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INDIANA WATER OPERATOR CERTIFICATION QUESTIONS WITH COMPLETE ANSWERS

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INDIANA WATER OPERATOR CERTIFICATION QUESTIONS WITH COMPLETE ANSWERS

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What is coagulation?


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Coagulation is the rapid mixing of coagulants with water in a tank or other
structure to cause very small particles to form together called Floc.
Coagulants may include aluminum sulfate (alum), ferric chloride, and
synthetic polymers.




What disease is capable of being transmitted by water?


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Typhoid

,Who Needs to Provide Public Notification?


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All public water systems (community, nontransient noncommunity, and
transient noncommunity) must provide public notification when violations
of drinking water regulations occur.




What does a hypochlorinator do?


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Feed a liquid chlorine solution into a water supply.




What are the 2 parts of a solution?


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solvent and solute




What is the most practical method for disinfection?


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Chlorine

,The amount of oxygen that can remain dissolved in water is related to?


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Temperature




How often should a ladder be placed in a trench?


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Every 25 feet




What are Aesthetic Qualities of water?


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The taste, odor and appearance of drinking water.




If you have a 100 ft. high elevated water tank, how many PSI will be coming out of the
tank?


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1 foot of head = .433 PSI
100 ft x .433 PSI = 43.33 PSI coming out of the tank.

, What is a Customer Service Line?


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The pipeline from the public water supply to the: (1) First tap, fixture,
receptacle, or other point of customer water use; or (2) Secondary source
of supply or pipeline branch in a building.




When does Coagulation occur?


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Within the first 1 to 5 Seconds




What is a Tier 3 notification?


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This is your Annual water quality report / Consumer Confidence Report
(CCR)




What is lake turnover?


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During the Spring and Fall, water cools becoming denser causing it to sink.
This forces the water of the bottom to rise, "turning over" the layers

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