Soil Mechanics and Foundation
Highway Research Board (HRB) classification of soils is based on

None of these
both particle size composition and plasticity characteristics
plasticity characteristics
particle size composition

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Soil Mechanics and Foundation
In hydrometer analysis for a soil mass

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

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Soil Mechanics and Foundation
Sensitivity of a soil can be defined as

percentage of volume change of soil under saturated condition
ratio of compressive strength of unconfined undisturbed soil to that of soil in a remoulded state
None of these
ratio of volume of voids to volume of solids

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