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CSS Solved Papers
Physics Chemistry

Engineering :: Public Health Engineering

  Rate of filteration of a slow sand filter ranges from
[A]. 10 to 100 litres / h / m2[B]. 100 to 200 litres / h / m2
[C]. 200 to 400 litres / h / m2[D]. 400 to 1000 litres / h / m2

Answer: Option B
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