1 (a) (b) The results shown in Table QA1 were obtained by a group of students during a laboratory experiment using a standard Proctor test on granular material. Table QA1 Bulk density Water content (Mg/m³) 1.91 2.24 2.31 1.99 1.4 (%) 256 00 8 9 Using the data in Table QA1, plot the corresponding compaction curve and determine the air content corresponding to the optimum water content and maximum dry density for this soil. Is the air content within the range normally specified when at optimum values? (Note you may Assume: G, = 2.7 and pw = 1 Mg/m³) Explain why and when it is essential to determine soil density on construction sites.

Q: Following the sieve analysis and the specific gravity of "SAND 1", a hydrometer test was performed…

A: The hydrometer test is used to determine the distribution of soil particle sizes that are smaller…

Q: Plot the Standard Proctor curve of dry unit weight versus water content (see below table) and; a)…

A: Plot the compaction curve by keeping water content along the horizontal axis and the dry unit weight…

Q: In a liquid limit test on a fine-grained soil, using the Casagrande apparatus, the following results…

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Q: 2. Interpret the results of the proctor test in table 1 and plot the images of the optimum moisture…

A: Given,Soil mass vs water content data Gs = 2.7FindRange of moisture cintent values in the field that…

Q: A laboratory test was conducted according to Method A of the ASTM D4318 to find the liquid limit of…

A: The wet mass of the soil sample with the mass of the can is measured, again the dry mass of the…

Q: 2.28. A groundwater is being considered for use as a domestic supply. The water has a temperature…

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Q: A column analysis of a flocculating suspension is shown below. The initial solids concentration is…

A: C0 = Intital solids concentration = 200 mg/L(a) Calculate the removal fraction at each depth and…

Q: (b) What is the dry unit weight of the soil in pcf? (c) What is the void ratio of the soil? (d) What…

A: Given,  Total unit weight, γt = 124 pcf  Specific gravity of solid, Gs = 2.66  Average water…

Q: A carefully-weighed 45.3 gram soil sample was dispersed for particle-size analysis using the…

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Q: A glass cylinder 5 cm internal diameter with a screen at the bottom was used as a falling head…

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Q: A Standard Proctor Test was completed according to Method A described in Chapter 12. The following…

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Q: The laboratory test data for a standard Proctor test are given below. Volume of Moisture content…

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Q: 2. Table 2 shows the results of the standard proctor test Water content (%) Weight (kg) 14 16,5 18,5…

A: Volume of mold = 943 cm3  Specific gravity of solids, Gs = 2.7

Q: A large soil sample obtained from a borrow pit has a wet mass of 26.50kg. The in-place volume…

A: Wet mass at borrow pit (WT) = 26.50 kg Volume of mass (VT) = 0.013 m3 Sample of wet soil (wT) = 135…

Hydrogen Energy

Energy is a quantity that cannot be defined, its existence can only be felt. In simple language, if a system possesses energy, it can do a specific kind of work. There are many forms of energy sources which people can use to obtain work. Solar energy, tidal energy, hydroelectric energy, geothermal energy, wind energy are some of the renewable energy sources which are primarily used for the production of electricity.