Fuel (28)

Question 1

How many fuel tanks are there?

Answer 1

2

Question 2

At what level is the interconnection between the 2 tanks?

Answer 2

160kg

Question 3

What draws fuel intro the engines?

Answer 3

The engine driven fuel pumps

Question 4

How are the fuel ventilation systems protected from flame propagation?

Answer 4

Via flame arrestors

Question 5

How many probes are in each fuel system and where does it send data?

Answer 5

2
AMMC

Question 6

Is there an independent low level sensor?

Answer 6

YES
optical sensor switch

Question 7

What is the fuel capacity?

Answer 7

888Kg
(useable)

Question 8

How much unusable fuel is there

Answer 8

8kg

Question 9

At what level is the interconnect or and what is its purpose?

Answer 9

160kg total
To concentrate the fuel around the inlet

Question 10

How much of the suction feed screen can be blocked when operating at Max Op Alt?

Answer 10

50%

Question 11

How are the Fuel ShutOff valves controlled?
(2)

Answer 11

EDCU
When Fire suppression ARMED

Question 12

What is the purpose of the fuel Snorkel?

Answer 12

Minimised fuel spillage in the event of an aircraft rollover

Question 13

How long and what temp can the flame arrest or protect the fuel tank for?

Answer 13

800°C for 5 mins

Question 14

When is [1(2) FUEL LOW] triggered?

Answer 14

51kg
(10 mins)

Question 15

What does [PMS NOT OFF] signify on the EDCU Fuel page?

Answer 15

Pilot tries to close the SOV with the engine Power Management Switch (PMS) for the relevant engine in the FLIGHT or IDLE position?

Question 16

What does [ENG 1(2) FIRE ARM] posted in the EDCU Fuel page signify?

Answer 16

Fire system ARMED

Question 17

What does [SOV DISCREPANCY] signify in th EDCU Fuel Page?

Answer 17

When the reported position of the valve does not match the commanded position of the valve

Question 18

What does [CMD NOT EXECUTED] power in the fuel management page signify?

Answer 18

The AMMC does not acknowledge the EDCU command to open or close a SOV

Question 19

What 3 conditions are needed for operation of a sample/drain valve?

Answer 19

• ENgine SOV closed
• WOW
• Sample valve switch operation

Question 20

On power-up what position are the SOVs in?

Answer 20

The last known position

Question 21

What happens to the fuel quantity display on the PFD when both tanks are below 51kg?

Answer 21

Display changes to amber

Question 22

What does three amber dashes signify on the Fuel Quantity indicator on the PFD?

Answer 22

Loss of probe data.

Question 23

Under OEI, how is the fuel in the failed engine displayed?

Answer 23

Greyed out 160kg

Question 24

Are there any airframe mounted fuel filters?

Answer 24

No - The one at the suction valve is only a screen
The fuel is filtered at the engine only

Question 25

Can you identify a failed fuel probe?

Answer 25

Yes - via Fuel Synopitc Page

Question 26

How is the aircraft refuelled?

Answer 26

Gravity
LHS of Aircraft

Question 27

When at 160kg (collector cell level), how much flight time is available?

Answer 27

50 minutes AEO
35 minutes OEI

Question 28

In level flight and when the fuel quantity equals the unusable fuel quantity, what will the fuel quantity read?

Answer 28

000

Question 29

What kind of sensor is the Low Level Sensor?

Answer 29

Optic Based

Question 30

Where is the Fuel Control Unit located?

Answer 30

On the Reduction Gearbox