What is one major operational characteristic of typical power boilers regarding steam?

Power boilers are designed to operate at various pressure levels, which is a critical operational characteristic. This capability allows them to be versatile in different applications, such as providing steam for heating, power generation, or industrial processes. The ability to operate at different pressures is essential for meeting the specific requirements of the system they support.

Different industrial processes may require steam at low, medium, or high pressures, and the design of these boilers accommodates such needs. Furthermore, operating at higher pressures often enhances the efficiency of thermal cycles, allowing for better performance in energy production.

In contrast to the correct answer, the notion that power boilers produce steam at atmospheric pressure only is inaccurate, as these systems are not limited to a single pressure. While they can produce steam continuously under ideal conditions, interruptions may occur for maintenance or operational adjustments, making the statement about continuous production misleading. Additionally, the idea that they can only generate a little steam is fundamentally incorrect, as power boilers are specifically constructed to generate substantial quantities of steam for various industrial needs.