Wastewater New York State Practice Exam

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What is the purpose of a turnbuckle on the stay rod of a trickling filter?

To secure the rod
To adjust and level the distributor arm
To connect two pipes
To measure flow rate

The correct answer is: To adjust and level the distributor arm

The purpose of a turnbuckle on the stay rod of a trickling filter is to adjust and level the distributor arm. In wastewater treatment systems, particularly in trickling filters, maintaining the correct position of the distributor arm is crucial for ensuring even distribution of wastewater over the filter media. A turnbuckle allows for fine-tuning adjustments to the tension of the stay rod, which in turn helps achieve the precise angle and height needed for optimal operation. This adjustment facilitates uniform flow and enhances the treatment efficiency of the filter, as uneven distribution can lead to areas of over-saturation or dry spots on the media. While securing the rod, connecting two pipes, and measuring flow rate may involve other components or methods, these actions do not directly relate to the primary function of a turnbuckle in this context. The turnbuckle is specifically designed for leveling, making it an essential component for maintaining the effectiveness of the trickling filter process.