New Jersey Air Brakes Practice Exam

In an air brake system, the component that is responsible for storing air is the air tank. Air tanks are crucial because they hold compressed air that is used for operating the braking system. When the air compressor fills the tanks, the air is stored until needed to engage the brakes. This stored air is then released into the brake chambers to activate the brake components when the driver applies the brake pedal. Air tanks are designed to withstand high pressures and are equipped with safety features to prevent over-pressurization. Their capacity directly impacts the performance of the brake system, ensuring that there is always enough air available for reliable braking action. The other components mentioned, such as the brake drum, air compressor, and brake pedal, serve different functions within the air brake system but do not store compressed air specifically. The brake drum is part of the braking mechanism that helps slow down or stop the vehicle, the air compressor generates compressed air, and the brake pedal is the control mechanism used by the driver to engage the brakes.