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What is the diameter of a domestic sewer pipe laid at gradient 1 in 100?(a) 150 mm(b) 250 mm(c) 120 mm(d) 80 mmI got this question in an internship interview.This question is from Schedule of Rates for Water Supply works in portion Schedule of Rates Metric and F.B of Civil Engineering Drawing

Answer»

The correct OPTION is (a) 150 MM

For explanation I WOULD say: Following are some recommendations for domestic sewer pipe.

100 mm – 1 in 60.

150 mm – 1 in 100.

200 mm – 1 in 120.



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