Vermont CDL Pre-Trip Inspection: Brake Check (incl. Air Brakes) Test 2026

The brake check portion of a pre-trip inspection is where a lot of new CDL candidates lose points, and this Vermont CDL brake check test is built to close that gap. It covers testing the low air pressure warning by depleting the system with the engine off, confirming the parking brake holds the vehicle in place, and checking pushrod travel on the brake chambers for excessive slack.

This brake check test also covers the correct order of operations, since testing air brakes too early or skipping the low-pressure warning step entirely is a common mistake the Vermont DMV specifically watches for. Understanding why each check exists, not just performing it by rote, is what separates a driver who passes from one who gets flagged for skipping a step.

Practice this pre-trip brake check test until the sequence and its reasoning are both second nature. Vermont CDL applicants who nail this section during practice carry that same careful habit into real daily pre-trips once they are driving for a living.

Keep going:

• Vermont CDL Pre-Trip Inspection Practice Test
• Vermont CDL Pre-Trip Inspection Practice Test 2
• Vermont CDL Pre-Trip Inspection Test
• Vermont CDL Practice Test
• Vermont Air Brakes Practice Test
• Vermont CDL Combination Practice Test
• Vermont Hazmat Practice Test
• Vermont Class A CDL Practice Test
• Vermont CDL Practice Test

Every question traces back to the Vermont CDL Manual - skim the right-of-way and signs chapters before your retake.