Which of the following are the main components of a pneumatic system?

The selection of compressors, valves, actuators, and piping as the main components of a pneumatic system is indeed accurate.

Compressors are essential because they generate the compressed air that serves as the energy source for pneumatic systems. This compressed air is stored and then directed through the system to perform various tasks. Valves control the flow of this compressed air, allowing for the regulation and direction of the air to different parts of the system as needed. Actuators, such as cylinders, convert the energy of the compressed air into mechanical motion, performing the actual work within the system, whether it's moving a load or applying force. Lastly, piping is necessary to transport the compressed air from one component to another, effectively connecting the system's various elements.

Each of these components plays a critical role in ensuring the efficiency and functionality of a pneumatic system, highlighting their importance in the overall operation of pneumatic applications.