Engineering, 20.12.2019 19:31 parosil
Acity has a population of 50,000 people, an average household generated wastewater flow of 430 l/day-person, and the average bod5 of the untreated wastewater in population equivalents is 0.1 kg bod5/day-person. if the bod reaction rate constant for the waste stream is 0.4/day. determine the ultimate bod of the wastewater.
Answers: 1
Engineering, 03.07.2019 15:10, EmilySerna
Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.
Answers: 1
Engineering, 04.07.2019 03:10, lauriepdx17
What precautions should you take to prevent injuries when dealing with heavy loads?
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Engineering, 04.07.2019 18:10, niyawilliams23
Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10
Answers: 1
Engineering, 04.07.2019 18:10, agpraga23ovv65c
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
Acity has a population of 50,000 people, an average household generated wastewater flow of 430 l/day...
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