Which type of open well is suitable when the sub-soil is formed of gra – McqOptions

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1.	Which type of open well is suitable when the sub-soil is formed of gravel or coarse sand deposits?
A.	Unlined wells
B.	Wells with pervious lining
C.	Wells with impervious lining
D.	Temporary wells
Answer» C. Wells with impervious lining

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