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5. the piezometric heads in a confined 1 point aquifer separated by 121m are 48.6m and 47.5m respectively. calculate its hydraulic gradient. (correct up to thre
5. The piezometric heads in a confined 1 point aquifer separated by 121m are 48.6m and 47.5m respectively. Calculate its hydraulic gradient. (Correct up to three decimal places)
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Saurabh 1![best-answer]()
Let piezometric heads be H1 and H2 and separation between them be L then hydraulic gradient(∆H/L) = (H1-H2) /L So putting values, H1= 48.6m, H2= 47.5m, L=121m So hydraulic gradient= (48.6–47.5)/121= 0.009 Answer is = 0.009(upto three decimal place).