Air brakes are a type of braking system commonly used in large vehicles like trucks and buses. They operate using compressed air to apply pressure to the brake pads, which then clamp down on the brake drums or discs. This system is effective for heavy loads, providing strong stopping power and reducing wear on the brakes. The air brake system consists of several components, including an air compressor, air tanks, and brake chambers. When the driver presses the brake pedal, air is released from the tanks, activating the brakes. This design allows for more reliable braking performance, especially in demanding conditions.