Aircraft Systems Part 5(Fuel Systems)

Question 1

Fuel tanks are vented for the following reasons:

1. To maintain _________ pressure within the tanks
2. To prevent __ ____ (vacuum formation within the tanks)
3. To allow fuel _______ due to _________ because of increased temperatures
4. To vent ______

Answer 1

1. To maintain atmospheric pressure within the tanks
2. To prevent air locks (vacuum formation within the tanks)
3. To allow fuel overflow due to expansion because of increased temperatures
4. To vent vapour

Question 2

Unusable fuel will result due to -

Answer 2

The fuel for the engine is not taken from the bottom of the tank, to avoid dirty fuel.

Question 3

The type of fuel delivery system for a high wing?

Answer 3

Gravity feed system

Question 4

The type of fuel delivery system for a low wing?

Answer 4

Pressure or pump feed system.

Question 5

The two types of pumps provided with a pressure or pump feed system.

Answer 5

Engine driven pump, and an auxiliary electrical pump

Question 6

The booster pump(auxiliary fuel pump) have two settings, which are?

Answer 6

the low setting is used when operating at high altitudes to keep fuel pressure on the suction side of the EDP. If this pressure were not maintained, fuel would boil at altitude causing vapour locks

The high setting is used as an alternative to supply fuel when the EDP fails.

Question 7

To avoid condensation, fuel tanks should be filled -

Answer 7

immediately after a flight

Question 8

Capacitance type fuel system always indicates in -

Answer 8

Mass