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Free Missouri CDL Air Brakes Test (MO)

  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
  • Based on 2024 MO commercial driver's license manual
  • Updated for June 2024
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
Commercial Driver's License

About this test

9 min to complete
Available in EN and ES

Today, you will be taking a practice exam that will prepare you for the real Missouri CDL air brakes exam. Passing this exam will allow you to either receive a CDL without an air brakes restriction or have the restriction removed from your current CDL, opening up new possibilities for your driving career. These questions is based on information directly from the Missouri Commercial Driver License Manual so read each explanation closely, as they may help you answer future questions correctly on the real CDL exam. Practice as often as you desire, and in no time at all, you will be comfortable enough to take the CDL air brakes exam with ease. Good luck and drive safely!

To fully understand the Air Brakes endorsement process and to master the material for the written exam, explore our detailed guides on the Air Brake endorsement and the Air Brakes written test.

What to expect on the actual MO CDL exam

25

questions

20

correct answers to pass

80

passing score

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