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Q: The uniformity coefficient (U.C) D60/D10 for the best filter media sand is/उत्तम छनन माध्यम बालू के लिए एकरूपता गुणांक (U.C) D60/D10 है
  • A. 2
  • B. 3
  • C. 4
  • D. 5
Correct Answer: Option A -
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Explanations:

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