answer 4

Approximately 1,000kg / 2,200 lbs of fuel

Question 5

Fuel system is controlled by

Answer 5

two Fuel Control and Monitoring Computers FCMC

Question 6

FCMC calculates fuel quantity by:

Answer 6

Volume, density, horizontal stabilizer angle, fuel electrical characteristics and aircraft attitude

Question 7

FCMC uses information from fuel sensors to control transfers and to provide warnings independently of fuel indication system from:

Answer 7

Low level sensors; high level sensors; vent surge tank level sensors

Question 8

FCMC calculates GW and GWCG based on Zero Fuel Weight Center of Gravity and

Answer 8

Zero Fuel Weight entered by the crew.

Question 9

There are two main fuel pumps and one

Answer 9

Standby to supply fuel from inner tanks

Question 10

A main or standby fuel pump can supply

Answer 10

Any engine

Question 11

ECAM FUEL erroneous value by more than

Answer 11

136kg/ 300 lbs

Question 12

APU is fed from ENG 1 collector box (in the left Inner Tank) through APU FWD pump and APU ISOL valve when:

Answer 12

On ground after 2 min (expect during Trim Tank refueling); in flight below FL 255; above FL 255; when Trim Tank is empty.

Question 13

During ELEC EMER CONFIG, aircraft electrically powered by EMER GEN which is powered by RAT – crossfeed valve automatically

Answer 13

Opens and the left pump remains powered

Question 14

Both side couplings used, refueling time at max pressure of

Answer 14

50 psi is 33 minutes

Question 15

Refueling / defueling can be supplied either by External power,

Answer 15

APU generator online, the batteries

Question 16

OVERFLOW light in Amber when

Answer 16

Vent tank sensor is covered in fuel.

Question 17

REFUEL END flashes when refueling is aborted,

Answer 17

High level test negative, or when imbalance greater than 3,000 kg / 6,600 lbs

Question 18

Max allowable wing fuel imbalance – inner (outer balanced) / Auth Asymmetry = Full / 2,900 kg / Half

Answer 18

4,800 kg / 7,500 kg / 7,500 kg

Question 19

Outer tanks (inner balanced) – Tank content (heavier tank) / Auth Asymmetry = Full / 1,480kg / 2,400 kg :

Answer 19

1,580 kg / 1,740 kg – 1,730kg

Question 20

Fuel Max temperature

Answer 20

+55º C

Question 21

Minimum fuel for takeoff

Answer 21

5,200 kg / 11,460 lbs

Question 22

Output rate is approximately

Answer 22

1,000 kg / 2,200 lbs during fuel jettison

Question 23

Fuel is simultaneously jettisoned from

Answer 23

the inner and center tanks

Question 24

For jettison all main and standby fuel pumps run and

Answer 24

The crossfeed valve opens

Question 25

Jettison – fuel jettison begins when crew selects

Answer 25

JETTISON ARM and ACTIVE pbs to ON