Home / Practice tests

Free CDL practice tests

Most drivers start with General Knowledge, since everyone takes it. Add Air Brakes if your vehicle has air brakes, and Combination Vehicles if you're going for a Class A. Then add a test for each endorsement you want.

Choose a quick round or a longer set: 50 General Knowledge questions, 25 Air Brakes questions, and 20 Combination questions. Get feedback after each answer or save it for the end in mock-test mode.

Build a study plan around the questions you miss. Our original practice questions are not official exam questions, and a practice score does not guarantee a test result. The federal passing rule and state examples are on the CDL test page for 2027.

Looking for state-specific resources? Visit our CDL practice test pages by state, which combine practice tests with your state's official manual and directory of registered CDL schools. Return to the homepage to see all available practice tests and resources.

Prefer a daily warm-up? See the CDL question-of-the-day extension for Microsoft Edge.

Getting ready for the skills test? Start with the pre-trip inspection guide.