GATE CE 2025 Set 2 — Question 58
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Water Resources Engineering → Hydrographs & Groundwater → Confined & Unconfined Aquifers
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Question
A 60 cm diameter well completely penetrates a confined aquifer of permeability m/s. The length of the strainer (spanning the entire thickness of the aquifer) is 10 m. The drawdown at the well under steady state pumping is 1.0 m. Assume that the radius of influence for this pumping is 300 m. The discharge from the well (in litres per minute) is ______ (round off to the nearest integer).
Correct answer
271 to 273
Solution
Given data:
- Diameter of the well, cm Radius, cm m
- Permeability of the aquifer, m/s
- Thickness of the confined aquifer (length of strainer), m
- Drawdown at the well, m
- Radius of influence, m
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