Water Nuggets Practice Exam 2025 – Complete Study Resource

The selection of compound-loop control gas feeder as suitable equipment for feeding chlorine gas in distribution systems requiring re-chlorination is rooted in its ability to precisely manage chlorine dosing based on real-time water quality parameters. This type of feeder utilizes feedback from sensors that monitor chlorine levels, allowing it to automatically adjust chlorine inputs to maintain optimal disinfection conditions.

When re-chlorination is necessary, such as in long distribution lines where chlorine residuals may decline, the compound-loop control system ensures that the dosing is not only accurate but also responsive to the dynamics of the water system. This capability is critical for maintaining consistent chlorine levels, preventing bacterial regrowth, and ensuring water safety.

Other equipment options may be effective in various contexts; however, they do not incorporate the same level of control and responsiveness required for re-chlorination in a dynamic distribution system. Therefore, the compound-loop control gas feeder stands out as the most suitable choice for this specific application.