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View All PlansThe pre-trip inspection is a required safety check you perform at the beginning of your shift, before driving a commercial vehicle. This inspection prevents accidents caused by damaged or improperly installed equipment and keeps you in compliance with FMCSA rules. As an aspiring commercial driver, you should study this procedure in detail and master every step. You will find more information on pre-trip inspections in the Wisconsin Commercial Driver’s Manual (Wisconsin CDL Handbook 2025), which is an official resource published by the Department of Transportation (DMV).
The official general knowledge exam consists of 50 multiple-choice questions. To get a Commercial Learner’s Permit (CLP), you must pass this exam with a score of 80% or higher. Your knowledge of pre-trip inspections, safe driving practices, hours of service regulations, and other safety requirements will be evaluated at the DMV location.
Since most commercial vehicles in Wisconsin are equipped with air brakes, you should also take the official air brakes knowledge test. Once you pass this knowledge test and a skills test in a vehicle with air brakes, the L restriction on your CDL will be lifted, allowing you to legally drive vehicles equipped with air brakes. Our Wisconsin Air Brakes Practice Test can help you prepare and ace this knowledge exam on your first attempt.
Many students make avoidable mistakes on exam day simply by rushing. Feelings of anxiety and nervousness can also impact their performance on the test. Our Wisconsin CDL Class B Practice Test closely reflects the content and format of the official general knowledge exam. When used regularly, it can significantly boost your learning potential.
Build your knowledge and improve your confidence with this practice test so you can go to the DMV location prepared on exam day. All 50 questions are based on the official commercial driver’s manual. There’s no timer to pressure you. Please finish each training session at your own pace and learn from your mistakes as soon as they occur. A detailed explanation of the correct answer is provided for each question. For future reference, you should note this feedback in a notebook or notebook app.
Commercial driving theory is a complex subject to master. With the right tools, you can make the learning process more efficient and enjoyable. Our Wisconsin CDL Class B Practice Test is available online, 24/7, so you can train anytime, anywhere in the world.
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