All your missed questions are saved
automatically for extra practice.
It's a practice test that's automatically made up of all your missed questions. Once you finish this test, you’ll be able to revisit your Challenge Bank™ to practice and sharpen your skills.
View All PlansAdding difficult questions to Challenge Bank™ is an exclusive Premium feature. Unlock access to 650+ exam-like questions, a Pass Guarantee, personalized study plans, and more.
View All Plans- Updated for May 2025
- Based on 2025 MI commercial driver's license manual
MI CDL School Bus Marathon
Get ready for your MI School Bus endorsement exam with this marathon practice test. Unlike our regular practice tests, it’ll cycle through all of the available questions until you have answered all of them correctly. If you miss a question, we’ll show it to you again at a later point.
- Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
- Triple-checked for accuracy
About this test
What to expect on the actual MI DOS exam
questions
correct answers to pass
passing score
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