What is the first step in conducting an air brake inspection?

The first step in conducting an air brake inspection is to chock the wheels. This is a crucial safety measure that prevents the vehicle from rolling while the inspection is underway. By securing the vehicle with chocks, it ensures that no unexpected movement occurs, allowing the person conducting the inspection to work safely and thoroughly.

Once the wheels are chocked, the inspector can then move on to other aspects of the inspection, such as checking air pressure, testing the brakes, and inspecting the tires. Each of these steps is important in maintaining the proper functioning of the air brake system, but starting with chocking the wheels establishes a safe environment for the entire process.