Free New Hampshire CDL Air Brakes Test 2025

Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
Based on 2025 NH commercial driver's license manual
Triple-checked for accuracy
Updated for March 2025

Failure to pass the New Hampshire DMV CDL Air Brakes Knowledge Test means that your CDL will include the restriction “L,” preventing you from operating commercial motor vehicles (CMVs) with air brakes. This “L” restriction will negatively affect your job prospects in this market. Failing the air brakes test in New Hampshire results in a one-day waiting period and a fee should you decide to retake the test. Our New Hampshire DMV CDL Air Brakes Practice Tests are the perfect tool for passing your knowledge exam on the first attempt.

Navigating New Hampshire’s diverse terrain, including the steep grades of Mount Washington and the winding roads of the Kancamagus Highway, requires a reliable air brake system. This need for air brakes is only compounded by winter ice and snow. Key transportation routes in New Hampshire include I-93 (a major north-south route connecting Boston, NH’s Lakes Region, and the White Mountains), US-4 (an important east-west highway linking rural to urban areas), and US-112 (Kancamagus Highway) (a mountain road with steep grades and sharp curves). Most semi-trucks, tractor-trailers, and commercial buses rely on air brakes for safe travel. Hence, removing the air brake restriction from your CDL is vital for expanded job opportunities.

The Granite State relies on drivers with the air brake qualification in key industries, including forestry, manufacturing, and tourism. Companies requiring the air brake qualification include Land Air Express (Bow) and L.A. Limousine (Manchester) in the trucking industry and Concord Coach Lines (Concord) and Dartmouth Coach (Lebanon) in the charter bus sector. Timberwolf Logging (Littleton), BW Timber Harvesting (North Haverhill), and Lumberjack Logging Company, LLC (Goffstown) are major logging industry companies requiring air brake-qualified drivers. Furthermore, New Hampshire’s school districts use air brakes on their full-size buses, employing hundreds of air brake-qualified drivers. The “L” restriction makes these jobs unattainable.

The written Air Brakes knowledge test features multiple-choice questions based on the state’s CDL manual (New Hampshire CDL Handbook 2025) and requires a minimum passing score of 80%. On our practice tests, you’ll receive instant feedback on all your responses, helping you learn faster and ensuring you pass the knowledge test. As a bonus, the information you learn will also help you prepare to pass your skills test!

Our CDL Air Brakes Practice Tests cover everything needed and mimic the official DMV Air Brakes Knowledge Test.

9 min to complete

Available in EN and ES

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What to expect on the actual NH DMV exam

questions

correct answers to pass

80%

passing score

Helpful links

NH DMV website

Official New Hampshire CDL manual (2025)

More NH DMV Written Exam Resources

NH CDL Air Brakes Test (you are here)

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Our commitment to accuracy and quality in our practice tests

Explore our rigorous, multi-tiered verification process that ensures each question mirrors the official manual for unparalleled accuracy.

Written by Andrei Zakhareuski Updated over a week ago

At Driving-Tests.org, we understand the importance of reliable and accurate practice tests to help you prepare for your DMV exam. That's why we've developed a meticulous process to create and continually update our practice questions, ensuring they reflect the most current driving laws and regulations.

Here's an inside look at how we maintain the highest quality in our practice tests.

Content Creation and Verification Process

Alignment with Official Manuals:
Every question we develop is based on the most recent version of each state's official driving manual. Our team regularly monitors each state DMV's website for the latest updates to ensure our practice tests are always aligned with the most current information.
Community Feedback Integration:
We leverage feedback from our vast community of users to understand which topics are most frequently tested. This helps us focus on the areas that are most relevant and beneficial for your preparation.
Expert Content Creation:
Our in-house editor, Steven, who has extensive experience in driver education, crafts each question with precision. He conducts a thorough review of each question against the official manuals to ensure accuracy.
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Our thorough quality control process ensures that you have access to practice tests that are as accurate and up-to-date as possible. We believe in the power of well-prepared drivers and are dedicated to providing you with the best study tools to help you succeed on your DMV exam.

FREE New Hampshire CDL Air Brakes Test

Our CDL Air Brakes Practice Tests cover everything needed and mimic the official DMV Air Brakes Knowledge Test.

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