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Water Treatment Operator Certification Exam Practice Questions and Answers

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Water Treatment Operator Certification Exam Practice Questions and Answers What is removed at the raw water intake? - ANSWER-Fish and debris What is more likely to be found in groundwater? - ANSWER-Trihalomethane What is most commonly used to control algae growth in reservoirs? - ANSWER-copper sulfate What are common filtration rates in gravity filtration? - ANSWER-2 to 10 GPM/. Leakage within a centrifugal pump is intended for what purpose? - ANSWER-Cool moving parts What is the definition of a grab sample? - ANSWER-A single sample of water collected at a particular time and place which represents the composition of the water only at that time and place. Adding sodium hypochlorite to water will have what effect? - ANSWER-Increase pH What is the purpose of the groundwater rule? - ANSWER-To protect the groundwater from disease- causing microorganisms What is true about the total coliform rule? - ANSWER-Establishes an MCL based on the presence and absence of total coliform or E. coli What will happen to the water quality if chlorine is injected at the same location as power activated carbon (PAC)? - ANSWER-Chlorine will react with carbon and neutralize the effects of both What reacts with chlorine to form trihalomethane? - ANSWER-Natural organic matte

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Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024




Water Treatment Operator Certification

Exam Practice Questions and Answers


What is removed at the raw water intake? - ANSWER✔✔-Fish and debris


What is more likely to be found in groundwater? - ANSWER✔✔-Trihalomethane


What is most commonly used to control algae growth in reservoirs? - ANSWER✔✔-copper sulfate


What are common filtration rates in gravity filtration? - ANSWER✔✔-2 to 10 GPM/sq.ft.


Leakage within a centrifugal pump is intended for what purpose? - ANSWER✔✔-Cool moving parts


What is the definition of a grab sample? - ANSWER✔✔-A single sample of water collected at a particular

time and place which represents the composition of the water only at that time and place.


Adding sodium hypochlorite to water will have what effect? - ANSWER✔✔-Increase pH


What is the purpose of the groundwater rule? - ANSWER✔✔-To protect the groundwater from disease-

causing microorganisms


What is true about the total coliform rule? - ANSWER✔✔-Establishes an MCL based on the presence and

absence of total coliform or E. coli


What will happen to the water quality if chlorine is injected at the same location as power activated

carbon (PAC)? - ANSWER✔✔-Chlorine will react with carbon and neutralize the effects of both


What reacts with chlorine to form trihalomethane? - ANSWER✔✔-Natural organic matter


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