Type training · Boeing 777 B2 · ATA 25, 35, 38

Boeing 777 B2: Equipment, Oxygen, Water and Waste (ATA 25, 35, 38)Type training questions & answers

Seats and cargo handling, evacuation signal, oxygen, water quantity and waste tank sensors.

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Sample Equipment, Oxygen, Water and Waste questions with answers

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

  1. 1.What powers the 777 captain and first officer seats?

    • A.The 3-phase 115V AC service bus
    • B.The 1-phase 115V AC standby bus
    • C.The 3-phase 115V AC utility bus
    Show answer and explanation

    Correct answer: C. The 3-phase 115V AC utility bus

    The pilot seats are powered from the three-phase 115V AC utility bus. Ref AMM 25-10-00.

  2. 2.Which statement about the pilot seat emergency stop switch is NOT correct?

    • A.It removes all power from the seat
    • B.It cuts power to the horizontal circuits
    • C.It cuts power to the vertical circuits
    Show answer and explanation

    Correct answer: A. It removes all power from the seat

    The emergency stop switch removes power from the horizontal and vertical drive circuits, not from the whole seat. Ref AMM 25-10-00.

  3. 3.Which two kinds of electrical outlet are provided for ground and in-flight equipment?

    • A.115V AC 60 Hz and 28V DC
    • B.115V AC 400 Hz and 28V DC
    • C.115V AC 50 Hz and 28V DC
    Show answer and explanation

    Correct answer: B. 115V AC 400 Hz and 28V DC

    The outlets supply single-phase 115V AC at 400 Hz and 28V DC. Ref AMM 25-20-00.

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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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