Practice Test Geeks(ACS) Airman Certification Standard Certified Mechanic Practice Test
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Weight & Balance Flashcards

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

Read the first 7 Weight & Balance flashcards as text

  1. An aircraft operating with a CG aft of the aft limit will most likely experience:

    Answer: Reduced longitudinal stability and possible unrecoverable pitch-up

    An aft CG reduces or eliminates longitudinal static stability, making recovery from a stall or upset potentially impossible.

  2. Which document is the primary reference for an aircraft's approved weight and balance limits?

    Answer: The FAA-approved Airplane Flight Manual (AFM) or Pilot's Operating Handbook (POH)

    The FAA-approved AFM or POH contains the official CG envelope, weight limits, and loading instructions for the aircraft.

  3. After an alteration that changes aircraft weight or balance, the mechanic must:

    Answer: Reweigh the aircraft and update the weight and balance record

    Any alteration affecting weight or CG requires reweighing and updating the official weight and balance data in the aircraft records.

  4. What is the result if an aircraft is loaded with the CG forward of the forward limit?

    Answer: Excessive nose-down tendency requiring full aft elevator to maintain level flight

    A CG forward of the forward limit may exhaust available elevator authority, preventing the pilot from raising the nose for landing or recovery.

  5. When weighing an aircraft, which type of scale position provides the most accurate results?

    Answer: Scales under each main gear and nose or tail gear with the aircraft level

    Placing scales under each gear while the aircraft is level ensures all reaction forces are measured, allowing accurate calculation of weight and CG.

  6. What does 'maximum landing weight' refer to?

    Answer: The maximum certificated weight at which the aircraft can land without exceeding structural limits

    Maximum landing weight is the highest weight at which the landing gear and structure can absorb landing loads without damage.

  7. A 10-lb item is added at a station 50 inches aft of the CG. What is the moment change?

    Answer: 500 in-lb aft

    Moment change = Weight × Arm from CG = 10 × 50 = 500 in-lb acting aft, tending to move the CG aft.