Consider the following statement1. Slow sand filter is not flexible in – McqOptions

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1.	Consider the following statement1. Slow sand filter is not flexible in variation in demand2. The rapid sand filter is flexible in fluctuations in demand3. The method of cleaning of a slow sand filter involves agitation and back-washingWhich of the above statement is/are correct?
A.	1, 2
B.	1, 2, 3
C.	2, 3
D.	Only 3
Answer» B. 1, 2, 3

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