Minnesota Boiler License Practice Exam

What is the function of a feed water regulator?

1. Controls temperature of water

2. Controls solids in the water of boiler

3. Controls water level in a boiler

4. Preheats the feed water

The correct answer is: Controls water level in a boiler

The function of a feed water regulator is integral to maintaining the proper operation of a boiler system. Its primary role is to regulate the water level within the boiler, ensuring that there is always an appropriate amount of water available for steam generation. This is crucial because maintaining the correct water level helps prevent issues such as overheating and damage to the boiler components, as well as ensuring efficient steam production. In a boiler system, if the water level falls too low, it can lead to a condition known as "dry firing," where the boiler’s heating surfaces are exposed without sufficient water coverage, potentially causing significant damage. Conversely, if the water level is too high, it can lead to water carryover, where water is entrained in the steam, potentially damaging downstream equipment or impacting process efficiency. Therefore, the feed water regulator continually monitors and adjusts the water supply to maintain the desired water level, ensuring safe and efficient boiler operation. While controlling the temperature of water, the solids in the water, and preheating the feed water are important aspects of boiler operation, they are not the primary functions of a feed water regulator. Instead, these functions may be managed by other components within the boiler system, such as water treatment systems, heat exchangers, and temperature controls