Soil Mechanics

391) Toughness index is defined as the ratio of

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plasticity index to flow index

392) The uniformity coefficient of soil is

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equal to or greater than 1

393) Relative density of a compacted dense sand is approximately equal to

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0.95

394) Greater skin friction

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retards the sinking of well

395) Negative skin friction on a pile

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acts downward and reduces the load carrying capacity of the pile

396) Contact pressure beneath a rigid footing resting on cohesive soil is

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more at edges compared to middle

397) The rise of the water table below the foundation influences the bearing capacity of soil mainly by reducing

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cohesion and effective unit weight of soil

398) Total later earth pressure is proportional

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square of depth of soil

399) The coefficient of active earth pressure for loose sand having an angle of internal friction of 30° is

400) The ratio of the undisturbed shear strength to the remolded shear strength in cohesive soils under undrained conditions

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greater than 1

Subject Notes

Objective Box

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