Practice Test Geeks(AET) Aircraft Electronics Technician Practice Test
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Maintenance Procedures and Safety Flashcards

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

Read the first 7 Maintenance Procedures and Safety flashcards as text

  1. Under FAR Part 43, which task performed on an aircraft avionics system requires a Major Repair or Alteration form (FAA Form 337)?

    Answer: Installing a new avionics system not previously approved for the aircraft

    Installing a new avionics system not previously approved for the aircraft constitutes a major alteration requiring FAA Form 337.

  2. A technician is testing an aircraft transponder on the bench. What hazard does the transponder's RF output present?

    Answer: Electromagnetic radiation hazard to personnel and potential interference with ATC

    Active transponders emit RF energy that can cause electromagnetic radiation hazards to nearby personnel and interfere with ATC radar systems.

  3. When using a heat gun on aircraft wiring during shrink-tubing installation, the MOST important precaution is:

    Answer: Keep the heat gun moving and avoid concentrating heat on one spot

    Keeping the heat gun moving prevents localized overheating that could melt wire insulation or damage nearby components.

  4. What is the correct procedure when a technician accidentally drops a tool inside an aircraft during avionics maintenance?

    Answer: Immediately stop work and retrieve the tool, documenting the event

    A dropped tool must be immediately retrieved and the event documented, as a loose tool can jam flight controls or cause electrical hazards.

  5. Which OSHA standard primarily governs electrical safety for aviation maintenance technicians working on aircraft electrical systems?

    Answer: OSHA 29 CFR 1910.147 – Control of Hazardous Energy (Lockout/Tagout)

    OSHA 29 CFR 1910.147 (Lockout/Tagout) governs the control of hazardous energy during maintenance, directly applicable to aircraft electrical systems.

  6. After completing avionics maintenance, a technician notices the aircraft skin has several small scratches near the avionics bay access panel. The CORRECT action is to:

    Answer: Document the damage in the maintenance record and defer to sheet metal inspection

    Any new airframe damage found during maintenance must be documented and assessed by qualified personnel before return to service.

  7. What is the purpose of using a 'dummy load' when testing an aircraft radio transmitter on the bench?

    Answer: To simulate antenna impedance and prevent unauthorized RF emissions

    A dummy load absorbs transmitted RF energy, simulating antenna impedance while preventing unauthorized or hazardous radio frequency emissions into the environment.