Soil Mechanics and Foundation
Quick sand is a

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

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Soil Mechanics and Foundation
Rise of water table above the ground surface causes

Equal decrease in pore water pressure and total stress
Increase in pore water pressure but decrease in total stress
Equal increase in pore water pressure and total stress
Decrease in pore water pressure but increase in total stress

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Soil Mechanics and Foundation
The shear strength of a soil

Is directly proportional to the angle of internal friction of the soil
Decreases with decrease in normal stress
Decreases with increase in normal stress
Is inversely proportional to the angle of internal friction of the soil

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