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Water Treatment Operator Certification Study Guide 2024 Actual Questions and Answers with complete solution
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Water Treatment Operator Certification Study Guide 2024 Actual Questions and Answers with complete solution

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  • August 26, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • water treatment operator certification study guide

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  • CNA - Certified Nursing Assistant
  • CNA - Certified Nursing Assistant

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Water Treatment Operator Certification Study Guide (AWWA)




1.A continuously flowing watercourse: Perennial Stream

2.Algae causes PH to ....... at night: Decrease

3.What contributes to creation of algae blooms: Increased nutrients

4.Iron is found mostly in what sources of water: Groundwater

5.Also called the rule of reasonable sharing: Riparian Doctrine

6.Water high in salinity and warm is: Low in dissolved oxygen

7.Reservoir turnover: Denser water at surface sinking toward the bottom

8.Water that flows into rivers after rainfall: Surface runoff

9.Recreation can ....... of land adjacent to a reservoir: increase the

threat of erosion

10.Water bearing geological zone composed of material deposited by

flowing rivers: Alluvial aquifer

11.What effect will algae have on dissolved oxygen: Increase DO during the

day and lower DO during the night

12.How does alkalinity effect the use of copper sulfate: Copper sulfate is

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7

, more effective as alkalinity decreases

13.The amount of water in a formation depends on.....: The porosity of

the water-bearing formation

14.What enables blue green algae to grow: Nutrients

15.Recommended loading rate of copper sulfate for algae control: 5.4 lbs

per acre of surface area

16.Primary origin of coliform bacteria: Animal or human feces

17.Amount of water a well produces for each foot of drawdown:

Specific capacity

18.Most common well used in public water supply: Drilled well

19.What is disinfection: inactivation or killing of pathogenic organisms

20.free chlorine residual valus are based on a contact time of....: 10 minutes

21.Strength of Calcium Hypochlorite: 65-70%

22.What chemicals raise PH in water: Soda Ash, Caustic Soda,

23.As water temp increases, disinfection action.........Increases

24.Maximum chlorine usage per day from a 150lb cylinder: 42 lbs

25.What chemical is used to soften water through chemical precipitation:

Cal- cium hydroxide (lime)

26.Mudballs are clumps of........: Filter media and other material
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