ASE Practice Test & Diagnostic Skills Trainer
Practice the reasoning behind the ASE Automobile and G1 tests with 120 original questions, two feedback modes, and topic-level results. Start with the 20-question mixed diagnostic or drill one test at a time.
Choose an ASE practice test
A1 through A8 make up the Automobile tests used for ASE Master Automobile Technician status. A9 is a separate light-vehicle diesel specialty test. G1 covers maintenance and light repair across several systems.
A1 Engine Repair45 scored questions on the real exam
A2 Automatic Transmission45 scored questions
A3 Manual Drive Train40 scored questions
A4 Suspension & Steering40 scored questions
A5 Brakes45 scored questions
A6 Electrical / Electronic50 scored questions
A7 Heating & A/C50 scored questions
A8 Engine Performance50 scored questions
A9 Light Vehicle Diesel50 scored questions
G1 Maintenance & Light Repair55 scored questions
20-question mixed ASE diagnostic
The mixed diagnostic draws two questions from every module so you can see which systems deserve the next round of study.
How to use the results without lying to yourself
Learning mode
Use this when you are still building the material. You get the rationale immediately, which makes every miss a study prompt instead of a tiny emotional crisis in a blue rectangle.
Exam-style mode
Use this when you want cleaner self-testing. Feedback stays hidden until the end so you cannot use one explanation to answer the next question.
TSNET labels your practice performance as Needs focused review, Building, Strong practice performance, or Very strong practice performance. Those labels are ours. ASE does not publish a simple universal raw percentage that lets a third-party quiz translate 80% here into “you will pass.”
Current ASE Automobile test structure
ASE's 2026 Automobile study guide lists the following initial-test lengths. Each A-series initial form includes 10 unscored research questions in addition to the scored questions.
| Test | Scored | Total | Time | Master A1-A8? |
|---|---|---|---|---|
| A1 Engine Repair | 45 | 55 | 75 min | Yes |
| A2 Automatic Transmission / Transaxle | 45 | 55 | 75 min | Yes |
| A3 Manual Drive Train and Axles | 40 | 50 | 60 min | Yes |
| A4 Suspension and Steering | 40 | 50 | 60 min | Yes |
| A5 Brakes | 45 | 55 | 75 min | Yes |
| A6 Electrical / Electronic Systems | 50 | 60 | 90 min | Yes |
| A7 Heating and Air Conditioning | 50 | 60 | 75 min | Yes |
| A8 Engine Performance | 50 | 60 | 75 min | Yes |
| A9 Light Vehicle Diesel Engines | 50 | 60 | 75 min | No |
| G1 Maintenance and Light Repair | 55 | 65 | 90 min | Separate G-series test |
What good ASE prep actually looks like
Memorizing answer patterns is weak preparation. ASE says its test questions are developed and reviewed by working industry subject-matter experts and that unscored research questions are evaluated before they become scored items. The useful study habit is to explain why a measurement, symptom, or next diagnostic step makes sense.
Read Technician A / Technician B independently
Treat each statement as its own claim. Decide whether A is technically correct, then B, then choose the combination. Do not assume one technician must be wrong.
Prove the circuit or system before replacing parts
When a question gives you measurements, codes, or a specific operating condition, use them. A diagnostic test that can confirm or reject a hypothesis is usually more defensible than a shotgun replacement.
Passing a test is not the whole ASE certification requirement
ASE certification combines a passing test result with relevant hands-on work experience. ASE's current work-experience instructions list one year of Repair Technician experience for G1 and two years for A1-A9. Most candidates can test before the experience is finished, but ASE does not award the credential until the experience requirement is also approved.
Formal automotive education can substitute for part of the experience requirement in specific cases. See our ASE certification guide for the current experience, fee, retest, and certification-process details rather than bloating every practice page with the same logistics.
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ASE practice test FAQ
Is this an official ASE practice test?
No. Trade-Schools.net is independent and is not affiliated with or endorsed by ASE. We use the public test specifications to organize study topics, but every practice item is original.
Can my score here tell me whether I will pass an ASE test?
No. ASE does not publish a simple universal raw percentage-to-pass number for the current professional A-series tests. Use your TSNET score to identify study gaps, not as a pass prediction.
Which ASE tests are required for Master Automobile Technician status?
ASE identifies A1 through A8 as the Automobile tests required for Master Automobile Technician status, along with the applicable work-experience requirement. A9 is not required for Automobile Master status.
Can I take an ASE test before I finish the work-experience requirement?
For most tests, yes. ASE lets candidates test before completing the experience requirement, but certification is not awarded until the relevant work experience is documented and approved.
Sources and verification notes
Test structure and certification facts were checked against current ASE materials on September 15, 2026. Technical practice questions are original educational scenarios and are not copied from ASE or commercial test-prep products.