Free Ohio CDL Combination Practice Test 2025

Have you been reading the official Ohio Commercial Driver License Manual (Ohio CDL Handbook 2025) to try to pass the official Combination Vehicles knowledge test on operating combination vehicles? Still concerned that you may not pass the test without additional help of some kind? No problem! That’s what we do. Many other aspiring commercial drivers have found themselves in the same situation. That’s why many of them have come here to supplement their reading of the manual with the study tools we offer.

This free Ohio CDL Combination practice test is based on the official manual, just like the official Combination Vehicles knowledge test. The practice test is up to date as of October 2025. Practicing with it will make all the material covered by the test questions easier to remember. To make your learning easier, each of the 25 practice questions comes with a helpful hint and an explanation of the correct answer. The practice questions and answers on this test will assess your knowledge of such topics as combination braking systems, combination driving techniques, coupling and uncoupling, and pre-trip inspections. Stuck on a puzzling question? Our automated assistant can give you a hint. Still answered the question wrong? The assistant can give you an explanation of the correct answer.

There are three classes of Commercial Driver’s License (CDL): Class A, Class B, and Class C. Class A is typically for operating heavy combination vehicles such as semi-trucks and tractor-trailers in Ohio. Passing the Combination Vehicles knowledge test is a virtual necessity for Class A. Otherwise, you won’t even be able to practice driving heavy combination vehicles, which will largely defeat the purpose of obtaining a Class A CDL.

Once you hold a CDL of the appropriate class and all the endorsements you need, you can profit from all the commercial driving opportunities Ohio has to offer. Ohio is the third-largest manufacturing state in the country (behind California and Texas), with over 12,000 manufacturers producing a wide variety of products. Truck drivers are in demand to deliver raw materials to them as well as transport their products. Ohio also employs truck drivers to transport products from its large agricultural sector.

Ohio is also a major Midwest logistics hub. It’s served by such important Interstate truck routes as Interstates 70, 71, 75, 77, and 80/90. Other important truck routes include U.S. Routes 23, 33, and 35 and Ohio Routes 4 and 32. However, winter driving can be difficult, particularly near Lake Erie. Snowstorms, ice, and freezing rain can make driving hazardous on I-90 and I-77 because of lake-effect snow.