Type training · Airbus A320 family B1.1 · ATA 21

Airbus A320 B1.1: Air Conditioning and Pressurization (ATA 21)Type training questions & answers

Packs, zone temperature control, trim air, cabin pressure control, avionics and cargo ventilation.

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Sample Air Conditioning and Pressurization questions with answers

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

  1. 1.Where are the two A320 air conditioning packs installed?

    • A.Tail cone, aft of the pressure bulkhead
    • B.Under the cockpit, beside the avionics bay
    • C.Wing root area, forward of the MLG bay
    Show answer and explanation

    Correct answer: C. Wing root area, forward of the MLG bay

    The packs sit in the unpressurized belly at the wing root, forward of the main landing gear bay.

  2. 2.Which valve controls the airflow into an A320 pack and also acts as its shut-off valve?

    • A.The pack anti-ice valve
    • B.The pack flow control valve
    • C.The trim air pressure regulating valve
    Show answer and explanation

    Correct answer: B. The pack flow control valve

    The pack Flow Control Valve (FCV) adjusts the flow rate through the pack and is the pack shut-off valve.

  3. 3.On the A320 with classic zone control, which computer calculates the pack flow demand?

    • A.The Pack Controller
    • B.The Cabin Pressure Controller
    • C.The Zone Controller
    Show answer and explanation

    Correct answer: C. The Zone Controller

    The Zone Controller computes the flow demand and the required pack outlet temperature and sends them to both Pack Controllers.

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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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