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1. Calculate the conventional b/c ratios for alternate a. is alternate aeconomically justified?
2. Calculate the modified b/c ratio for alternate a. is alternate a economically justified?
4. Perform a life cycle cost analysis on alternate a.
5. Perfrom a life cycles savings analysis on alternate a.
6. Perform a break-even quantity analysis to calculate thenumber Of projects that must be undertaken each year to justify Alternative a. The laborfor alternate ais $14.00 per hour.
The cylinder B is released from rest. Determine the speed of both masses (vA and vB) after B moves by h m. Also calculate the angular displacement for the pulley D. The diameter of the pulley D is 0.2 m. Neglect all friction.
a rectangular beam made using concrete with fc 6000 psi and steel with fy60000 psi has a width b 20 in. the concrete
A completely mixed activated-sludge plan is being designed for a wastewater flow of 3.0 mgd. The BOD of 225 mg/l is 200 mg/l soluble. The effluent soluble BOD requirement is 7 mg/l (70 percent of the total 10 mg/l).
A 40 cm diameter well has been constructed in a water-table aquifer. A pump capable of continuous discharge at 600 m3/day has been installed to test the well. Observation wells are located 10 meter and 50 meters from the pumped well. After pumping co..
How many truckloads of trucks hauling an average volume of 6 LCY (4.6 LCM) would be required to haul 1 million CCY (764, 600 CCM) of gravel to a dam site
The maximum population that can be served from the new development without exceeding the capacity of the trunk sewer. Diameter, slope, and invert elevations of sewer XB.
a 31' solid circular bar of 2" diameter is fixed to a wall. it is made of aluminum of E=10*10^6. a 30" circular solid 1" diameter aluminum bar is welded to the 2" bar at a 30" centerline perpendicular relative to the other bar per the diagram.
A pump delivers 60 degrees F water at 2000 gpm through a vertical pipeline 300 ft high. Find the minimum horsepower input to the pump. Assume that atmospheric pressure exists at both the pump inlet and the pipeline outlet.
Estimate the contact time to achieve an effluent concentration of 200 fecal coliforms/100 mL using a Cl2 dose of 3 mg/L if the wastewater temperature is 28 oC. Assume the activation energy (Ea) at pH = 7.4 is 6,500 cal/mole.
It has been determined experimentally that the reaction follows frst order kinetics with respect to both oxygen andhydrogen sulfide concentrations: d[H2S]/dt =-k[H2S][O2]
Assume that you borrow $10,000 for five years (annual payments) at a market rate of 5%. Assuming that inflation is 3.5%, what would the equivalent equal monthly payment be in constant dollars
what are the possible combinations of inflow and outflow of water in the tank in a given day. if the water level in the tank is 7ft from the bottom at the start of day, what are the possible water levels in the tank at the end of the day.
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