What is the purpose of the air brake test?

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The purpose of the air brake test is to ensure that the air brake system of a commercial vehicle is functioning properly. This is crucial for safety, as the air brake system is responsible for effectively slowing down and stopping the vehicle. A well-functioning air brake system helps prevent accidents caused by brake failure, which can happen if there are leaks, insufficient air pressure, or other mechanical issues. During the air brake test, various checks are performed, including the functionality of the brake pressure gauge, the responsiveness of the brakes, and the ability to hold air pressure over time. Ensuring that the brakes operate correctly is fundamental for the safe operation of a commercial vehicle on the road.