Electrical Flashcards
1
Q
Results of a BPT
A
Auto pop up of SFD Possible no terrain on SVS Possible both PFD's using the same RA's Emergency batteries ON Stabilizer Fail CAS
2
Q
Function of the SSPC or SPDS?
A
Controls various AC/DC loads throughout the airplane
3
Q
Power sources for the EMERGENCY AC BUS?
A
L Main AC, RAT
4
Q
Main batteries provide how many minutes of power?
A
16, includes 2 APU starts.
5
Q
AUX DC Busses are shed when?
A
Single generator in the air RAT generator operating Battery only Loss of one or both hydraulic systems (GAC confirms this answer is incorrect JH) AUX TRU powers another DC bus
6
Q
In the TR mode how many amps can a main battery provide?
A
40 amps
7
Q
AUX TRU function is to provide power where?
A
- L/R AUX DC busses
- Ess before main
- Left before right
8
Q
Battery in TR mode when doing what? Main AC busses are powered.
A
Battery lights ON:
Running the AUX pump
Starting the APU
Providing power to the essential DC busses
9
Q
Ground service bus turns on what with any of the four switches?
A
Beacon A light on the: overhead panel refuel panel aft bay ground service panel Both SMC's #2 MCDU
10
Q
If ground service bus is powered in flight why is the light not on?
A
It is being powered by its normal source, the right main DC.
11
Q
ANN test does not test which lights?
A
C cabin pressure counterclockwise 6,000' down. O oxygen light F fire handles F fuel run switches E emergency and mic buttons E ELT light
