Fuel System

Question 1

Each wing tank consists of … ?

Answer 1

Each wing tank consists of an outer
tank and a collector tank

Question 2

he center tank contains two electrically driven fuel pumps
which transfer fuel to … ? the collector tanks

Answer 2

The collector tanks

Question 3

The collector tanks contains how many pumps

Answer 3

Two electrically driven fuel pumps which supply fuel to engines and APU

Question 4

Tank ventilation to ambient air takes place via … ?

Answer 4

Vent valves or, if blocked, via sniffle valves

Question 5

When a collector tank is full, the excess fuel flows where ?

Answer 5

Into the respective outer tank

Question 6

With one centre tank pump operating a normally closed transfer valve will open to allow what to occur ?

Answer 6

Fuel transfer from the operating pump to both collector tanks

Question 7

For type G aircraft types fuel transfer is automatically controlled when ……… and engine fuel flow exceeds …….kg/hr ?

Answer 7

Either center tank pump is switched ON and the AUTO FEED push button is blank and engine fuel flow exceeds 1135 kg/hr ?

Automatic fuel transfer will also occur when the fuel quantity of both w

Question 8

For type A and T aircraft types fuel transfer is automatically controlled
when ?

Answer 8

Automatic fuel transfer takes place only in flight when the fuel quantity in the wing tanks falls below a predetermined value.

Question 9

If the autofeed control fails, can fuel transfer fromthe centre to the collector tanks still occur ?

Answer 9

Yes - it can be manually controlled when the AUTO
FEED push button is depressed to MAN

Question 10

In normal operation, the LH collector tank
supplies ?

Answer 10

Engine 1 and the APU

Question 11

Each pump in the collector tank has sufficient capacity to supply one engine in …(1)… or both engines in …(2)… thrust conditions ?

Answer 11

1. In all thrust conditions
2. In climb and cruise thrust conditions

Question 12

A fuel asymmetry alert will be presented if the difference between the contents of the wing tanks is more than (1) kgs?

The alert will disappear when the difference in wing tank contents is reduced to below approximately (2) kgs ?

Answer 12

1. 350 kgs
2. 250 kgs

Question 13

What do the 2 dots on the Fuel Totaliser indicate ?

Answer 13

With pointer at first dot both wing tanks are full

With pointer at second dot both wing tanks and center tank are
full