Gate CE 2022: Civil Champion Quiz- Soil Mechanics and Environmental Engineering
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10 m below sea water is the bed of the sea. Take the unit weight of water = 9.81 kN/m2. Take the specific gravity of soil solids and that of sea water as 2.67 and 1.03 respectively. Relative density of soil is 20%. The maximum void ratio is 1 and minimum void void ratio is 0.5. Effective stress (in kN/m2) at 30m depth below sand layer is
1- Soil having uniformity coefficient > 6
2- Soil having uniformity coefficient > 4
3- Clay having low compressibility
4- Silt having low compressibility
Catchment area = 200 hectare; population = 70,000; maximum permissible velocity = 3.5 m/s. Duration of time of concentration = 35 min; Rate of supply of water 180 l/capita/day. Take k = 0.5.
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