+1 vote
in Environmental Engineering by (81.4k points)
The maximum size of filter media of a percolating filter is ___________

(a) 10mm

(b) 25mm

(c) 60mm

(d) 75mm

I had been asked this question in a national level competition.

My question is based upon Types of Sewage Filter topic in division Sewage Filtration and Activated Sludge Process of Environmental Engineering

1 Answer

+2 votes
by (693k points)
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Best answer
Right choice is (d) 75mm

For explanation: The minimum and maximum size of filter media of a percolating filter is 25mm and 75mm respectively.

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