Soil Mechanics and Foundation
Which of the following statements is correct?

A soil is said to be well graded if it has most of the particles of about the same size
Uniformity coefficient represents the shape of the particle size distribution curve.
None of these
For a well graded soil, both uniformity coefficient and coefficient of curvature are nearly unity.

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Soil Mechanics and Foundation
Coefficient of earth pressure at rest is

less than both the active and passive earth pressures
less than active earth pressure but greater than passive earth pressure
greater than active earth pressure but less than passive earth pressure
greater than both the active earth pressure and passive earth pressure

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Soil Mechanics and Foundation
Quick sand is a

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

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