Auxillary Power Unit(APU) Flashcards
1
Q
APU description
A
2
Q
How much power does the APU generator provide?
A
75 KVA, 3-phase, 115 VAC, electrical power at a constant 400Hz
3
Q
APU Fuel control unit and Filter Manifolds
A
4
Q
APU Starter:
A
5
Q
APU Air Oil Cooler
A
6
Q
APU Ignition Unit
A
7
Q
APU Surge Control Valve
A
8
Q
APU Bleed Air Valve
A
9
Q
APU main components:
A
10
Q
APU operation
A
11
Q
APU Electronic Control Unit(ECU)
A
12
Q
APU Inlet door position
A
13
Q
APU Accessory Gearbox
A
Operates the following components:
- Generator
- Fuel control unit
- Starter
14
Q
Where is the APU fuel supplied from
A
From the left tank through the APU fuel line and fuel shutoff valve.
15
Q
APU Oil System
A
16
Q
APU Start Power Sources
A
17
Q
APU Shutdown Sequence
A
18
Q
APU External controls
A
There are two APU shutdown switches:
