Fuel

Question 1

If centre tank has been used how is any remaining fuel scavenged?

Answer 1

With No1 tank FWD pump ON, the cntre tank scavenge pump will operate. Will start with No1 approx at 1/2 and contents below 453kg in centre

Question 2

In the event that the refuelling panel cannot be powered how can the aircraft be refuelled?

Answer 2

Bypass switch on panel and buttons on refuel valves.

Question 3

If the fuel guaging system is inop, how would you measure fuel?

Answer 3

Measuring sticks (6 in mains, 4 in centre)

Question 4

If, when the refuelling panel door is opened, the refuelling panel does not power up, how can the panel be powered to refuel the aircraft?

Answer 4

Select the refuelling indication test switch to “FUEL DOOR SWITCH BYPASS”

Question 5

With all pumps selected the centre tank will feed first, why?

Answer 5

The centre tank pumps run at a higher pressure than the main tank pumps

Question 6

In the event that both pumps fail in thee same tank, how can fuel be delivered to the engine on that side?

Answer 6

The engines can suction feed, but air in the fuel could cause a thrust deterioration or flame out at high altitude.

Question 7

UFI Fitted - Centre Fuel Pump switches ON, when will the master caution illuminated in relation to centre tanks in relation to LOW PRESSURE lights

Answer 7

A master caution will illuminate only if both Centre Tank low pressure lights illuminate

Question 8

In case of fuel pump failure, which tanks can the engines suction feed from?

Answer 8

Main tanks only

Question 9

Max main tank quantity

Answer 9

3915kgs

Question 10

Max centre tank quantity

Answer 10

13066kgs

Question 11

Total fuel quantity?

Answer 11

20896kgs

Question 12

IMBAL fuel will appear when?

Answer 12

453kgs

It goes off when the imbalance is within 91kg

Question 13

LOW fuel indication will appear when?

Answer 13

907kgs

Question 14

CONFIG fuel indication will appear when?

Answer 14

More than 726kgs in centre tank and fuel pumps off