What is achieved through the two settings found on the boiler operating pressure control?

The correct choice focuses on the primary function of the two settings on the boiler operating pressure control, which is to establish and regulate the operating steam pressure range. These settings allow for precise control over the steam pressure within the boiler system, ensuring that it operates within safe and efficient parameters. By being able to set a minimum and maximum pressure, operators can manage steam generation effectively and ensure that the system runs optimally, which is essential for maintaining overall performance and safety.

This control is crucial, as maintaining appropriate steam pressure levels directly impacts the efficiency of steam delivery to different parts of the system, supporting machinery and processes that rely on steam energy. It also helps to prevent overpressure situations, which can lead to equipment failure or safety hazards. Therefore, the ability to set a range for operating steam pressure is fundamental to the safe and effective operation of boiler systems.