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  • 0  (6 mistakes allowed to pass)

Free IN CDL Diagnostic Test 2025

Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements.

To get a rough idea of how much you know about commercial driving rules in Indiana, try our IN CDL diagnostic test. It contains 30 multiple-choice questions on a variety of topics in commercial driving: air brakes, hazardous materials, buses, combination vehicles, and tanker trucks. This test will help you quickly identify gaps in your knowledge of commercial driving, which will be especially useful if you’re just starting to prepare for the CDL knowledge exams. Each practice question includes a picture and has four possible answers. Choose the most complete and correct answer for each question. Each question also comes with an optional hint if you need it and an explanation of the correct answer. Try our CDL diagnostic test and see whether you are ready for the real thing. Good luck, and drive safely!

Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives
Free IN CDL Diagnostic Test 2025
IN commercial driver's license
Based on official IN exam questions
Steven Litvintchouk, M.S., Chief Educational Researcher at Driving-Tests.org

Authored and fact-checked by Steven Litvintchouk, M.S.

Chief Educational Researcher, Driving‑Tests.org (ACES member)
Last verified for accuracy on
Methodology & Editorial Policy

5 min to complete
Available in EN and ES

What to expect on the actual IN permit test

50

questions

40

correct answers to pass

80%

passing score

Real Indiana drivers who passed first try

Verified student reviews • Shared with permission

A great program.
A great program for studying to get your CDL Class B learners permit. I studied for about two-three weeks. I took the practice tests over and over again until I was able to get 100%. The practice tests questions were very similar to the actually test questions. I went down to the BMV and took the four tests I needed to get my Class B School Bus Drivers learners permit. I passed all four tests in less than two hours! I could not have learned the material, as fast as I did, without driving-tests.org.
SD
Very thorough and invaluable.
The content was very thorough and the practice tests were invaluable. When you answered questions incorrectly the correct answer was explained thoroughly. I scored 100% on the BMV test, and was completely confident that I would pass going into it. I highly recommend this course
JAB
Recently passed my Indiana Hazmat endorsement exam for my.
I recently passed my Indiana Hazmat endorsement exam for my CDL with a score of 100%. I found the preparation process challenging but rewarding. The key to my success was utilizing the flashcards and the practice tests.
S
Purchased this program for my wife she is considering a.
I purchased this program for my wife she is considering a career move to the trucking industry. She studied (what seemed like just a few days) went to the Indiana DMV and passed the General Knowledge, Air Brakes and Combination Vehicles tests on the first try. #HappyWifeHappyLife
B
Great program helps in many ways.
Passed tanker and hazmat in first try and didn’t miss a question. Excatly same questions as are in test in dmv
MC

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