Engineering, 18.02.2021 21:30 kayla8243
EPA defines the five categories of environmental impact mitigation. For an underground gold mine in Nevada, there are two aquifers: one closer to the surface, which has good water quality (drinkable) and the other, which is saline and deeper. The conceptual mine plan involves drawing 1,200 acre-ft of water from the aquifer nearer to the surface, annually. The water use impacts are of concern in this dry environment. For the water use, list one example for each of the mitigation categories.
Answers: 3
Engineering, 04.07.2019 08:10
Which of the following is an easy way to remember the modified βxβ tire rotation? a. nondrive wheels straight, cross the drive wheels b. drive wheels straight, cross the nondrive wheels c. drive wheels crossed, nondrive wheels straight d. drive wheels crossed, nondrive wheels crossed
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Engineering, 04.07.2019 18:10
Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.
Answers: 2
Engineering, 04.07.2019 18:10
Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.
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Engineering, 04.07.2019 19:20
Air enters a horizontal, constant-diameter heating duct operating at steady state at 290 k, 1 bar, with a volumetric flow rate of 0.25 mΒ°/s, and exits at 325 k, 0.95 bar. the flow area is 0.04 m2. assuming the ideal gas model with k = 1.4 for the air, determine (a) the velocity at the inlet and exit, each in m/s, and (c) the rate of heat transfer, in kw flow rate, in kg/s, (b) the mass kg 0.3
Answers: 2
EPA defines the five categories of environmental impact mitigation. For an underground gold mine in...
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