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Steady-state creep data taken for an Fe at a stress level of 150 MPa are given here: E's h^-1 E's h^-1 T (K)7x10-4 11009x10-2 1220If it is known that the value of the stress exponent, n, for this alloy is 8, compute the steady-stare creep rate at 1300 K and a stress level of 90 MPa.
How many short tons of coal are required by this plant per year, assuming it operates continuously? If 10% of the coal mass remains as residual ash, how many tons will develop in the ash pile over 25 years?
manufacturing process that unintentionally introduces cracks to the surface of a part was used to produce load-bearing components. The design requires that the component be able to withstand a stress of 450 MPa.
An object is held in the air 30m above ground and released. Assume the drag force due to air resistance is given by Fd = 1.0Vy. What is the mass of the object necessary so that it reaches ground in 3s
Head loss and sunshine striking a pipeline cause the temperature of the water flowing inside to rise by 2 degrees Celsius between two measuring points. Find the heat gain in J/N and cal/N.
A water pipeline system is made up of three links in parallel. In any given year, on average, 99 in 100 pumps do not fail. The conditions in the links are statistically independent of each other.
The pressure gage on an airplane flying overhead indicates that the atmospheric pressure at that point is 9.7 psia and that the air temperature is 42 deg. Fahrenheit. Assume a linear decrease of temperature with elevation
Determine the arrival rate assuming that it is unchanged over the duration of the observation period. An approach to a pretimed signal with a 60second cycle has nine vehicles in the queue at the beginning of the effective green.
A copper wire breaks under an engineering stress of 43x10^3 psi. Its ductility is 77%it reduction area. Calculate the true stress (in psi) for fracture in the neck region.
The slope distance between two points is 72.665 m, and the difference in elevation between the points is 1.120 m. Compute the horizontal distance.
Water flows through a horizotal 45 deg reducing bend with a 36 inch. diameter upstream and a 24 inch diameter downstream, at the rate of 20 cfs under a pressure of 15 psi at the upstream end of the bend. Neglecting head loss in the bend, calculate..
Route a trianglular hydrograph through a 100 foot wide rectangular channel with a bed slope of 0.015 and a Mannings n of 0.035. Tak a distance between cross-sections of 3000 ft.
The plant will be designed with a rapid mix unit followed by flocculation and sedimentation basin. The water source has an average winter water temperature of 40 and an average summer water temperature of 70oF.
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