Illinois's CDL Practice Tests
This general knowledge test contains 20 multiple choice questions. There are over 200 questions in our practice test database.
Practice for the CDL Air Brakes test required to drive a truck or bus with air brakes, or pull a trailer with air brakes.
An HazMat endorsement to your CDL is required for drivers of vehicles carrying hazardous material. This practice test contains questions to prepare you for the HazMat endorsement test.
Use this practice test to evaluate your level of preparedness for your CDL Tanker endorsement.
Combination vehicles are usually heavier, longer, and require more driving skill than single commercial vehicles. This practice test will access your knowledge on combination vehicles (tractor trailer, doubles, triples, straight truck with trailer).
This practice test provides information needed to pass the test for the CDL Passenger endorsement.
Illinois Commercial Driver's License Study Guide
Illinois Driver Services
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