GATE CE 2020 Set 1 — Question 60
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Water Resources Engineering → Hydrographs & Groundwater → Confined & Unconfined Aquifers
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Question
In a homogeneous unconfined aquifer of area , the water table was at an elevation of . After a natural recharge of volume , the water table rose to . After this recharge, ground water pumping took place and the water table dropped down to . The volume of ground water pumped after the natural recharge, expressed (in and round off to two decimal places), is ___________.
Correct answer
1.4 to 1.6
Solution
1.Area of aquifer .
2.Natural recharge volume .
3.Rise in water table due to recharge .
4.Specific yield .
5.Drop in water table after pumping .
6.Volume of ground water pumped .
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