Free Iowa CDL Air Brakes Test (IA)
- Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
- Based on 2024 IA commercial driver's license manual
- Triple-checked for accuracy
- Updated for July 2024
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What you need to know
Today, you will be taking a practice exam, based on information from the Iowa Commercial Driver License Manual, to prepare for the exam that will allow you to drive vehicles with air brakes. The questions have been written based closely on the kinds that you will find on the real DMV exam, so practice often, and pay close attention to the hints and explanations included. Reading them will help you prepare to answer questions in the future on your air brake exam. Keep studying, practice until you have a score you feel confident in, and keep driving 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 exam
questions
correct answers to pass
passing score
Helpful links
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