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18 Cards in this Set
- Front
- Back
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If a water body has a high salinity and is warm, it will generally be |
Love and dissolved oxygen |
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Reservoir turnover is? |
Caused by denser water at the surface sinking toward the bottom |
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What does the term surface runoff refer to? |
Water that flows into the rivers after the rain fall |
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Hikers, bicyclist, all-terrain vehicles, and automobiles can all ____ of watershed land adjacent to a reservoir |
Increase the threat of erosion |
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What is the term for a water-bearing geological zone composed of material deposited by flowing rivers? |
Alluvial aquifer |
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As water temperature increases, the disinfection action of chlorine will |
Increase |
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As water temperature increases, the disinfection action of chlorine will |
Increase |
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What effect will caustic soda have on water? |
Increase the pH of the water |
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As water temperature increases, the disinfection action of chlorine will |
Increase |
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What effect will caustic soda have on water? |
Increase the pH of the water |
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In order to prevent freezing, what is the maximum chlorine usage per day from 150 pound cylinder? |
42 pounds |
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Which of the following chemicals is used to soften water through chemical precipitation? |
Calcium hypochlorite (lime). A number of chemicals can be used to soften water through chemical precipitation. These include, but are not limited to, caustic soda, sodium sulfate, and soda ash. |
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How many pounds of 61% calcium hypochlorite are required for a 50 mg/L dosage in the tank that is 110 feet in diameter and has a water level of 19 feet? |
923 pounds |
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Alkalinity consists predominately of which of the following? |
Bicarbonate, carbonate, and hydroxide |
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What is the log removal or in activation required for viruses? |
4.0 log |
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The highest concentration of hypochlorous acid occurs at what pH? |
Below seven |
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Which of the following will most accurately measure 500 mL of solution? |
500-mL volumetric flask |
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Which of the following fluorite compounds comes in solution form? |
Fluorosilicic acid |
