Soil Mechanics and Foundation
The shear strength of a soil

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

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Soil Mechanics and Foundation
In hydrometer analysis for a soil mass

both meniscus correction and dispersing agent correction are subtractive
meniscus correction is additive and dispersing agent correction is subtractive
meniscus correction is subtractive and dispersing agent correction is additive
both meniscus correction and dispersing agent correction are additive

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