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Civil Engineering MCQs
Q
Cleaning is done by________________?
AA. 1) scraping and removal in filters slow sand
BB. 2) back washing in slow sand filters
CC. 3) scraping and removal in filters rapid sand
DD. 4) back washing in rapid sand filters
Correct Answer:
1) Scraping and removal in filters slow sand
2) back washing in slow sand filters
3) scraping and removal in filters rapid sand
4) back washing in rapid sand filters