Boeing 777 Electrics
1 / 15
On ground no power connected to the airplane. Which items will be powered if you push the BATTERY switch ON?
2 / 15
The main battery provides standby power to the following:
3 / 15
How many main AC power sources are required to maintain the entire plane AC electrical load?
4 / 15
Which one of the following is not a reason for the backup electrical system to automatically power one or both transfer busses?
5 / 15
What is the primary power source for 'fly-by-wire'?
6 / 15
Bus tie relays, controlled by BUS TIE switches, isolate or parallel the right and left main busses. When both BUS TIE switches are set to AUTO, the bus tie system operates automatically to maintain power to both main busses.
7 / 15
What is the correct source order for powering left and right main busses in flight?
8 / 15
What provides DC power on the B777?
9 / 15
Which one of the following is not true about the Primary External Power?
10 / 15
Which one of the following is not true about the ram air turbine (RAT) generator?
11 / 15
Which bus operates only on the ground?
12 / 15
How can you power the ground handling bus before shutdown if no external power is available?
13 / 15
Will the IDG disconnect automatically for high temperature?
14 / 15
You have a cold airplane (no power connected). Which items will be powered if you push the BATTERY switch ON?
15 / 15
The standby electrical system consists of:
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