CO CDL General Knowledge Exam Simulator 2025

Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
Based on 2025 CO commercial driver's license manual
Triple-checked for accuracy
Updated for April 2025

Have you always wanted to drive one of those heavy trucks you saw as a kid? Or perhaps the school bus driver inspired you to follow their career path once you grew up. Make your dream career a reality and begin the process of obtaining a Colorado Commercial Driver’s License (CDL) today. Your determination to achieve your professional goals will play a crucial role in this journey, but you must also meet several licensing requirements. To obtain a Commercial Learner’s Permit (CLP), you must obtain a valid DMV Medical Examiner’s Certificate, provide the necessary documentation, pay the license fees, and pass the official CDL General Knowledge (permit) test. This exam consists of 50 questions based on the official Colorado commercial driver license manual (Colorado CDL Handbook 2025). After holding a CLP for at least 14 days and completing Entry-Level Driver Training (ELDT) from a registered training provider, you can schedule and take the CDL skills test.
If you have difficulty understanding the various aspects of commercial driving theory, you should adopt a smarter approach and change your study routine. You cannot become an expert overnight, so we recommend dedicating a few days to understanding the basic concepts and several more weeks to master this subject. Our other CDL practice tests can strengthen your knowledge through active learning, which is more effective than traditional learning methods. When you’re ready, take our Colorado CDL General Knowledge Exam Simulator to see if you can pass the official exam. This intuitive tool has been recently updated for April 2025 and includes the latest updates brought by DMV rules or state law. All 50 questions have multiple answer choices, but only one is correct.
You get unlimited attempts, nonstop access, and the flexibility to practice at your own pace. All you need is a compatible device and a stable internet connection. Your dream career is within reach. We’ll get you there faster with our intuitive tools, but you must put in the time and effort necessary to become a safe and responsible commercial driver. Whether it takes weeks or months, remember there’s no time limit during your learning phase.

5 min to complete

Available in EN and ES

This test is a Premium member exclusive. You'll get:

All 650 exam-like questions
specific to your state

Interactive learning with
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Unique 360° Virtual Road
Simulations

Get your money back if you
don’t pass

What to expect on the actual CO DMV exam

questions

correct answers to pass

80%

passing score

Helpful links

CO DMV website

Official Colorado CDL manual (2025)

More CO DMV Written Exam Resources

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Explore our rigorous, multi-tiered verification process that ensures each question mirrors the official manual for unparalleled accuracy.

Written by Andrei Zakhareuski Updated over a week ago

At Driving-Tests.org, we understand the importance of reliable and accurate practice tests to help you prepare for your DMV exam. That's why we've developed a meticulous process to create and continually update our practice questions, ensuring they reflect the most current driving laws and regulations.

Here's an inside look at how we maintain the highest quality in our practice tests.

Content Creation and Verification Process

Alignment with Official Manuals:
Every question we develop is based on the most recent version of each state's official driving manual. Our team regularly monitors each state DMV's website for the latest updates to ensure our practice tests are always aligned with the most current information.
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We leverage feedback from our vast community of users to understand which topics are most frequently tested. This helps us focus on the areas that are most relevant and beneficial for your preparation.
Expert Content Creation:
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Our thorough quality control process ensures that you have access to practice tests that are as accurate and up-to-date as possible. We believe in the power of well-prepared drivers and are dedicated to providing you with the best study tools to help you succeed on your DMV exam.

CO CDL General Knowledge Exam Simulator

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