+1 vote
in Environmental Engineering by (81.4k points)
The thickness of sand bed of a pressure filter is _____ cm.

(a) 10-20

(b) 20-30

(c) 30-50

(d) 50-60

The question was posed to me by my college director while I was bunking the class.

This intriguing question comes from Pressure Filter in chapter Filtration of Environmental Engineering

1 Answer

+2 votes
by (693k points)
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Best answer
Right option is (d) 50-60

To explain I would say: The thickness of sand bed of a pressure filter is 50-60 cm, whereas the gravel layers of pressure filter are same as a rapid sand filter.

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