IA CDL Air Brakes Marathon
What to expect on the actual IA CDL exam
- 20correct answers to pass
- 80%passing score
Ready for something a little different? This Iowa CDL Air Brakes Marathon is a massive practice test that contains a mixture of all 183 questions that we have available for this IA endorsement. If you give an incorrect answer, we’ll remember that question and will display it to you again at the end of the exam until you’ve answered that question correctly. In other words, the Marathon will cycle through your missed questions until you answer each one correctly. You must make a 100% to pass. We suggest you attempt this one after you have practiced the state’s “regular” tests, but before the “Exam”. Give it your best shot!
IA CDL Handbook
View the most recent (2023) official IA CDL Handbook.Explore