3) Which of the following soil is a fine-grained soil? (a) A soil containing 67%

Question

3) Which of the following soil is a fine-grained soil? (a) A soil containing 67% (by weight) gravel fraction (b) A soil containing 32% (by weight) sand fraction and 30% (by weight) silt fraction (c) A soil containing 52% (by weight) of sand fraction (d) A soil containing 10% (by weight) gravel fraction and 28% (by weight) sand fraction, and the rest is clay and silt 4) Which of the following mineral swells when a dry particle of that mineral meets with water? (a) Kaolinite (b) Illite (c) Smectite (d) Chlorite 5) The consistency of a fine-grained soil can be described by shrinkage limit (w,), liquid limit (w), plastic limit (wp), and plasticity index (Ip). Which of the following relationship holds true? (a) wL> WpWs

Explanation / Answer

Answer 3) Correct Answer is option (d)

Explanation: Fine grained soil is not classified on the basis of grain size distribution but it is defined on basis of plasticity and compressiblility high compressibility & high plasticity means more Fine grained soil & in option (d) we will get the highest compressibility as well as plasticity. hence option (d) is the correct answer.

Answer4) Correct answer is option (c)

Explanation:Semicitite has high swelling potential amongst all because they are made up of weathering of volcanic ash and it has high property of swelling it swells and expands several times of its original volume.

Answer5) Correct answer is Option (c)

Explanation: Because this is the range where the the water content make plastic consistency of soil.

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