FREE MI CDL Air Brakes Marathon

MI commercial driver's license
Michigan Commercial Driver's License.

Ready for something a little different? This Michigan CDL Air Brakes Marathon is a massive practice test that contains a combination of all 119 questions that we have available for this MI endorsement. If you make a mistake, 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”. Good luck!

Available with a CDL Premium account

Pass the knowledge test, or get your money back. Guaranteed.

  • 32 Members-Only practice tests across all endorsements
  • 400+ additional questions (including the ones most people miss!)
  • 6 Exclusive Cheat Sheets (including the DMV's 171 most frequently asked questions)
  • Study and track your progress on any device, anywhere

PLUS: No ads, unlimited re-takes, our Pass Guarantee, and more!

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Michigan CDL Air Brakes Test Fact Sheet:

How many questions:25
How many correct answers to pass:20
Passing score:80%

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View the most recent (2018) official MI CDL Handbook.

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