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Free CDL Practice Tests

Updated for 2018, CDL Study Buddy's online practice tests will help you study for your Class A commercial driver's license (CDL) and along with all the endorsements. Our tests include general knowledge, combination vehicle, HAZMAT, tanker, doubles & triples. These tests are designed to supplement your truck driver training classes and resemble the actual test found at your local DMV.

A career in trucking begins with obtaining your CDL (Commercial Driver???s License). In order to do so, you will be required to pass a series of written CDL tests to receive the proper endorsements, based on what type of trucking career you are pursuing. Don???t waste your time or money by failing the written tests for your CDL permit.

Use our free study guides to learn everything you'll need to know to in order to pass all your test. Or in todays fast paced world if finding time to read is difficult your welcome to use our free audio CDL handbook.

General Knowledge

Before you sign up to take on the state required drivers test to earn your commercial license, test your general CDL knowledge with our CDL practice test.

GENERAL KNOWLEDGE TEST

Combination Vehicles

Test your knowledge of combination vehicles before you take your combination vehicles certification test at the DMV. Give yourself a passing chance before you take on the required exam.

COMBINATION VEHICLES TEST

Air Brakes

Practice your skills and test your knowledge regarding air brakes before you take the state certification air brake test.

AIR BRAKES TEST

Doubles and Triples Endorsement

Preparing for the doubles and triples endorsement? Pass our practice test with a 90% or higher and set yourself up for success before taking on the state exam at your local DMV.

DOUBLES AND TRIPLES ENDORSEMENT TEST

Tanker Endorsement

Looking to earn your tanker endorsement? Don't take the state required exam without preparing with our practice test first. Test your current knowledge and identify areas that need improvement.

TANKER ENDORSEMENT TEST

Hazmat Endorsement

Interested in advancing your career by obtaining a hazmat endorsement? Before you take your state's test, make sure you are prepared by answering our practice test questions.

HAZMAT ENDORSEMENT TEST