Water Treatment
Bridgewater State University
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Exam (elaborations)
WASTEWATER TREATMENT OPERATOR CERTIFICATION TEST #2 2023 QUESTIONS AND ANSWERS ALREADY PASSED A+
What is the typical BOD removal efficiency in a primary clarifier? A) 10 to 15% B) 40 to 60% C) 20 to 50% D) 95 to 99% - CORRECT ANS C) 20 to 50% (v.1 pg 129) What does the "F" in F/M ratio represent? A) The microorganism population in the aeration tank B) The amount of filamentous bacteria in the activated sludge process C) The MLVSS in the aeration tank D) The food for the microorganisms flowing into the aeration tank, in lbs/day - CORRECT ANS D) The food for the micro...
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Exam (elaborations)
Water Treatment Practice Certification Exam 2022/2023 Latest Quiz
PopularWater Treatment Practice Certification Exam 2022/2023 Latest Quiz
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Exam (elaborations)
WASTEWATER PRACTICE EXAM 2023 QUESTIONS AND ANSWERS ALREADY PASSED A+
Odors occur when treatment becomes - CORRECT ANSWER Anaerobic What should an operator do before entering a manhole - CORRECT ANSWER Test for all hazardous gases and oxygen levels and ventilate the manhole before entering What treatment devices is commonly used to separate and remove large solids from raw wastewater - CORRECT ANSWER a mechanically raked bar screen What diseases are caused by pathogenic organisms that may be present in raw wastewater? - CORRECT ANSWER He...
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Exam (elaborations)
WASTEWATER TREATMENT OPERATOR CERTIFICATION TEST #1 2023 QUESTIONS AND ANSWERS ALREADY PASSED A+
What is the methane content in a properly operation anaerobic digester? A) 30 to 35% by volume B) 1 to 2% by volume C) 65 to 70% by volume D) 15 to 20% by volume - CORRECT ANSWER C) 65 to 70% by volume (v.2 pg 158) What will the addition of chlorine gas do to the pH of wastewater? A) Moderately increase pH B) pH will not be affected C) Significantly increase the pH D) Decrease the pH - CORRECT ANSWER D) Decrease the pH (v.1 pg 349-350) What is the purpose of a Parshall f...
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Exam (elaborations)
WATER TREATMENT OPERATOR CERTIFICATION STUDY GUIDE (AWWA) 2023 QUESTIONS AND ANSWERS ALREADY PASSED A+
A continuously flowing watercourse - CORRECT ANS Perennial Stream Algae causes PH to ....... at night - CORRECT ANS Decrease What contributes to creation of algae blooms - CORRECT ANS Increased nutrients Iron is found mostly in what sources of water - CORRECT ANS Groundwater Also called the rule of reasonable sharing - CORRECT ANS Riparian Doctrine Water high in salinity and warm is - CORRECT ANS Low in dissolved oxygen Reservoir turnover - CORRECT AN...
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Exam (elaborations)
PRACTICE CERTIFICATION EXAM FOR WATER TREATMENT 2023 QUESTIONS AND ANSWERS ALREADY PASSED A+
Investigate immediately. - CORRECT ANS If a consumer complains about the drinking water characteristics, the operator should record the complaint and Operating ratio - CORRECT ANS What term is used when a water utility divides its total operating expenses into the total revenue? Daily - CORRECT ANS How often should operating data, such as flow rate, amount of water treated, dosage of chemical, and reservoir levels be recorded? Document that safe drinking water has been delivere...
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