Soil Mechanics and Foundation
Select the incorrect statement. Effective angle of shearing resistance

is rarely more than 30° for fine grained soil
increases as the size of particles increases
is limited to a maximum value of 45°
increases as the soil gradation im-proves

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Soil Mechanics and Foundation
Quick sand is a

flow condition occurring in both cohesive and cohesionless soils
type of sand
flow condition occurring in cohesive soils
flow condition occurring in cohesionless soils

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Soil Mechanics and Foundation
If the water table rises upto ground surface, then the

total stress is reduced due to increase in pore water pressure only but effective stress does not change
total stress is increased due to decrease in pore water pressure but effective stress does not change
effective stress is reduced due to decrease in total stress only but pore water pressure does not change
effective stress is reduced due to increase in pore water pressure only but total stress does not change

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