CDL Practice Test

Prepare for your commercial driver's license knowledge tests with focused practice, clear explanations, and flexible study modes. CDL Practice Test brings general knowledge and major endorsement topics together in one straightforward learning app.

Study these key areas:

• General Knowledge
• Air Brakes
• Combination Vehicles
• Hazardous Materials
• Passenger Vehicles
• School Bus
• Tank Vehicles
• Pre-trip Knowledge
• Original 2024–2026 exam-style questions

Features designed for steady preparation:

• 200 questions in every category
• Four-choice questions with A, B, C, and D answers
• Study plan, practice, mock exam, and endorsement modes
• Immediate visual feedback after each answer
• A detailed answer sheet at the end of every test
• Correct answers and explanations shown for missed questions
• Favorites and mistake-based review
• Progress and preferences saved locally on your device
• Comfortable light and dark themes
• No account required

Use a short practice session for a quick review, focus on a specific endorsement, or complete a mock exam to identify areas that need more study. Review your answer sheet and continue at a pace that fits your schedule.

CDL rules, endorsements, testing procedures, and eligibility requirements vary by jurisdiction and may change. Always verify current information with your state's official commercial driver's manual and licensing authority.

CDL Practice Test is an independent educational study tool. It is not affiliated with, endorsed by, or sponsored by a state licensing authority, the Federal Motor Carrier Safety Administration, another U.S. government agency, or an official testing organization. Its questions are original study material and are not copied from an official exam. Use of the app does not guarantee a passing result.

The app contains banner advertising and may display an interstitial ad after a completed test and before the answer sheet.

Recent changes:
update