What is the correct order of the below mentioned units in water purification system? 1) Chlorination tank 2) Loading tank 3) Sedimentation tank 4) Filtration tank

1, 2, 3, 4

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1, 3, 4, 2

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3, 2, 4, 1

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4, 3, 2, 1

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Solution

The correct option is C
3, 2, 4, 1

Water from the reservoir is directed to sedimentation tank where insoluble solids settle. Then, water enters loading tank where suspended impurities are sedimented. Next, water is directed to filtration tank where all the suspended impurities are removed. Finally, water enters chlorination tank where water is treated with chlorine to kill any bacteria present in drinking water.

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