Soil Mechanics and Foundation
In hydrometer analysis for a soil mass

both meniscus correction and dispersing agent correction are subtractive
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 additive

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Soil Mechanics and Foundation
A cylindrical specimen of saturated soil failed under an axial vertical stress of 100kN/m2 when it was laterally unconfmed. The failure plane was inclined to the horizontal plane at an angle of 45°. The values of cohesion and angle of internal friction for the soil are respectively

0.05 N/mm² and 45°
0.05 N/mm² and 0°
0.5 N/mm² and 30°
0.2 N/mm² and 0°

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