Rely on the most trusted source in aviation training with ASA's Test Guides to prepare for your Aviation Mechanic FAA Knowledge Exams. Test questions are supported with answers, thorough and succinct explanations, and references for further study. Questions, answers, and explanations arranged to accelerate learning and encourage retention. FAA test figures incorporated near the questions and explanations for easy reference. Free updates keep you current with test changes. Includes test tips and instructions, an Oral & Practical Study Guide, and 5 online practice tests at no additional cost! Use the Powerplant Test Guide for the AMP Aviation Mechanic--Powerplant Knowledge Exam.