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Montana CDL Class B Practice Test 2025

Average pass rate for CDL tests in Montana: 67%.
Average pass rate for this test: 33%.
Hard
9 min

Welcome to our Montana CDL Class B Practice Test, an intuitive tool designed to boost your learning potential. Whether you want to evaluate your knowledge or learn from your mistakes, this practice test should not be missing from your toolkit. It consists of 50 questions based on the official Montana Commercial Driver License Manual (Montana CDL Handbook 2025). All questions have multiple answer choices, but only one is correct. A minimum score of 80% is required to pass, leaving little room for error.

Montana CDL Class B Practice Test 2025
Commercial Driver's License
Based on the official MT CDL HandbookHandbook‑based (2025) + exam‑taker feedback
2 MT students practicing now
• 13 completed today
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

Real Montana drivers who passed first try

Verified student reviews • Shared with permission

Helped a lot.
Tests and videos helped a lot! Would recommend, made getting my endorsements super easy
A
3 weeks of studying for me and I passed.
Amazing program. 3 weeks of studying for me and I passed # tests, General, Air Brakes, and Combination.They gave me 3 hours to take them. I finished all 3 in 11 minutes and only 2 wrong answers across all the tests! I highly recommend this program.
S
This is the best site to assist you….
This is the best site to assist you with learning and passing any driving exam. I studied for combination vehicles for my class A CDL and passed with 100%. I didn't miss any questions. All of the questions in this study guide site matches exactly what is on the state exam. Truly a great resource. I would recommend this site to anyone. Thank you.
BB
Great study system.
Hi: Thank you for developing this study system! I passed the general knowledge, air brakes, and combination vehicles test today the first time around! I would recommend your system to anyone who wants to get their CDL!
G
Driving-tests.org was the best decision….
Driving-tests.org was the best decision I made to learn and study to pass my CDL exam at the DMV. Through their program I was able to get a passing probability of 98% in less than one month. I studied for most of the endorsements and passed them all on the same day with out any complications. Thank you so much, definitely recommend this site to anyone trying to get their CDL. They could have not made it any easier! 🙏🏽🙌🏽
MG
Second time's a charm!
I tried a couple other websites for some mock tests before taking the test for my hazmat endorsement. I thought I had it whipped. I failed. The DPS examiner handed me a CDL manual and told me to go home and study. I read the chapter for hazmat, but still didn't feel confident with my knowledge. After finding Driving Tests.org, and going through the paces, I finally had the confidence I needed to succeed. This time I pasted with flying colors! 100% Thanks to all at Driving Tests.org! I couldn't have done it without you all! Excellent material! Thanks again and best wishes!
SI

About the Montana CDL

Do not get discouraged if you make a mistake. The detailed explanation of the correct answer will help you understand why your choice was wrong. This feedback is provided for each question, helping you build knowledge and confidence. Note it in a notebook or notebook app and revisit the material during future practice sessions. Updated for December 2025, this practice test closely reflects the content and format of the official general knowledge exam. However, we have omitted any timer to allow students to practice at their own pace. You should avoid rushing through your learning phase. Dedicate plenty of time to fully understand every part of commercial driving theory, and improve your knowledge one practice session at a time.

You will find the test settings menu in the top-right corner of the page. This menu includes several features and a slider for adjusting the font size. The answer popularity feature, once activated, will display a percentage near each answer choice. This feature lets you see how other students answered and helps you spot questions where misconceptions are common. The answer popularity for a question is revealed only after you make your own choice.

Commercial driving theory cannot be learned overnight. It takes time and effort to build a solid foundation for your dream career. Improve your knowledge gradually and build the confidence to achieve a passing score on your first attempt with the help of our Montana CDL Class B Practice Test.

We know what it takes to pass. And we’ve got the proof.

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A smarter way to study

Challenge Bank™

Our trademarked system automatically saves questions you miss, creating personalized tests that target your weak spots until you’ve mastered the material.

AI-powered feedback

Get smarter as you study. Our new AI-powered feedback provides detailed, question-level insights to help you understand the why behind each answer.

Interactive handbook

Go beyond the boring black-and-white manual. Our interactive handbook lets you read, listen with an MP3 audio version, or even chat with it to find the information you need, faster.