California General Knowledge CDL Practice Test (CA) 2021

Looking for a CDL study buddy? We've got one right here! Your first practice test for the 2021 California commercial drivers license test!

  • 20 Questions
  • 80% Passing Score
  • 4 Mistakes Allowed
94% of students found this test helpful!
Rated 4.7 out of 5 by 159 drivers

California CDL Test Facts

  • Questions: 50
  • Correct answers to pass: 40
  • Passing score: 80%
  • Test locations: Department of Motor Vehicles (DMV) Offices
  • Test languages: English, Spanish
  • Based upon: California Commercial Driver Handbook
Improve your chances of passing the test by reading the official California drivers manual Drivers Manual

One of the great things about CDL practice tests is that they are by far no rocket science, you don't have to waste hours on figuring out how the system works, you can jump right into taking sample quizzes and learning the rules even if you have never taken a practice test before.  This commercial drivers license practice test for California consists of 20 general knowledge multiple choice questions that cover the state driving laws, traffic rules and road signs. Every question offers you two to four possible answers, only one of the answers is correct.  Now, when it comes to taking the real California CDL written test in 2021, you will notice that some of the questions have only three answers provided.  Don't worry about that, as it makes the real permit test even easier!  We have just added additional answers to these questions to make things a little more interesting and challenging while you're studying.

One of the common mistakes students make on the DMV CDL permit test is to select the first answer that seems right, without reading all other options.  This is a serious problem, it happens very frequently and that is why we decided to bring it up.  While you are working on this free California general knowledge CDL practice test, get into the habit of reading through all of the provided answers before you make your choice.  This will save you from making silly mistakes, you will improve your grades on this CDL practice permit test and you will be able to follow the same behavioral pattern while taking the real exam. 

Immediate feedback - we cannot overstress how important it is to be alerted to each and every mistake you make right there and then. Sure, the real CDL knowledge test doesn't do it, but you are not expected to learn during the real test, you are being TESTED and EVALUATED.  However, when you are studying, every error you make must be brought into the light immediately and our online California commercial license practice test 2021 does a great job at that!  Should you happen to miss a question (and we know it will happen once or twice), the CDL practice test will stop the test and display the right answer alongside the one you have chosen.  On top of that, the general knowledge test will come up with a detailed justification for that answer, providing you with more details about the road signs or driving rule that are being discussed by the question you've missed.  This is an important part: don't try and get through the CDL practice test as quickly as you can, skipping every one of those explanations, make sure you read them and understand them.  These explanations do a great job of helping you learn the actual rules, as opposed to simply memorizing answers to a bunch of questions, they will significantly increase your chances of passing the written test and make you a better driver once you get behind the wheel.  That's right, this free California CDL written test is not only good for passing the knowledge test the first time, it will also make you a better driver in the future!

Need more help?  Easy!  Just grab yourself a copy of the 2021 California CDL handbook, it is available on the DMV website absolutely free of charge!  Your knowledge exam is based on the information you can find in the manual and it supplements this free California CDL practice permit test (CA) 2021 awesomely!  Read the book first or keep it by your hand as you continue going through these sample quizzes, whatever works best for you!  Good luck at the DMV!