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A cylindrical soil sample fails under an axial vertical stress of 160 kN/m^2, when it is laterally unconfined. The failure plane makes an angle of 50 degrees with the horizontal. Calculate the value of cohesion and the angle of internal friction of the soil.
Using the method of Lee et al., predict the temperature required in an isothermal plug flow incinerator to reduce the xylene level in a waste gas from 100 ppm to 10 ppm. Assume a residence time of 0.7 sec.
A 12.0 m rectangular channel, having a bed slope of 50 cm/km and a Manning roughness coefficient of 0.015, conveys water at a normal depth of 1.0 m. A dam is built across the channel at which the water depth is 2.0 m.
What is the velocity head expressed in atmospheres for a rapid filter operated at a surface loading rate of 475 m/d when the local porosity is 0.40?
Given a water that contains 80 mg/L of glucose (C6H12O6) and 18 mg/L of ammonia (NH3): a. What is the carbonaceous oxygen demand (in mg 02/L) b. What is the nitrogenous oxygen demand (in mg 02/L)
explain the necessity of super elevation in the design of horizontal curve also prove that rv=v2/{g(fs+e)}
Calculate deformation of the truncated equilateral triangular steel pyramid. The pyramid has the height h of 156mm truncated at the top by 2mm and the base side s of 127mm.
Part of the roof of a sports stadium is to be supported by the cables AB and AC. The forces the cables exert on the pylon A to which they are attached are represented by the vectors FAB and FAC.
Design a horizontal curve with a 40-degree central angle (delta=40) for a two-lane road with 11-ft lanes. The design speed is 70 mi/h and superelevation is limited to 0.06ft/ft. Give radius, degree of curvature, and length of curve.
What are the proceeds of this sale and if the note was sold at simple discounting conditions instead, at a simple discount rate of 17%, how much would the sellerleceive for the note?
Determine the magnitude of which will cause the reaction at the bearing to be equal to zero. The bearings are in proper alignment and exert only force reactions on the rod. Set = 600 .
Determine the percent elongation and percent reduction in area of each specimen.
A stream is in equilibrium with atmospheric oxygen upstream of a waste outfall. The waste outfall creates a BODo of 20 mg/L in the stream. The k(BOD) is 0.4 /day and the k(o2) is 1.4 / day. The stream temperature is 15 degrees Celsius.
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