Our free CDL practice tests measure your understanding of the many responsibilities involved in the safe operation of a commercial vehicle as well as the applicable state and federal laws. Areas covered by our practice tests include, but are not limited to: Air Brakes, Basic Vehicle Control, Combination Vehicles, Doubles/Triples, General Driving Knowledge, Hazardous Materials, Pre-trip Inspection, Safely Transporting Cargo, Safely Transporting Passengers, and Tanker Trucks.

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