Type training · Airbus A320 family B1.1 · ATA 24

Airbus A320 B1.1: Electrical Power (ATA 24)Type training questions & answers

IDGs and GCUs, APU and external power, bus tie logic, TRs, batteries, static inverter and emergency generation.

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Sample Electrical Power questions with answers

Three questions from the free preview. Think of your answer first, then open the explanation.

  1. 1.What is the rated output of each A320 engine-driven generator?

    • A.115/200 V, 3-phase, 400 Hz, 90 kVA
    • B.115/200 V, 3-phase, 400 Hz, 60 kVA
    • C.28 V DC, 400 A, single channel
    Show answer and explanation

    Correct answer: A. 115/200 V, 3-phase, 400 Hz, 90 kVA

    Both IDG generators and the APU generator give 115/200 V three-phase 400 Hz AC at 90 kVA.

  2. 2.What is the rated output of the A320 emergency generator (CSM/G)?

    • A.1 kVA
    • B.90 kVA
    • C.5 kVA
    Show answer and explanation

    Correct answer: C. 5 kVA

    The RAT-powered Constant Speed Motor/Generator gives 115/200 V, 400 Hz, 5 kVA continuously.

  3. 3.How does the A320 emergency generator get its drive?

    • A.Its own small air turbine in the RAT
    • B.A gearbox on the APU
    • C.A hydraulic motor on the blue system
    Show answer and explanation

    Correct answer: C. A hydraulic motor on the blue system

    The CSM/G is a hydraulic motor driving a generator, fed from the blue system that the RAT pressurizes.

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Part of the Airbus A320 family B1.1 type course

One chapter of the Airbus A320 family B1.1 type course question bank, for the A318–A321 with IAE V2500-A5 engines, written in our own words for revision. Your type course and the aircraft maintenance manual stay the authority: limits and procedures can differ between airframes and operators.

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