Electrical Flashcards
The minimum battery voltage to start the APU is
A 19 Volts
B 23 Volts
C 28 Volts
B 23 Volts
An illuminated GRD power available light
indicates
A the AC ground power is powering the both transfer buses
B the AC ground power is connected to the aircraft and is bypassing the battery
C the AC ground power is connected to the aircraft and meets aircraft quality standards
C the AC ground power is connected to the aircraft and meets aircraft quality standards
In-flight and illuminated Amber TR unit light indicates
A TR1 or TR2 or TR3 has failed
B TR1 or TR2 and TR3 have failed
C TR1 and TR2 and TR3 has failed
B TR1 or TR2 and TR3 have failed
And illuminated STANDBY PWR OFF light indicates one or more of which buses are underpowered
A AC standby bus and DC standby bus
B battery bus
C all answers are correct
C all answers are correct
Moving the GEN1 or the GEN2 to switch to ON
A connect the IDG to the transfer bus
B disconnect the power source and closes the generator circuit breaker
C all answers are correct
C all answers are correct
When the APU is running and the extinguished APU GEN OFF BUS light indicates
A The APU is supplying power to the AC transfer bus
B the APU is not supplying power to the AC transfer bus
C the previous power source has been disconnected
A the APU is applying power to the AC transfer bus
Which light when illuminated Amber indicates a failure in the DC or standby electrical system
A ELEC
B TR UNIT
C BAT DISCHARGE
A ELEC
And illuminated DRIVE light indicates
A high temperature in the IDG
B low quantity in the engine
C low pressure in the IDG
C low oil pressure in the IDG
An illuminated BAT DISCHARGE light indicates
A the battery has failed
B thermal runaway
C excessive battery discharge
C excessive battery discharge
A fully charged battery has sufficient capacity to provide electrical power for a minimum of
A 30 minutes
B 45 minutes
C 60 minutes
A 30 minutes
