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What is the detention period in a septic tank?(a) 24 hours(b) 12 hours(c) 06 hours(d) 36 hoursI got this question by my college director while I was bunking the class.Question is taken from Schedule of Rates for Water Supply works topic in section Schedule of Rates Metric and F.B of Civil Engineering Drawing |
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Answer» The correct choice is (a) 24 hours |
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