Find ASE practice tests and other study resources for the Automobile & Light Truck Certification Test Series (A1 - A9). The auto mechanic test questions can help you get an idea of the types of questions on actual ASE certification tests. The A1 - A9 series includes these certification tests: A1 Engine Repair Test; A2 Automatic Transmission/Transaxle Test; A3 Manual Drive Train and Axles Test; A4 Suspension and Steering Test; A5 Brakes Test; A6 Electrical/Electronic Systems Test; A7 Heating and Air Conditioning Test; A8 Engine Performance Test; A9 Light Vehicle Diesel Engines Test. ASE certifications are granted by the National Institute of Automotive Service Excellence.
