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Installation Techniques Flashcards

7 cards from real AM practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Installation Techniques flashcards as text
  1. What is the correct procedure for installing a cotter pin through a castle nut and bolt?

    Answer: Bend one leg of the cotter pin over the bolt end and the other leg back along the nut flat

    One leg is bent over the bolt end and the other is bent back along the flat of the castle nut to secure the pin and prevent interference with adjacent structure.

  2. When installing rivets in a repair patch over an existing skin crack, what is the minimum edge distance from the rivet centerline to the edge of the patch material?

    Answer: 3 times the rivet diameter

    Standard rivet edge distance is a minimum of 2D (two times rivet diameter) from center to edge, but repair patches typically require 2.5D minimum per AC 43.13-1B.

  3. A technician is installing an ELT in accordance with the aircraft maintenance manual. The ELT antenna must be installed to meet which requirement?

    Answer: Antenna orientation must be as vertical as practicable and have a clear signal path

    ELT antennas must be oriented as vertically as practicable and installed to provide an unobstructed signal transmission path per TSO-C91a requirements.

  4. During installation of a turbine engine fuel nozzle, the technician notices the nozzle threads are galled. What is the correct action?

    Answer: Replace the nozzle; galled threads compromise sealing integrity and torque values

    Galled threads on a fuel nozzle compromise both the sealing surface and accurate torque application; the part must be replaced with a serviceable unit.

  5. When installing aircraft windows using structural adhesive, what is the critical preparation step that directly affects bond strength?

    Answer: Abrading and chemically priming both mating surfaces per manufacturer specifications

    Surface preparation — abrading and applying the specified primer or activator — is the most critical step in achieving design-strength adhesive bonds.

  6. What is the correct sequence when installing a new magneto on a reciprocating engine?

    Answer: Rotate engine to TDC firing position, install magneto in timed position, connect leads, verify timing

    The engine is first positioned to the timing mark for the cylinder being timed, then the magneto is installed with its internal timing set to the E-gap position, followed by lead connection and timing verification.

  7. A newly installed landing gear actuator is binding at one end of its travel range. What is the MOST likely cause?

    Answer: Misalignment between the actuator mounting points causing side-loading

    Binding at one end of travel typically indicates misalignment of the mounting points, which causes side-loading on the actuator barrel and piston rod.