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Water Treatment Final Exam Practice Questions and Answers Whats a rapid method of estimating total dissolved content of a water supply? - ANSWER-Specific conductance Waterfall aeration devices may cause what type of problems? - ANSWER-Encourage biological growth If a person is poisoned by inh...

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  • November 4, 2024
  • 11
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • water treatment final exam practice questions and

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KaylinHoffman

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




Water Treatment Final Exam Practice

Questions and Answers


Whats a rapid method of estimating total dissolved content of a water supply? - ANSWER✔✔-Specific

conductance


Waterfall aeration devices may cause what type of problems? - ANSWER✔✔-Encourage biological

growth


If a person is poisoned by inhaling fluoride what is the first symptom? - ANSWER✔✔-Sharp biting pain to

the nose followed by a runny nose or a nose bleed


Drinking water waste is considered what type of waste? - ANSWER✔✔-Industrial


pH kept at ____ will precipitate calcium carbonate? - ANSWER✔✔-10


Excess pink water can be caused by what? - ANSWER✔✔-Potassium permanganate overdose


Pressure in a distribution system should not fall below what level? - ANSWER✔✔-20psi


What is the MCL for Trihalomethanes - ANSWER✔✔-0.08 milligrams per liter


Shortened filter runs can occur because of air bound filters, why is this? - ANSWER✔✔-Caused by the

release of dissolved air in saturated cold water due to a decrease in pressure


What is the most expensive aeration device? - ANSWER✔✔-Mechanical




Copyright ©Stuvia International BV 2010-2024 Page 1/11

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


In the Ion exchange process, calcium(Ca) and magnesium(Mg) Ions are exchanged for what? -

ANSWER✔✔-Na- Ions


What are the four stages of the operation of an ion exchange softener? - ANSWER✔✔-Service, Brine,

Backwash, Rinse


What is the chief cause of accidents? - ANSWER✔✔-Carelessness/ negligence


Drinking water should be free of what 2 things? - ANSWER✔✔-Bacteria and toxins


Ton tanks have how many fusible metal safety plugs on each ends? - ANSWER✔✔-3 to 4- each side


If you have positive sample for total coliform, do what? - ANSWER✔✔-Repeat samples are required (3)

tap upstream and downstream


Filters are clogged by what, that can cause head loss? - ANSWER✔✔-Algae/ aquatic micro organisms


What is the meaning of eutrophic - ANSWER✔✔-High nutrient content


What is a bubbler tube used for? - ANSWER✔✔-Measuring the depths of a well


What is the primary advantage of vacuum system chlorination? - ANSWER✔✔-Safety


When chlorine and ammonia are added to water what is formed? - ANSWER✔✔-Chloramines


What is tapered energy mixing? - ANSWER✔✔-Reduction of speed or surface area of the paddle or basin


What is the best appearance of a floc particle? - ANSWER✔✔-Discrete (separate) fairly dense


What is a cross connection? - ANSWER✔✔-Connection between a drinking water supply and a

unapproved water supply


What is the meaning of MCL? - ANSWER✔✔-Maximum contaminant level, (largest allowable amount)

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