Grain size distribution Homework: Following are the results of a sieve analysis: Sieve No. 4 10 20 40 60 100 200 pan Mass of soil retained on each sieve (g) 18.5 53.2 90.5 81.8 92.2 58.5 26.5 а) Determine the percent finer than each sieve size and plot grain size distribution curve. b) Determine D10 , D30 and D60 from the grain size distribution . c) Calculate the uniformity coefficient c. d) Calculate coefficient of gradation c-

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British Gravitational Bg System Of Units

Measuring is the comparison of a particular physical quantity with its reference value. A unit is a fixed physical quantity. The length is a physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.