Florida Wastewater Practice Test

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Prepare for the Florida Wastewater Exam. Study with multiple choice questions and detailed explanations. Ensure your readiness with our comprehensive test materials!

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What is the best method to fix a falling chlorine residual when ice forms on the chlorine regulator?

Reduce the feed rate of chlorine
Place a second chlorine cylinder online
Increase the temperature of the chlorine lines
Replace the current chlorine cylinder

The correct answer is: Place a second chlorine cylinder online

When ice forms on the chlorine regulator, it indicates that there is an issue with the delivery of chlorine, specifically related to the pressure and temperature of the chlorine gas. Placing a second chlorine cylinder online is effective because it allows for the redistribution of the chlorine demand without overworking the existing cylinder. This additional cylinder can help ensure a stable chlorine residual even if one regulator is compromised due to icing. This method addresses the problem directly by ensuring that there is an adequate supply of chlorine available, which can mitigate fluctuations in residual chlorine levels while allowing time for the affected cylinder and regulator to recover from the icing. Other methods, such as reducing the feed rate or increasing the temperature of the chlorine lines, may not effectively address the immediate problem of the ice formation and could lead to further issues with disinfection efficiency. Additionally, simply replacing the current chlorine cylinder might be unnecessary if the existing cylinder could resolve the icing issue with appropriate adjustments or additional support like another cylinder.