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The range of diameter of cast iron sewer is __________

(a) 20-100mm

(b) 150-750mm

(c) 40-250mm

(d) 100-250mm

This question was addressed to me in a national level competition.

The above asked question is from Material for Sewers in portion Construction of Sewers, Sewer Appurtenances and Sewage Pumping of Environmental Engineering

1 Answer

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Best answer
The correct answer is (b) 150-750mm

To explain I would say: The diameter of cast iron sewer lies between 150mm and 750mm and its length lies between 3 m to 3.5m.

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