Civil Engineering > GATE 2020 SET-1 > Geotechnical Engineering
Water flows in the upward direction in a tank through a 2.5 m thick sand layer as shown in the figure. The void ratio and specific gravity of sand are 0.58 and 2.7, respectively. The sand is fully saturated. Unit weight of water is 10 kN/m3. 
The effective stress (in kPa, round off to two decimal places) at point A, located 1 m above the base of the tank is _______.
Correct : 8.70 to 9.30
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