Electrical Flashcards
A FAULT light in the GALY & CAB pb appears when any generator load is above 100% of its rated output.
True
When external power is connected to the aircraft, a green AVAIL light indicates:
External power is connected with acceptable voltage and frequency.
The RAT automatically deploys when:
Power is not available for AC Bus 1 and AC Bus 2 and airspeed greater than 100 knots.
You can deploy the RAT and activate the emergency generator using the MAN ON pb.
True
The AVAIL light illuminated on the EXT PWR pb means:
Voltage and frequencies are acceptable
What electric source has priority with the engines off, APU available and the EXT PWR pb switch is ON.
EXT PWR
Disconnecting an IDG:
Renders the associated electrical generator inoperative
The RAT OUT memo appears on the E/WD to indicate:
The RAT has deployed.
The RAT automatically deploys when:
Power is not available for AC Bus 1 and AC Bus 2 and airspeed greater than 100 knots.
You can deploy the RAT and activate the emergency generator using the MAN ON pb.
True
The APU generator always takes priority over an engine driven generator and/or external power.
False
The APU driven generator:
Can be used as the sole source of electrical power on the ground.
When the APU generator is on and no other AC sources are available, the APU can power the entire electrical system on the ground.
True
AC ESS Bus ensures:
Essential equipment will remain powered during an electrical emergency
DC ESS Bus ensures that essential DC powered equipment remains operational during an electrical emergency.
True
On battery power only, the AC and DC ESS SHED Busses are shed to conserve battery life.
True
The indication highlighted is displayed when the Emergency Generator:
Is not in use
The “RAT OUT” memo on the E/WD indicates:
The RAT has deployed
The SMOKE light illuminates in GEN 1 LINE pb when:
Smoke is detected in the avionics ventilation duct.
AC Bus 1 normally powers:
AC ESS Bus and TR 1
AC Bus 2 normally powers:
TR 2
