Which of the following systems includes a governor, dryer, safety valve, and supply tank?

The AD-IS is a type of air brake system commonly used in commercial vehicles, designed to efficiently manage the air supply and enhance the reliability and safety of the braking system. This system includes essential components such as a governor, which regulates air pressure; a dryer, which helps remove moisture from the compressed air; a safety valve, which ensures safe operation by releasing excess pressure; and a supply tank, which stores compressed air for braking.

Each of these components plays a vital role in maintaining optimal performance. The governor ensures that air pressure remains within specific limits, allowing the brakes to function properly. The dryer is critical in preventing moisture buildup, which can lead to freezing and braking issues in colder temperatures. The safety valve acts as a precautionary measure, protecting the system from overpressure situations. The supply tank is where the compressed air is stored until it is needed for brake application, ensuring that there is always an adequate supply of air available.

The other systems mentioned do not incorporate all these elements together. For instance, while some may have a governor or a dryer, they typically lack the complete set of features found in the AD-IS system, thereby not achieving the same level of efficiency and safety. Understanding these components helps clarify why the AD-IS system