Soil Mechanics and Foundation
In hydrometer analysis for a soil mass

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

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

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

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