Air Brakes Endorsement Pack

Pass the most failed CDL topic with FMCSA-sourced lessons, visual brake-system walkthroughs, and exam-style drills.

  • 100% sourced from the FMCSA CDL Manual
  • 14 video lessons + study guide + practice test
  • The exam has 25 questions. We cover every one.
Get This Pack – $49 Watch free preview

Pass or your money back

Complete the course, take the exam, and get a 100 percent refund within 30 days if you do not pass.

Free Video Previews

Air Brakes

3 min

Lesson 1: Air brake system components

Air Brakes

3 min

Lesson 2: Low-air warning and spring brakes

Air Brakes

3 min

Lesson 3: Stopping distance math

Unlock the Full Pack

Stop guessing. Know the answers. Unlock all 14 lessons, the printable study guide, the PSI cheat sheet, and the 50-question practice test for $49.

Unlock all 14 lessons – $49

Pass or your money back

Complete the course and take the exam. If you do not pass, we refund 100 percent within 30 days.

What’s Included

  • 14 Air Brakes video lessons with animated SVG diagrams
  • Printable study guide with FMCSA section citations
  • 50-question practice exam with answer key
  • Common fail-point checklist for pre-trip inspections
  • Lifetime course access with updates

Course Outline

1 Air Brake System Overview – 6:12

2 Compressor, Governor, and Tanks – 5:41

3 Low Air Pressure Warning Rules – 4:52

4 Spring Brake Activation Thresholds – 5:09

5 Dual Air Systems and Redundancy – 6:27

6 Brake Lag and Total Stopping Distance – 7:11

7 Drain Tanks and Moisture Management – 4:59

8 Pre-Trip Air Brake Test Step-by-Step – 8:03

9 Leak Test Tolerances by Vehicle Type – 5:34

10 Slack Adjuster Inspection Basics – 5:20

11 Manual vs Automatic Slack Adjusters – 4:35

12 Emergency Procedures and Recovery – 5:08

13 Exam Trick Questions Breakdown – 6:14

14 Final Practice Exam Review – 10:22

Frequently Asked Questions

The pack includes 14 video lessons with animated SVG diagrams, a printable study guide with FMCSA manual citations, a 50-question practice test, and a one-page cheat sheet of inspection steps and PSI numbers.

Yes. If you fail your air brakes endorsement exam after completing the full course, email your fail notice within 30 days for a 100 percent refund.

You get access instantly after purchase by email. Videos are on a private YouTube playlist, and the study guide and practice test are downloadable PDFs.

The air brakes knowledge test has 25 questions. You need 20 correct answers to pass.

The key numbers are 120 PSI for governor cut-out, 100 PSI for cut-in, 60 PSI for the low-air warning, and about 20 to 45 PSI for spring brake activation depending on how the test words the question.