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Reported Question / Answer
Q.) In a slow sand filter, the element responsible for yielding bacteria-free water is the -
1)
Valve
2)
Vital layer
3)
Supenatant water
4)
Under-drainage system
5)
NULL
Answer :
2
Thank you for reporting wrong Question / Answer / Options
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Message / Correct Answer / Suggestion
Human Verification : Answer 2 + 3 = ?
Reading Corner ( Ctrl + Mouse Click)
20) Which President had the surname Blythe at the time of his birth?
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When was the main structure of Grand Coulee Dam completed?
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