Soil Mechanics & Foundation

101) Soils with a value for coefficient of permeability ranging between IF to 10-6 are classified as

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semi-pervious soils

102) The presence of organic matter in a soil will

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decrease the permeability

103) Quick sand is

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a condition in which cohesionless soil loses its shear strength due to the upward flow of water

104) A critical hydraulic gradient occurs when

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all the above

105) In a flownet, which of the following statement is true?

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Flow lines and equipotential lines intersect orthogonally

106) The permeability of a soil deposit-in-situ can be best obtained by

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pumping test

107) The minimum number of observation wells required to determine the permeability of a stratum in the field by pumping test is

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two

108) Find out the correct statement about shape factor

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independent of permeability

109) The flow net can be obtained by

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all the above

110) The shape factor of a flownet is defined as

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Nf/Nd

Subject Notes

Objective Box

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