Wastewater Class 4 Exam Virginia-With 100% Verified Solutions-

Which of the following is a type of positive displacement pump: Axial Turbine Educator Gear {Ans: Gear}Your ideal F:M ratio is 0.25 - 0.35. What action do you take if your measured F:M ratio is too LOW? {Ans: Increase the Waste rate.}Organic nitrogen is determined using {Ans: The kjeldahl method}How many times greater is the reduction rate of aerobic bacteria versus anaerobic bacteria? {Ans: 20 times - DOUBLE CHECK THIS ANSWER - NOT SURE OF THIS}Before repairing a pump's electrical circuit, what should you always make sure to do? {Ans: Disconnect the circuit breaker and Lock Out Tag Out}What causes bulking? {Ans: Mainly filamentous bacteria, then low pH. Sodium hypochlorite kills filamentous bacteria}