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Water Treatment Operator
Certification Study Guide (AWWA)
Questions with 100% Correct Answers
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
:
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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,
:
vPretest - Stuvia US
Water Treatment Operator
Certification Study Guide (AWWA)
Questions with 100% Correct Answers
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
:
vPretest - Stuvia US
, 2
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,
:
vPretest - Stuvia US
