A320 ATA 24 M 716

How is the BTC power supply provided when APU GEN or EXT PWR are available?. Through the Battery Bus. Through the GAPCU. Through the APU GEN. Through the IDG.

Why is the BTC ground path provided by the related Generator Control Unit (GCU)?. To enable automatic transfer to network faults. To inhibit the BTC close logic. To protect against Over Current. To control battery power.

In which situation are both BTCs closed?. APU GEN only. GEN 2 only. EXT PWR only. Normal operation.

The BTC power supply is provided by the Ground and Auxiliary Power Control Unit (GAPCU) when _____ are available. APU GEN. battery power. external power. IDG 1.

With only EXT PWR on, both BTCs should be closed to supply _____. AC BUS 1. AC BUS 2. AC BUS 1+2. IDG 1.

With IDG 2 only operation, both BTCs should be closed. IDG 2 supplies its own busbar and via the closed BTCs also _____. AC BUS 1. AC BUS 2. AC BUS 1+2. battery power.

APU GEN is one of the power sources with the lowest priority to supply the AC BUSES. True. False.

When APU GEN is the only power source, BTC 1 and 2 close to supply the AC power network. True. False.

With only EXT PWR on, both BTCs should be open to avoid parallel operation with the generators. TRUE. FALSE.

The Emergency Generator is activated via the blue hydraulic system only if the ________________. landing gear is compressed. landing gear is extended. aircraft is on the ground. aircraft is at cruising altitude.

If AC BUS 1 and 2 are lost above a given airspeed, the Ram Air Turbine (RAT) will automatically ________________. Retract. extend. turn off. Decrease speed.

In the case of Generator 1 LINE OFF, which component opens?. Generator Line Contactor (GLC) 1. Battery Contactors. External Power Contactor (EPC). Generator Control Unit (GCU).

The emergency generator is powered by the. blue hydraulic system. green hydraulic system. yellow hydraulic system. Red hydraulic system.

The Ground and Auxiliary Power Control Unit (GAPCU) interfaces only with the Centralized Fault Display Interface Unit (CFDIU). TRUE. FALSE.

The GAPCU can transmit GCU fault data to the CFDIU via ARINC 429 data bus. TRUE. FALSE.

Maintenance tests on the GAPCU and GCUs can be initiated in-flight for diagnostic purposes. TRUE. FALSE.

The Constant Speed Motor/Generator (CSM/G) operates at 50 Hz frequency. TRUE. FALSE.

What is the priority sequence for supplying the two normal AC BUSes (AC BUS 1 & AC BUS 2)?. Onside generator (IDG), external Power, APU GEN, offside generator. External Power, APU GEN, offside generator, onside generator (IDG). APU GEN, offside generator, onside generator (IDG), external Power. Offside generator, onside generator (IDG), external Power, APU GEN.

What is the purpose of the 115/26V AUTO TRANSFORMER in the AC distribution system?. Convert AC power to DC power. Supply power to the APU GEN. Connect AC ESS BUS to AC BUS 1. Convert 115V AC to 26V AC.

How is DC generation achieved in the aircraft's electrical system?. By Transformer Rectifiers (TRs). Through a generator driven by the APU. By converting AC power to DC power. Through an external power unit.

Which power source replaces a faulty main TR to supply the DC ESS BUS?. APU GEN. Battery 1. Battery 2. External Power.

What is the role of the Emergency Generator in the aircraft's electrical system?. replace the main engine generators. supply power during normal flight operations. connect AC BUS 1 and AC BUS 2 in paralle. provide power in case of failure of all main generators.

Which component is responsible for converting 115 volts to 26 volts for the sub-busbar?. Transformer Rectifiers (TRs). AC ESS SHED BUS. Engine Generators. Static Inverter.

What is the purpose of the Static Inverter in the electrical system?. Supply AC BUS 1 and AC BUS 2. Replace faulty main TR units. Convert DC to AC power. Supply power to the galley circuits.

The STATic INVerter connected to battery 1 supplies the AC __________ BUS. AC BUS 1. DC ESS BUS. AC ESS BUS.

The AC transfer circuit allows generators to be connected in parallel on the same bus. TRUE. FALSE.

The AC ESSential BUS can be supplied by AC BUS 2 if AC BUS 1 fails. TRUE. FALSE.