Water Treatment Operator Certification Study Guide (AWWA) Questions And Answers Rated A+.
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Course
Water Treatment Operator Certification
Institution
Water Treatment Operator Certification
Water Treatment Operator Certification Study Guide (AWWA) Questions And Answers Rated A+.
A continuously flowing watercourse - correct answer. Perennial Stream
Algae causes PH to ....... at night - correct answer. Decrease
What contributes to creation of algae blooms - correc...
Water Treatment Operator Certification
Study Guide (AWWA) Questions And
Answers Rated A+.
A continuously flowing watercourse - correct answer. Perennial Stream
Algae causes PH to ....... at night - correct answer. Decrease
What contributes to creation of algae blooms - correct answer. Increased nutrients
Iron is found mostly in what sources of water - correct answer. Groundwater
Also called the rule of reasonable sharing - correct answer. Riparian Doctrine
Water high in salinity and warm is - correct answer. Low in dissolved oxygen
Reservoir turnover - correct answer. Denser water at surface sinking toward the
bottom
Water that flows into rivers after rainfall - correct answer. Surface runoff
Recreation can ....... of land adjacent to a reservoir - correct answer. increase the
threat of erosion
Water bearing geological zone composed of material deposited by flowing rivers -
correct answer. Alluvial aquifer
What effect will algae have on dissolved oxygen - correct answer. Increase DO during
the day and lower DO during the night
How does alkalinity effect the use of copper sulfate - correct answer. Copper sulfate is
more effective as alkalinity decreases
, The amount of water in a formation depends on..... - correct answer. The porosity of
the water-bearing formation
What enables blue green algae to grow - correct answer. Nutrients
Recommended loading rate of copper sulfate for algae control - correct answer. 5.4
lbs per acre of surface area
Primary origin of coliform bacteria - correct answer. Animal or human feces
Amount of water a well produces for each foot of drawdown - correct answer. Specific
capacity
Most common well used in public water supply - correct answer. Drilled well
What is disinfection - correct answer. inactivation or killing of pathogenic organisms
free chlorine residual valus are based on a contact time of.... - correct answer. 10
minutes
Strength of Calcium Hypochlorite - correct answer. 65-70%
What chemicals raise PH in water - correct answer. Soda Ash, Caustic Soda,
As water temp increases, disinfection action....... - correct answer. Increases
Maximum chlorine usage per day from a 150lb cylinder - correct answer. 42 lbs
What chemical is used to soften water through chemical precipitation - correct answer.
Calcium hydroxide (lime)
Mudballs are clumps of........ - correct answer. Filter media and other material
Coagulation occurs during the first ..... - correct answer. 1 to 5 seconds
When should a filter be backwashed - correct answer. High head, turbidity
breakthrough, or designated hours
What does CaCO3 (Calcium Carbonate) do? - correct answer. Decreases corrosion
Most important test to indicate proper sedimentation - correct answer. turbidity
What is considered and excellent zeta potential - correct answer. -1 to -4
What is used to test for residual chlorine - correct answer. DPD
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