Wastewater Operator

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Wastewater Operator Exam Questions And Answers 100% Pass How is sludge determined? - ANS MCRT What is a sludge blanket? - ANS layer of solids on the bottom of the clarifier How much oxygen depletion is needed for a valid BOD test? - ANS 2 mg/L The highest removal efficiencies in an RBC will occur in? - ANS Warm weather What are the predominant organisms indicative of old sludge? - ANS Rotifers and nematodes For security purposes where should a POTW/WRRF be built? - ANS Hidden from view W...

Wastewater Operator (class 1)

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Wastewater Operator Class D Exam Questions and Answers. The natural exchange of water between the earth and the air - Correct Answer hydrologic cycle ______________ causes surface water to enter the atmosphere and begin the Hydrologic Cycle - Correct Answer Evaporation Rain or snow falling from the clouds - Correct Answer Precipitation what causes water vapor to form clouds - Correct Answer Condensation generally better protected

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