CDL Test Prep

Get ready for your Commercial Driver's License (CDL) knowledge tests with realistic practice questions and full-length mock exams. WHAT'S INSIDE • 895 original practice questions with clear explanations • 8 sections: General Knowledge, Air Brakes, Combination Vehicles, Hazardous Materials (HazMat), Tank Vehicles, Doubles & Triples, Passenger Transport, School Bus • Mock exams that match the real test format (e.g., 50 questions for General Knowledge, 80% to pass) • Study mode and quick quizzes • Progress tracking for each section FREE VERSION • 30 General Knowledge practice questions • 1 General Knowledge mock exam per day CDL PRO (one-time purchase, no subscription) • Unlock all 895 questions and every section • Unlimited mock exams • No ads • Restore your purchase anytime WHO IS IT FOR? Anyone preparing for a CDL learner's permit or endorsement test, including Class A, B and C drivers, as well as HazMat, Tanker, Passenger, School Bus and Doubles/Triples endorsements. DISCLAIMER This is an unofficial study app. It is not affiliated with or endorsed by FMCSA, AAMVA, or any state DMV or licensing agency. Rules can vary by state, so always check your state's official CDL manual.