Type training · Boeing 777 B2 · ATA 29, 32

Boeing 777 B2: Hydraulics and Landing Gear (ATA 29, 32)Type training questions & answers

HYDIM cards, pump control, RAT, sensors, PSEUs, gear indication, autobrake and steering.

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Sample Hydraulics and Landing Gear questions with answers

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

  1. 1.Before pressurizing the 777 hydraulic systems with the pumps, what must you make sure of?

    • A.No fluid transfer between center and right
    • B.Reservoirs not over- or underfilled
    • C.Enough main tank fuel for cooling
    Show answer and explanation

    Correct answer: C. Enough main tank fuel for cooling

    The hydraulic heat exchangers are in the main fuel tanks, so there must be enough fuel to cool them. Ref AMM 29-00-00.

  2. 2.Two of the four HYDIM cards control the functions for which system?

    • A.The center system
    • B.The left system
    • C.The right system
    Show answer and explanation

    Correct answer: A. The center system

    Two HYDIM cards serve the center system; the left and right systems have one each. Ref AMM 29-10-00.

  3. 3.What happens to hydraulics when an engine fire switch is operated?

    • A.The related pumps are switched off
    • B.EDP supply shuts off; it depressurizes
    • C.The pump outlet is ported to return
    Show answer and explanation

    Correct answer: B. EDP supply shuts off; it depressurizes

    The fluid supply to the related EDP shuts off and the pump depressurizes. Ref AMM 29-10-00.

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Part of the Boeing 777 B2 type course

One chapter of the Boeing 777 B2 type course question bank, for the 777 avionics, 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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