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A soil is to be compacted on a site and it is expected that the soil contains a high percentage of montmorillonite.
1) Briefly explain the working principles of two tests that can be carried out to ascertain the presence of montmorillonite in the soil.
2) Should the soil be compacted at the dry of optimum or at the wet of optimum condition in order to minimize the swelling potential?
estimate the mass and volume of sludge produced from unreated wastewater without and with the use of ferric chloride for the enhanced removal of TSS. Also, estimate the amount of lime required for the specified ferric schloride dose.
The cross sectional dimensions of a 4-ft-long wood member at 30% moisture content is 1.5 in. x 7.5 in., and its weight is 11 lb. At oven-dry condition, its dimensions and weight are 1.35 in x 6.8 in., and 10.2, respectively. What is its specific g..
At equilibrium, the air space has a volume of 1 L, a total pressure of 1 atm, and a temperature of 298 K. The i mg of formaldehyde (HCHO, MW = 30 g/mol) is injected through the septum into the water.
While the swing bridge is closing with a constant rotation of 0.5 rad/s, a man runs along the roadway such that when d = 10 ft he is running outward from the center at 5ft/s with an acceleration of 2 ft/s^2, both measured relative to the roadway.
What is the definition of a customer? What are some examples of internal and external customers? Is the measurement of customer satisfaction different for internal customers than for external customers?
Use modern software tools to analyze a structural system of a building.
What is the length of the partial wavelength for electromagnetic energy with a frequency of 15 MHz and a phase shift of 263 degrees (in meters)?
What must be the radius of the steel wire if it is to stretch the same distance as the aluminium wire, so that the two wires maintain equal lengths after the masses are attached?
The Fluoride feeder runs out of feed solution. The rapid mix tank is connected to a 5 km long distribution pipe. The flow rate into the tank mix tank is 0.44 m/s and the volume of the tank is 2.50 m.
Calculate the precentage of carbon hydrogen and oxygen in ethanoic acid.
A compressible 12-ft clay layer beneath a building is overlain by a stratum of sand and gravel and underlain by impermeable bedrock. The total expected primary consolidation settlement of the compressible clay layer due to the building load is 4.6..
Runoff from a storm flows into a reservoir with a surface area of 20.0 ha at a constant rate. The reservoir level is observed to rise at 1 mm per minute when water is being released through the dam at a rate of 10 m3 per second.
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