Soil Mechanics

371) The shear strength of soil is a unique function of

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effective stress only

372) Coefficient of consolidation for clays normally

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decreases with increase in liquid limit

373) The coefficient of consolidation of soil is affected by

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both compressibility and permeability

374) The hydrostatic pressure on the phreatic line within a dam section is

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equal to atmospheric pressure

375) The phreatic line in an earthen dam is

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parabolic

376) Which of the following methods is more suitable for the determination of permeability of clayey soil?

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falling head method

377) Rise of the water table above the ground surface causes

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equal increase in pore water pressure and total stress

378) Which of the following soils has a more plasticity index?

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clay

379) If the plasticity index of a soil mass is zero, the soil is

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sand

380) A pycnometer is used to determine

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water content and specific gravity

Subject Notes

Objective Box

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