FAA · AMG
Aviation Mechanic General (AMG) Knowledge Test practice exams
The FAA's General knowledge test for the A&P mechanic certificate — practice against the Aviation Mechanic ACS, with every answer explained.
Or read 15 sample questions with answers.
About the AMG exam
The Aviation Mechanic General (AMG) test is the first of three FAA knowledge tests for the mechanic certificate with Airframe and/or Powerplant ratings. It covers the shared foundations: electricity, drawings, weight and balance, fluid lines, materials and hardware, ground operations, corrosion, math, regulations, physics, inspection and human factors.
The test follows the Aviation Mechanic Airman Certification Standards (FAA-S-ACS-1). These practice exams cover all twelve General subject areas in the proportions the FAA publishes.
The real exam
Public information published by FAA. A ExamWize practice exam matches this format — it is not a copy of the exam's contents.
- Format
- 60 multiple-choice questions in 2 hours, at an FAA airman knowledge testing center.
- Cost
- Testing fees are set by the testing center — check current pricing when you schedule.
- Scoring
- The minimum passing grade is 70 percent (14 CFR 65.17). Practice scores here use the same 70% pass line.
- Validity
- Passing the knowledge test is one step; you also need the oral and practical tests to earn the mechanic certificate.
Practice by exam topic
ExamWize practice exams draw questions in these same proportions, from a bank of 598 AMG questions. Open a topic for what it covers and free questions with answers.
- Fundamentals of Electricity and Electronics· 60 questions10%
- Aircraft Drawings· 48 questions8%
- Weight and Balance· 48 questions8%
- Fluid Lines and Fittings· 46 questions8%
- Aircraft Materials, Hardware, and Processes· 48 questions8%
- Ground Operations and Servicing· 61 questions10%
- Cleaning and Corrosion Control· 48 questions8%
- Mathematics· 48 questions8%
- Regulations, Maintenance Forms, Records, and Publications· 48 questions8%
- Physics for Aviation· 48 questions8%
- Inspection Concepts and Techniques· 48 questions8%
- Human Factors· 47 questions8%
Who it's for
- Students at Part 147 aviation maintenance technician schools
- Military and civilian mechanics qualifying through practical experience
- Anyone retaking the AMG who wants to target weak subject areas
How to prepare
- Practice Ohm's law, series and parallel circuits, and power calculations until they are automatic.
- Work weight and balance problems: moment = weight × arm, CG = total moment ÷ total weight.
- Know your hardware: AN bolt markings, safety wiring, fittings and tubing sizes.
- Review 14 CFR Parts 43 and 65, Form 337 and maintenance record requirements.
See the free AMG cheat sheet for a one-page domain summary, and the content policy for how these questions are written.
Free AMG practice resources
- 15 free AMG practice questionsSpread across the exam's topics, each with the answer and an explanation for every option.
- Free 10-question diagnosticA quick, scored check of where you stand, with no account needed.
- AMG cheat sheetThe topics and the facts that come up most, on one page.
- AMG study guideHow to plan your preparation.
AMG exam FAQ
- What is the format of the AMG exam?
- 60 multiple-choice questions in 2 hours, at an FAA airman knowledge testing center.
- How much does the AMG exam cost?
- Testing fees are set by the testing center — check current pricing when you schedule.
- How is the AMG exam scored?
- The minimum passing grade is 70 percent (14 CFR 65.17). Practice scores here use the same 70% pass line.
- How long is the credential valid?
- Passing the knowledge test is one step; you also need the oral and practical tests to earn the mechanic certificate.
- How many AMG practice questions does ExamWize have?
- 598 original practice questions, drawn into full practice exams in the same format and domain proportions as the real AMG. Every option has its own explanation.
- Are these real AMG exam questions?
- No. Every question is original, written from FAA's public content outline — never copied from the real exam or from exam dumps. They match the real exam's format, not its contents.
- Can I try ExamWize for free?
- Yes. The free diagnostic has 10 AMG practice questions with a full explanation for every answer, and no account is needed.