If D is the diameter of a circular sewer and D...

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If D is the diameter of a circular sewer and D’ is the top horizontal diameter of an equivalent egg shaped section, the relationship which holds good, is

A. D’ = 0.64 D

B. D’ = 0.74 D

C. D’ = 0.84 D

D. D’ = 0.94 D

Answer: Option C

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