Soil layers are shown as the right figure. Given: H₁ = 2 m, k₁ = 10-4 cm/sec H₂ = 3 m, k₂= 3.2 x 10-² cm/sec H₂ = 4 m, K₂ = 4.1 x 10-5 cm/sec Estimate the ratio of horizontal equivalent hydraulic conductivity and vertical equivalent hydraulic conductivity, i.e.. k/K₂ H₂ H₂ O a. 152 Ob. 270 Oc. 140 C. O d. 225 k₁ k₂ k3

A constant head test is performed using a permeameter in the laboratory. The graduated cylinder collects 892 cm3 of water in 112 seconds. The soil specimen diameter = 18 cm , th elevation of water in upper-most piezometer is 181 com , the elevation of water in lowest piezometer is 116.6 cm and the piezometer inlets are evenly spaced at 16.7 cm on center. Compute the hydraulic conductivity, k and choose the correct answer below based on that. O A. 2.1 x 10^-3 cm/second O B. 1.5 x 10^-2 cm/second O C. 2.91 x 10^-2 cm/second O D. 2 x 10^-2 cm/second QUESTION 10 Given: -Applied stress on a soil = 122 kPa %3D -Influence Factor = 0.4 Compute the change in stress at 10 m below the edge of 25 m dimeter oil tank and select the correct answer from below: O A. Change in stress = 44 kPa O B. Change in stress = 49 kPa O C. Change in stress = 40 kPa O D. Change in stress = 42 kPa %3D

Problem (5) A layered soil is shown in following figure. a) Estimate the hydraulic conductivity for flow in the vertical direction. b) Estimate the equivalent hydraulic conductivity for flow in horizontal direction. c) calculate the ratio of ky(eg) /kh(eq) 1 m k = 10-3 cm/sec 1 m k = 2 × 10-4 cm/sec 1 m k = 10 cm/sec 1 m k = 2 × 10¬³ cm/sec

Answer in three decimal places please