Soil Mechanics and Foundation
For a loose sand sample and a dense sand sample consolidated to the same effective stress

ultimate strength is same but peak
ultimate strength is different but peak strength is same
ultimate strength is same and also peak strength is same
ultimate strength is same but peak strength of dense sand is greater than that of loose sand

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Soil Mechanics and Foundation
Coefficient of earth pressure at rest is

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

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

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