Free ID CDL Diagnostic Test 2023
What to expect on the actual ID CDL exam
- 40correct answers to pass
- 80%passing score
To get a rough idea of how much you know about commercial driving rules in Idaho, try our ID CDL diagnostic test. It contains 30 multiple-choice questions on a variety of topics in commercial driving: air brakes, hazardous materials, buses, combination vehicles, and tanker trucks. This test will help you quickly identify gaps in your knowledge of commercial driving, which will be especially useful if you’re just starting to prepare for the CDL knowledge exams. Each practice question includes a picture and has four possible answers. Choose the most complete and correct answer for each question. Each question also comes with an optional hint if you need it and an explanation of the correct answer. Try our CDL diagnostic test and see whether you are ready for the real thing. Good luck, and drive safely!
ID CDL Handbook
View the most recent (2023) official ID CDL Handbook.Explore