Written by Andrei Zakhareuski. With over 16 years of expertise, Andrei leads Driving-Tests.org, a top online resource for driver education. His leadership has established vital partnerships with over 2,600 libraries, educational bodies, and state agencies.

Quick Summary: This guide covers free practice tests for every U.S. state and everything you need to know about the CDL Air Brake Test, vital for drivers of commercial vehicles with air brake systems. Prepare effectively to ensure safety and compliance on the road.

In a hurry? Jump to a free Air Brakes practice test:

  • Alabama - AL - Alabama Air Brakes Practice Test
  • Alaska - AK - Alaska Air Brakes Practice Test
  • Arizona - AZ - Arizona Air Brakes Practice Test
  • Arkansas - AR - Arkansas Air Brakes Practice Test
  • California - CA - California Air Brakes Practice Test
  • Colorado - CO - Colorado Air Brakes Practice Test
  • Connecticut - CT - Connecticut Air Brakes Practice Test
  • Delaware - DE - Delaware Air Brakes Practice Test
  • District of Columbia - DC - District of Columbia Air Brakes Practice Test
  • Florida - FL - Florida Air Brakes Practice Test
  • Georgia - GA - Georgia Air Brakes Practice Test
  • Hawaii - HI - Hawaii Air Brakes Practice Test
  • Idaho - ID - Idaho Air Brakes Practice Test
  • Illinois - IL - Illinois Air Brakes Practice Test
  • Indiana - IN - Indiana Air Brakes Practice Test
  • Iowa - IA - Iowa Air Brakes Practice Test
  • Kansas - KS - Kansas Air Brakes Practice Test
  • Kentucky - KY - Kentucky Air Brakes Practice Test
  • Louisiana - LA - Louisiana Air Brakes Practice Test
  • Maine - ME - Maine Air Brakes Practice Test
  • Maryland - MD - Maryland Air Brakes Practice Test
  • Massachusetts - MA - Massachusetts Air Brakes Practice Test
  • Michigan - MI - Michigan Air Brakes Practice Test
  • Minnesota - MN - Minnesota Air Brakes Practice Test
  • Mississippi - MS - Mississippi Air Brakes Practice Test
  • Missouri - MO - Missouri Air Brakes Practice Test
  • Montana - MT - Montana Air Brakes Practice Test
  • Nebraska - NE - Nebraska Air Brakes Practice Test
  • Nevada - NV - Nevada Air Brakes Practice Test
  • New Hampshire - NH - New Hampshire Air Brakes Practice Test
  • New Jersey - NJ - New Jersey Air Brakes Practice Test
  • New Mexico - NM - New Mexico Air Brakes Practice Test
  • New York - NY - New York Air Brakes Practice Test
  • North Carolina - NC - North Carolina Air Brakes Practice Test
  • North Dakota - ND - North Dakota Air Brakes Practice Test
  • Ohio - OH - Ohio Air Brakes Practice Test
  • Oklahoma - OK - Oklahoma Air Brakes Practice Test
  • Oregon - OR - Oregon Air Brakes Practice Test
  • Pennsylvania - PA - Pennsylvania Air Brakes Practice Test
  • Rhode Island - RI - Rhode Island Air Brakes Practice Test
  • South Carolina - SC - South Carolina Air Brakes Practice Test
  • South Dakota - SD - South Dakota Air Brakes Practice Test
  • Tennessee - TN - Tennessee Air Brakes Practice Test
  • Texas - TX - Texas Air Brakes Practice Test
  • Utah - UT - Utah Air Brakes Practice Test
  • Vermont - VT - Vermont Air Brakes Practice Test
  • Virginia - VA - Virginia Air Brakes Practice Test
  • Washington - WA - Washington Air Brakes Practice Test
  • West Virginia - WV - West Virginia Air Brakes Practice Test
  • Wisconsin - WI - Wisconsin Air Brakes Practice Test
  • Wyoming - WY - Wyoming Air Brakes Practice Test

Test Overview

The written part of the Air Brakes CDL Test focuses on assessing your knowledge of air brake systems, including system components, operation, and safety protocols.

How to Make Sure You Pass

1

Study the Components

Begin with learning about air brake system components and their functionality. Knowing each part’s role is crucial for understanding the entire system.

2

Practical Experience

Gain hands-on experience with air brake systems, if possible. This could include training courses or practicing with a qualified instructor.

3

Practice Tests

Utilize free Air Brake practice tests for assessing your readiness and familiarizing yourself with the test format.

4

Pre-Trip Inspection Practice

Practicing performing a pre-trip inspection is essential, as this is a critical part of the practical exam and daily operation of air brake systems.

Exam Details and Requirements

Exam FeatureDetails
Number of QuestionsTypically 25 multiple-choice
Passing ScoreApproximately 80%, varies by state
Time LimitAround 1-2 hours, varies by state
Key TopicsAir brake system components, function, maintenance, inspection, proper usage, troubleshooting
Test FormatComputer-based in most states; practical component includes hands-on tasks
Retake PolicyVaries by state; waiting period and fee may apply for retakes
PrerequisitesValid CDL; age, medical, and knowledge requirements as per state regulations

Key Components of the System

Frequently Asked Questions

Key Topics Covered

Expect to be tested on air brake system parts, inspection protocols, proper usage, and emergency response.

Passing Criteria

You will need a score of 80% or higher to pass, which translates to correctly answering at least 20 out of 25 questions.

Pro Tip: During the test, take your time with each question and remember the practical applications of what you’ve studied. Theory when backed by practical understanding is a winning combo for the CDL Air Brake Test.

Sample Questions

To give you a taste of what to expect in the actual CDL Air Brake Test, here are some sample questions. Use these to gauge your understanding and practice answering.

Remember, these questions are just samples. For more comprehensive preparation, utilize the full suite of practice questions available at Driving-Tests.org.

The key to success is a blend of comprehensive study, practical understanding, and a calm approach to the test. Utilize all available resources and take the time to fully grasp the intricacies of air brake systems.

What Happens After You Pass?

Once you’ve passed the test, you’ll be equipped to drive vehicles with air brakes, a skill that expands your employability and opportunities within the commercial driving industry.

Ready to start preparing? Visit Driving-Tests.org for comprehensive study guides and free practice tests to ensure you’re ready to ace your CDL Air Brake Test.

Secure your CDL with confidence!

Our exclusive CDL Premium program offers comprehensive online training with an ELDT certificate, authentic exam questions, and a solid Pass Guarantee, starting at only $69. Ideal for first-time applicants, seasoned drivers, and those new to the U.S. road rules.

Explore CDL Premium

Was this page helpful?