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General Aircraft Maintenance Knowledge Flashcards

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

Read the first 7 General Aircraft Maintenance Knowledge flashcards as text
  1. What is the purpose of an 'overhaul' as defined in 14 CFR Part 43, Appendix D?

    Answer: Restoring an item to a like-new condition using FAA-approved data and within new-part tolerances

    An overhaul restores a component to new-part tolerances using FAA-approved data, verifying all dimensions are within limits specified for new parts.

  2. A technician discovers a crack in an aircraft skin panel. What is the FIRST action before determining repair procedure?

    Answer: Consult the aircraft's Structural Repair Manual (SRM) for approved repair data

    Before any repair action, the technician must consult approved data — the SRM or FAA-approved equivalent — to determine the correct inspection and repair procedure.

  3. Which rivet is recommended when riveting dissimilar metals that cannot be anodized after assembly to prevent galvanic corrosion?

    Answer: Monel rivet

    Monel rivets are used where galvanic compatibility is critical, particularly when joining stainless steel or other metals that would create severe galvanic couples with aluminum rivets.

  4. According to FAA AC 43.13-1B, what is the minimum edge distance for a rivet hole measured from the center of the hole to the edge of the sheet?

    Answer: 2 times the rivet diameter

    AC 43.13-1B specifies a minimum edge distance of 2D (twice the rivet diameter) from the rivet centerline to the nearest sheet edge.

  5. What condition is indicated when a hydraulic system's relief valve opens frequently during normal operations?

    Answer: The pump output exceeds the system's demand or a downstream component is blocked

    Frequent relief valve opening indicates the pump is producing more pressure than the system can use, often because a component is blocked or the pump is oversized for the demand.

  6. What does the term 'mean aerodynamic chord' (MAC) represent in aircraft weight and balance?

    Answer: The average chord length of a tapered or swept wing, used as a reference for CG limits expressed as a percentage

    MAC is the chord of an imaginary rectangular wing with the same lift and center-of-pressure characteristics as the actual wing, used to express CG location as a percentage for tapered or swept wings.

  7. An aircraft reciprocating engine exhibits low oil pressure at idle but normal pressure at cruise RPM. The MOST likely cause is:

    Answer: Worn engine bearings causing excessive oil clearance

    Worn main or rod bearings increase oil clearance, allowing oil to leak past at low pump output (idle), while higher pump output at cruise maintains adequate pressure.