What to Expect from the CDL Written Exam

When you attend truck driving school, the final step in starting your career is earning your CDL. The CDL has a skills/road test component as well as a written, knowledge component. To earn a license, applicants must score at least 80% on the written part of the test. The test can be retaken as soon as the next day if you do not meet the 80% requirement. Here is a look at what you can expect.

The test is multiple choice.

The questions on the test are in multiple choice format. Although tests are subject to change, the CDL test general has 50 multiple choice questions, of which you must get 40 right to achieve a passing grade. There is no time limit, but test will automatically stop if you miss too many questions to receive an 80% on the test. If you do not pass the test, you will be given the opportunity to book another attempt. You can’t attempt the test twice in one day but can take a retest the next day.

Questions are taken from the state CDL manual.

Arizona’s CDL manual has all of the information that you need to study to pass the test. Questions are taken from each part of the manual and may cover information ranging from vehicle inspections and road signs to shifting techniques, railroad crossing safety, and state drunk driving laws. You should be familiar with all of the information in the manual, as it is all fair game for the test.

There are strict rules about what you can bring in the test room.

You must go into the testing room alone. Kids must wait in the waiting room. You will not be allowed to bring in phones or electronic dictionaries. You can keep bags and purses with you, but you’ll put them in a place in the room that is away from the computer on which you’ll take the test.


Yuma Truck Driving School helps aspiring truck drivers launch their careers with the education and training they need to succeed. To learn more about becoming a truck driver, call (888) 647-3239.