Samples of soil A, soil B and soil C are collected at the College of Engineering, INTI-IU. These samples have the followings properties as shown in Table 1. Determine the followings parameters for Soil A, soil B and soil C:- (CO1) Table 1: Soil Parameters Parameters Soil A Soil B Soil C Dry soil (kg) 12.87 13.55 14.00 Wet soil (kg) 15.21 14.11 14.52 Volume (m³) 7.08 x 103 7.08 x 103 7.08 x 103 Specific gravity 2.66 2.70 2.71

During test for water content determination on a soil sample by pycnometer. The following observations were recorded. Mass of wet soil sample = 1000 gm Mass of pycnometer with soil & filled with water 2000 gm Mass of pycnometer filed with water only 1480 gm Specific gravity of solids 2.67 If bulk density of soil is 2.05 gm/ml, The degree of saturation is

The results of Liquid Limit and Plastic Limit tests are shown in the following figure. Which of the following most nearly gives the Plasticity Index (PI) of the soil? PLASTIC LIMIT TEST LIQUID LIMIT TEST WEIGHT OF WEIGHT OF MOIST SOIL OVEN DRIED (G) 26 SOIL (G) 24 128.6 105.4 22 141.4 116.8 132.6 109.6 18 134.6 111.2 16 136.0 113.4 14 40 45 50 55 60 65 Note: The x-axis of the graph on the left corresponds to the moisture content (in %). 42% 26% 36% 31% CONE PENETRATION (MM) 20

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A standard Proctor test was performed on a soil which has a Gg = 2.75. The moisture content and total density results are shown in the table below. Moisture Wet unit weight| Content (KN/m³) 12% 18.1 14% 19.3 16% 20.7 18% 21.0 20% 18.2 a. Calculate the dry unit weight for each sample and type your answers in the first 5 answer boxes below (3 sigs, in KN/m3). b. Calculate the dry unit weight at zero air void for the 12% and 14% moisture content samples and type those answers in boxes 6 and 7 below(3 sigs, in KN/m3). . c. Plot the moisture content-dry unit weight curve and zero air void line on graph paper. d. From the moisture content-dry density curve, determine the maximum dry unit weight(3 sigs, in KN/m3). and optimum moisture content (3 sigs, in %). for this soil and type those answers in boxes 8 and 9 below.

Initial data for determining the specific gravity of a soil sample is given below: Calibration of Pycnometer (1) Mass of dry clean pycnometer, Mp= 317.11 g (2) Mass of pycnometer + water at calibration temperature, Mpw,c = 903.03 g (3) Observed temperature of water at calibration, T = 26.4°C Secondary data for the determination of Specific Gravity is as follows: Determination No: Mass of pycnometer + soil + water at test temperature, Mpws,t (9) Test Temperature, T₁ (°C) Mass of pycnometer + water at T₁, Mpw,t (g) Evaporating dish no. Mass of evaporating dish, Md (g) Mass of evaporating dish + oven-dried soil, Mds (9) Mass of solids, Mş (9) Conversion factor, K Specific gravity of soil, Gs@20°C 1 966.17 22.3 1 15.52 115.51 Determine the Mass of pycnometer + water at T₁, Mpw,t. (Units of g, 2 decimal places) Note: Find Pw,t using table 6-1.

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Field and oven-dry weights of a soil sample taken with a 12 cm long by 6 cm diameter cylindrical tube are Field mass 440 g, and Oven dry mass 420 g, and density, pm of soil solids is 2.75 g/cm3, and density, pw of water is 1 g/cm3. Calculate Degree of Saturation (S). Select one: a. 45.04% O b. 12.67% O c. 22.82% O d. 76.91% O e. 31.58% O f. 13.09%

5. Diameter Pipa: Soil Sample Diameter: Soil Sample Length: Initial Elevation: Height at the end of the test: Test Duration: Table 3. Permeability Test Data TES 1 5 CM 15 CM 30 CM 60 CM 37CM 10 MINUTES TES 2 5 CM 15 CM 30 CM 60 CM 45CM ?? MINUTE B. The permeability test as mentioned in the question above (a) is carried out twice on the same soil sample. The results of tests 1 and 2 are in Table 3. How long is the duration of test 2?