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The size of the vent pipe commonly used in house drainage is ________(a) 30 mm(b) 100 mm(c) 50 mm(d) 75 mmI had been asked this question in an interview for job.I need to ask this question from Plumbing for Buildings topic in division Plumbing for Buildings of Construction & Building Materials |
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Answer» Correct option is (c) 50 mm |
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