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View All PlansA Class A CDL (Commercial Driver’s License) allows you to drive any combination vehicle with a gross combination weight rating (GCWR) of 26,001 pounds or more, provided the gross vehicle weight rating (GVWR) of the towed unit exceeds 10,000 pounds. To obtain this license, you must meet eligibility requirements, submit an application, and complete the licensing process. If you plan to engage in non-excepted commerce, you must also pass a medical examination.
The official Commercial Driver’s License Study Guide (Illinois CDL Handbook 2025) describes commercial driving theory in detail. It includes a section dedicated entirely to combination vehicles (Section 6). Please read this section multiple times during your learning phase. When you’re ready, you can use our Illinois CDL Combination Vehicles Practice Tests to evaluate your knowledge.
The practice test that you’re about to take is the fourth in this series. It is up to date as of December 2025, and it accurately reflects the latest updates brought by DMV rules or state law. You will always practice with the latest version, but we recommend visiting the official DMV website for the most up-to-date information.
Customize your testing experience with the available features. You can find them in the test settings menu, which can be opened by clicking the three dots in the top-right corner of the page. Since this practice test is available in multiple languages, you can also change the language from this menu. The “Shift + ?” key combination can be used to display a complete list of keyboard shortcuts. You can use them to control the practice test from your keyboard, which is especially handy if your wireless mouse runs out of battery charge.
Commercial driving theory is a complex subject that cannot be learned overnight. Our Free Illinois CDL Permit Practice Test can help you master general commercial driving theory within a few weeks while also preparing you for the official general knowledge exam. Start your training today and build a strong foundation for your driving skills by using our practice tests.
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