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View All PlansDriving a combination vehicle involves great responsibility. There’s no room for error when you’re towing a loaded trailer on winding roads. The increased height and weight significantly raise the risk of rollovers. Combination vehicles can be unstable due to their higher center of gravity, and you must learn how to manage that instability with skill and control.
That’s why the DMV employs a strict licensing process and requires every aspiring commercial driver to pass several exams. Before you can get behind the wheel of an 18-wheeler, you must study and master commercial driving theory. During your learning phase, the official Connecticut Commercial Driver’s License Manual (Connecticut CDL Handbook 2025) will be your primary study resource. This comprehensive manual includes essential information on the various aspects of commercial driving theory. Please read it multiple times and pay attention to Section 6 (Combination Vehicles).
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This Connecticut CDL Combination Vehicles Practice Test is one of several we offer. Designed to closely reflect the contents and format of the official combination vehicles knowledge exam, this intuitive tool can be used to evaluate your knowledge before exam day. It includes 25 multiple-choice questions covering important topics such as coupling and uncoupling procedures, pre-trip inspections, and safe driving practices. To pass, you must achieve a minimum score of 80%.
A detailed explanation will be provided immediately after you select an answer. This feedback lets you identify mistakes as soon as they occur, so you don’t have to wait until the test is over to know what went wrong. We recommend writing this feedback in a notebook or notebook app. Review the material during future study sessions to strengthen your understanding and improve your knowledge.
With unlimited attempts, you can train with this practice test as often as you want. Consistency and perseverance are keys to mastering commercial driving theory and building the confidence to pass your theory exams on your first attempt. You can also check our Free Connecticut CDL Permit Practice Test, which can help you get a better understanding of what’s covered on the official general knowledge test.
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