Water Treatment Operator
Certification Study Guide
(AWWA) questions with
complete verified solutions
(graded A+)
A continuously flowing watercourse - answer Perennial Stream
Algae causes PH to ....... at night - answer Decrease
What contributes to creation of algae blooms - answer Increased nutrients
Iron is found mostly in what sources of water - answer Groundwater
Also called the rule of reasonable sharing - answer Riparian Doctrine
Water high in salinity and warm is - answer Low in dissolved oxygen
Reservoir turnover - answer Denser water at surface sinking toward the
bottom
Water that flows into rivers after rainfall - answer Surface runoff
Recreation can ....... of land adjacent to a reservoir - answer increase the
threat of erosion
, Water bearing geological zone composed of material deposited by flowing
rivers - answer Alluvial aquifer
What effect will algae have on dissolved oxygen - answer Increase DO
during the day and lower DO during the night
How does alkalinity effect the use of copper sulfate - answer Copper
sulfate is more effective as alkalinity decreases
The amount of water in a formation depends on..... - answer The porosity
of the water-bearing formation
What enables blue green algae to grow - answer Nutrients
Recommended loading rate of copper sulfate for algae control - answer 5.4
lbs per acre of surface area
Primary origin of coliform bacteria - answer Animal or human feces
Amount of water a well produces for each foot of drawdown - answer
Specific capacity
Most common well used in public water supply - answer Drilled well
What is disinfection - answer inactivation or killing of pathogenic
organisms
free chlorine residual valus are based on a contact time of.... - answer 10
minutes
Strength of Calcium Hypochlorite - answer 65-70%
What chemicals raise PH in water - answer Soda Ash, Caustic Soda,
Certification Study Guide
(AWWA) questions with
complete verified solutions
(graded A+)
A continuously flowing watercourse - answer Perennial Stream
Algae causes PH to ....... at night - answer Decrease
What contributes to creation of algae blooms - answer Increased nutrients
Iron is found mostly in what sources of water - answer Groundwater
Also called the rule of reasonable sharing - answer Riparian Doctrine
Water high in salinity and warm is - answer Low in dissolved oxygen
Reservoir turnover - answer Denser water at surface sinking toward the
bottom
Water that flows into rivers after rainfall - answer Surface runoff
Recreation can ....... of land adjacent to a reservoir - answer increase the
threat of erosion
, Water bearing geological zone composed of material deposited by flowing
rivers - answer Alluvial aquifer
What effect will algae have on dissolved oxygen - answer Increase DO
during the day and lower DO during the night
How does alkalinity effect the use of copper sulfate - answer Copper
sulfate is more effective as alkalinity decreases
The amount of water in a formation depends on..... - answer The porosity
of the water-bearing formation
What enables blue green algae to grow - answer Nutrients
Recommended loading rate of copper sulfate for algae control - answer 5.4
lbs per acre of surface area
Primary origin of coliform bacteria - answer Animal or human feces
Amount of water a well produces for each foot of drawdown - answer
Specific capacity
Most common well used in public water supply - answer Drilled well
What is disinfection - answer inactivation or killing of pathogenic
organisms
free chlorine residual valus are based on a contact time of.... - answer 10
minutes
Strength of Calcium Hypochlorite - answer 65-70%
What chemicals raise PH in water - answer Soda Ash, Caustic Soda,
