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FAA Mechanic Airframe (AMA) Knowledge Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf
- What is the primary purpose of an aircraft’s wing flaps?
- Reduce drag during cruise
- Increase lift during takeoff and landing
- Improve engine performance
- Decrease stall speed in climb
Rationale:
Flaps increase the camber and surface area of the wing, generating more lift at lower speeds, which is essential for takeoff and landing.
- / 4
- What type of metal is most commonly used in aircraft structures?
- Steel
- Aluminum alloys
- Copper
- Magnesium
Rationale:
Aluminum alloys offer a high strength-to-weight ratio and corrosion resistance, making them ideal for aircraft structures.
- What is the function of a torque tube in an aircraft control system?
- Increase control force
- Transmit rotary motion
- Reduce drag
- Act as a spring
Rationale:
Torque tubes transmit rotary motion from the cockpit controls to control surfaces while maintaining structural rigidity.
- Which inspection is required at 100-hour intervals on an aircraft used
for hire? 2 / 4
- Annual inspection only
- Preflight inspection
- 100-hour inspection
- Progressive inspection
Rationale:
FAA regulations require aircraft used for hire to undergo a 100-hour inspection to ensure continued airworthiness.
- What is the primary purpose of wing spars?
- Carry fuel
- Provide structural support
- Control lift distribution
- Reduce drag
Rationale:
Wing spars are the main structural members of a wing, carrying bending and torsional loads.
- Which of the following is considered an NDI (Non-Destructive
- Sanding
- Ultrasonic inspection 3 / 4
Inspection) method?
- Welding
- Cutting
Rationale:
Ultrasonic inspection allows detection of internal flaws without damaging the part, a common NDI technique.
- What is the function of ailerons on an aircraft?
- Control pitch
- Control roll
- Control yaw
- Increase lift
Rationale:
Ailerons are mounted on the trailing edges of wings and move in opposite directions to roll the aircraft.
- What does the term “tangency” refer to in sheet metal work?
- Welding angle
- Rivet spacing
- The point where two surfaces meet smoothly
- Sheet metal thickness
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