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Questions and Answers
What is the main concern about bottled water safety?
What is the main concern about bottled water safety?
- The total dissolved solids (TDS) level (correct)
- The hardness as calcium carbonate
- The presence of dissolved gases
- The pH level
What is a characteristic of hard water?
What is a characteristic of hard water?
- Produces lather with soap
- Does not contain any dissolved substances
- Has a low total dissolved solids (TDS) level
- Contains dissolved calcium and magnesium salts (correct)
Why is rain water considered safe for drinking?
Why is rain water considered safe for drinking?
- It contains harmful dissolved gases
- It has a high total dissolved solids (TDS) level
- It is free from harmful contaminants (correct)
- It has a low pH level
What is the primary concern regarding ocean water for drinking purposes?
What is the primary concern regarding ocean water for drinking purposes?
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What is the disadvantage of sterilizing water with Bleaching powder (CaOCl2)?
What is the disadvantage of sterilizing water with Bleaching powder (CaOCl2)?
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Which method introduces calcium in water during the conditioning process?
Which method introduces calcium in water during the conditioning process?
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What does the Lime Soda Process involve in water treatment?
What does the Lime Soda Process involve in water treatment?
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What are ion exchange resins used for in the water treatment process?
What are ion exchange resins used for in the water treatment process?
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What method is used to estimate water hardness?
What method is used to estimate water hardness?
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What color does the weak complex of metal ion and EBT form?
What color does the weak complex of metal ion and EBT form?
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Which method is used to sterilize and disinfect water through oxidation?
Which method is used to sterilize and disinfect water through oxidation?
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What is the advantage of UV treatment for water sterilization?
What is the advantage of UV treatment for water sterilization?
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