Based on 2023 CA CDL manual

Mistakes allowed
Passing score
Official CA General Knowledge: What to Expect
Total number of questions

Number of questions required to pass

Percentage required to pass

California Commercial Driver's License
California Commercial Driver's License

The CDL general knowledge test has proven to be a real challenge for those that don’t prepare. Give yourself the best possible chance at success with free practice tests.  Our California CDL Practice Test will allow you to get a preview of what topics and subject matter is covered on the real exam. Expect questions covering driver safety, vehicle operations, coupling and upcoupling, braking methods and more. The 50-question test includes detailed explanations after every response to help you fully understand the material ultimately improving your score. You will need to answer a minimum of 80% of the questions correctly to pass.  This is the same pass rate as the real exam so take advantage of the unlimited attempts until you are satisfied with your score.

Don’t waste time or money by failing the exam.  Every attempt requires scheduling an appointment and additional fees so it pays to put the effort in now.  Start preparing for a career in commercial trucking now.