IL CDL General Knowledge Exam Simulator 2025

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

Becoming a commercial driver in Illinois can be a long and difficult process, but we’ll help you get through it by providing access to an efficient learning tool. As you begin your learning phase, you should read the official Illinois commercial driver’s license study guide (Illinois CDL Handbook 2025). It contains important information on the various aspects of commercial driving theory, including vehicle inspections, safe driving practices, and traffic laws. The official CDL permit test consists of 30 multiple-choice questions based on this manual. You must score at least 80% to pass, leaving little room for mistakes.

Our Illinois CDL General Knowledge Exam Simulator will help you determine your level of preparedness. This intuitive tool has been designed to closely reflect the content and format of the official exam, allowing you to simulate the official testing experience on your device. The only difference is that we have omitted any timer to let you think and analyze each question before you select an answer. If you make too many mistakes, the test ends immediately, and you’ll have to start a new session. Students unfamiliar with commercial driving should study the official handbook and practice with our CDL practice tests to build the knowledge necessary to become a commercial driver. Once ready, you should use our simulator to evaluate your performance before going to the DMV office to take the official exam.

Start today and consistently train with our simulator until your scores gradually increase. Building the foundation for your commercial driving career takes time and effort. You cannot rush or skip the learning phase, but with the right tools, you can master this subject within a few weeks. There are plenty of opportunities for beginner commercial drivers in Illinois. However, employers seek professional candidates who are serious about their job. Passing the official CDL general knowledge exam should not be your primary goal; it is just a step in the licensing process. Ensure you understand even the most advanced aspects of commercial driving because your future career depends on the knowledge you build today.

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

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Unique 360° Virtual Road
Simulations

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don’t pass

What to expect on the actual IL DMV exam

questions

correct answers to pass

80%

passing score

Helpful links

IL DMV website

Official Illinois CDL manual (2025)

More IL DMV Written Exam Resources

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Our commitment to accuracy and quality in our practice tests

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.
Community Feedback Integration:
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:
Our in-house editor, Steven, who has extensive experience in driver education, crafts each question with precision. He conducts a thorough review of each question against the official manuals to ensure accuracy.
Rigorous Review Process:
Once Steven has finalized a set of questions, our team conducts a joint review session. This second level of scrutiny involves content accuracy, proofreading, and fact-checking to eliminate any errors.
User Feedback Mechanism:
After a question goes live on our site, we keep the lines of communication open. Each question features a feedback button, inviting users to report any issues or errors. This continuous feedback loop allows us to address and rectify any concerns promptly.
Responsive Updates:
In line with our commitment to accuracy, we quickly update our practice questions to reflect any changes in the DMV manuals. Additionally, we update the free electronic copy of the state's driver's license manuals on our site, typically within a few days after the DMV publishes them.

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.

IL CDL General Knowledge Exam Simulator

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