Please solve question 4.29 and explain the steps please. Thank you marks WindowFEB18HelpComprehensive4.28 A sand with G, = 2.66 and e=0.60 is completely dry. It then becomes wetted by a ris-ing groundwater table. Compute the unit weight (lb/ft or kN/m') under the followingconditions:gmuedu-my.sharepoint.com(a) When the sand is completely dry.(b) When the sand is 40% saturated (S = 40%).(c) When the sand is completely saturated.CEIE331 (1).pdf4.29 A soil initially has a degree of saturation of 95% and a unit weight of 129 lb/ft³. It is thenplaced in an oven and dried. After removal from the oven, its unit weight is 109 lb/ft³.Compute the void ratio, porosity, initial moisture content, and specific gravity of the soil,assuming its volume did not change during the drying process.4.30 A 1.20-m thick strata of sand has a void ratio of 1.81. A contractor passes a vibratoryroller over this strata, which densifies it and reduces its void ratio to 1.23. Compute its newthickness.4.31 A 412-g sample of silty sand with a moisture content of 11.2% has been placed on a # 200sieve. The sample was then "washed" on the sieve, forcing the minus # 200 particles to passthrough. The soil that remained on the sieve was then oven dried and found to have amass of 195 g. By visual inspection, it is obvious that all of this soil is smaller than the #4sieve. Compute the percent sand in the original sample.Questions and Practice Problems 1634.32 A standard penetration test has been performed on a soil, producing N160 19. A sieveanalysis was then performed on the sample obtained from the SPT sampler, producingcurve C in Figure 4.13. Assuming this soil is about 150 years old and has OCR 1.8,compute its relative density and determine its consistency.4.33 Develop a formula for relative density as a function of Ya, Ya-hi. and Ya-lo, where ya is thedry unit weight in the field. Yd-hi is the dry unit weight that corresponds to emin and Yo-lo isthe dry unit weight that corresponds to emax.(a) ((b) ((c) Compile4.34 All masses for the specific gravity test described in Example 4.5 were determined using abalance with a precision of ±0.01 g. The volume of the pycnometer is accurate to within+0.5%, and the moisture content measurement is accurate to within ±2.0% (i.e., the realw could be as low as 11.0% or as high as 11.4%) . Assuming all measurement errors arerandom, determine the precision of the computed G, value.Hint: All errors are random, so the worst case would be if none of the errors werecompensating (i.e., each measurement had the maximum possible error, and each con-tributed to making the computed G, farther from its true value). Therefore, compute thehighest possible value of G, that is consistent with the stated uncertainties, then compareit with the G, obtained in Example 4.5.Search for4.35 A 10,000 ft mass of saturated clay had a void ratio of 0.962 and a specific gravity ofsolids of 2.71. A fill was then placed over this clay, causing it to compress. This compres-sion is called consolidation, a topic we will discuss in Chapters 10 and 11. During thisprocess, some of the water was squeezed out of the voids. However, the volume of thesolids remained unchanged. After the consolidation was complete, the void ratio hadbecome n7584.36 What Aprobtv N183 of 8130 of 0 Quses the mostMC») $ 32 ☎ED Info2

Question

Please solve question 4.29 and explain the steps please. Thank you marks WindowFEB18HelpComprehensive4.28 A sand with G, = 2.66 and e=0.60 is completely dry. It then becomes wetted by a ris-ing groundwater table. Compute the unit weight (lb/ft or kN/m') under the followingconditions:gmuedu-my.sharepoint.com(a) When the sand is completely dry.(b) When the sand is 40% saturated (S = 40%).(c) When the sand is completely saturated.CEIE331 (1).pdf4.29 A soil initially has a degree of saturation of 95% and a unit weight of 129 lb/ft³. It is thenplaced in an oven and dried. After removal from the oven, its unit weight is 109 lb/ft³.Compute the void ratio, porosity, initial moisture content, and specific gravity of the soil,assuming its volume did not change during the drying process.4.30 A 1.20-m thick strata of sand has a void ratio of 1.81. A contractor passes a vibratoryroller over this strata, which densifies it and reduces its void ratio to 1.23. Compute its newthickness.4.31 A 412-g sample of silty sand with a moisture content of 11.2% has been placed on a # 200sieve. The sample was then &#34;washed&#34; on the sieve, forcing the minus # 200 particles to passthrough. The soil that remained on the sieve was then oven dried and found to have amass of 195 g. By visual inspection, it is obvious that all of this soil is smaller than the #4sieve. Compute the percent sand in the original sample.Questions and Practice Problems 1634.32 A standard penetration test has been performed on a soil, producing N160 19. A sieveanalysis was then performed on the sample obtained from the SPT sampler, producingcurve C in Figure 4.13. Assuming this soil is about 150 years old and has OCR 1.8,compute its relative density and determine its consistency.4.33 Develop a formula for relative density as a function of Ya, Ya-hi. and Ya-lo, where ya is thedry unit weight in the field. Yd-hi is the dry unit weight that corresponds to emin and Yo-lo isthe dry unit weight that corresponds to emax.(a) ((b) ((c) Compile4.34 All masses for the specific gravity test described in Example 4.5 were determined using abalance with a precision of ±0.01 g. The volume of the pycnometer is accurate to within+0.5%, and the moisture content measurement is accurate to within ±2.0% (i.e., the realw could be as low as 11.0% or as high as 11.4%) . Assuming all measurement errors arerandom, determine the precision of the computed G, value.Hint: All errors are random, so the worst case would be if none of the errors werecompensating (i.e., each measurement had the maximum possible error, and each con-tributed to making the computed G, farther from its true value). Therefore, compute thehighest possible value of G, that is consistent with the stated uncertainties, then compareit with the G, obtained in Example 4.5.Search for4.35 A 10,000 ft mass of saturated clay had a void ratio of 0.962 and a specific gravity ofsolids of 2.71. A fill was then placed over this clay, causing it to compress. This compres-sion is called consolidation, a topic we will discuss in Chapters 10 and 11. During thisprocess, some of the water was squeezed out of the voids. However, the volume of thesolids remained unchanged. After the consolidation was complete, the void ratio hadbecome n7584.36 What Aprobtv N183 of 8130 of 0 <QQ>Quses the mostMC») $ 32 ☎ED Info2

Accepted Answer

When we oven dry any soil, it gets dry i.e water gets evaporated and soil becomes driedsaturation=…