Fuel

Question 1

<p>Fuel can be suction feed through Main tanks </p>

Answer 1

<p>2 &amp; 3 (FCOM 12.20.2)</p>

Question 2

Fuel temperature is measured in each respective tank. True or False

Answer 2

False -Fuel temperature is measured in main tank 1 and displays on primary EICAS (FCOM 12.20.1)

Question 3

Each reserve tank contains two transfer valves when open, gravity feed to

Answer 3

main tank 2 or 3 (FCOM 12.20.9)

Question 4

Apu fuel comes from

Answer 4

APU fuel is normally supplied from AFT main tank 2

Question 5

Fuel can be jettison from____.

Answer 5

all fuel tanks (FCOM 12.20.11)

Question 6

When does jettison begin, after arming the Jettison logic?

Answer 6

Fuel Jettison NOZZLE Valve Switches ON (FCOM 12.20.10)

Question 7

If the flow bar is not in view and the valve light is extinguished on a fuel crossfeed valve switch, what is the position of the crossfeed valve?

Answer 7

The switch is off, and the valve close.

Question 8

What is the indication if the CWT pump switches are OFF and there is no fuel in the tank?

Answer 8

Nothing ()

Question 9

What does the EICAS caution message FUEL QTY LOW mean?

Answer 9

Fuel quantity 900 kgs or less in one or (FCOM 12.30.2)

Question 10

What is the indication if a main tank fuel pump fails?

Answer 10

EICAS Message+ LOW pressure light (CBT– FUEL- FAILURES )

Question 11

When will the FMC message “FUEL DISAGREE - PROG 2/2” be displayed?

Answer 11

If the FMC calculates a large (4,080kg) difference between the total sensed fuel quantity and calculated (11.32.4)

Question 12

Crossfeed valves 2 and 3 automatically close during?

Answer 12

The FSMCs close crossfeed valves 2 and 3 when flaps extend to takeoff position (FCOM 12.20.11)

Question 13

Which tanks are equipped with override jettison pumps?

Answer 13

Main tanks 2,3,center wing tank (FCOM 12.10.1)

Question 14

Which pump has to be switched on when the APU is started?

Answer 14

None- all automatically (CBT- FUEL- Normal operation)

Question 15

What does the ambler VALVE light in a fuel X-FEED switch tell you?

Answer 15

disagreement- crossfeed valve not in system logic commanded position (FCOM 12.10.1)

Question 16

When does the > FUEL TEMP LOW message appear?

Answer 16

Fuel temperature -37°C or less (FCOM 12.30.4)

Question 17

What happens in the fuel system when takeoff flaps are extended?

Answer 17

The FSMCs close crossfeed valves 2 and 3 when flaps extend to takeoff (FCOM 12.20.11) the flow bars remain in view

Question 18

How is fuel transferred out of reserve tanks 1 & 4?

Answer 18

Gravity (FCOM 12.20.9)

Question 19

When will the FUEL/TANK EICAS message appear?

Answer 19

With crossfeed valve 1 or 4 open: on the ground after fueling, after initial electrical power stablished, or after CMC ground test; main tank 2 quantity less than or equal to main tank 1 quantity plus 500 kgs and main tank 3 quantity less than or equal to main tank 4 quantity plus 500 kgs, or in flight, main tank 2 quantity equal to or less than main tank 1 quantity, or main tank 3 quantity equal to or less than main tank 4 quantity. Message inhibited during jettison. Message inhibited on the ground withtakeoff poweron the ground after fueling, after initialelectrical power established, or afterCMC ground test; main tank 2 quantityless than or equal to main tank 1quantity plus 500 kgs and main tank 3quantity less than or equal to main tank4 quantity plus 500 kgs, orin flight, main tank 2 quantity equal toor less than main tank 1 quantity, ormain tank 3 quantity equal to or lessthan main tank 4 quantity.Message inhibited during jettison.Message inhibited on the ground withtakeoff power (FCOM 12.30.4)