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Free Colorado CDL Air Brakes Test 2024 | CO

Part of mandatory Entry-Level Driver Training Course Based on 2024 CO commercial driver's license manualAvailable in EN, ES
30questions
6mistakes allowed
80%passing score

Your knowledge of air brakes will be tested with 30 multiple-choice questions that will make you more prepared for your upcoming DMV exam, and help you to become a safer driver.

Each question is based on information you can find in the Colorado Commercial Driver License Driver Manual and applicable Colorado laws. We recommend reviewing the explanation that accompanies each question so that you will be prepared to answer future questions about the material covered in this practice exam.

Good luck, practice until you feel confident, and drive safely!

4.43 out of 5 • 35 votes.

Perfect for

  • First-time CO CDL and CLP applicants
  • CDL holders adding endorsements
  • CO CDL renewal applicants
CO commercial driver's license

What to expect on the actual CO DMV exam

How many questions25
How many correct answers to pass20
Passing score80%

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More CO CDL Air Brakes Resources

Helpful resources

CO CDL Handbook

View the most recent (2024) official CO CDL Handbook.

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CO CDL Practice Test App

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CDL Genie app

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10 Things You Should Do Before Your Driving Knowledge Exam (PDF)