Consider the following multiple-objective linear program: maximize 21 = zxi + x2maximize a = 3x1 4- 7a2subject to: 4x1 - 122 5 -6-4x1 4- 6r 5 124x1 4- zjq 2 8x1 + )q 5 94)q 5 16x1, )q 2 o.(3) plot the feasible region in decision space for this problem.0: ) plot the corresponding feasible region in objective space for this problem. for each extreme point indicate if it is anoninferior or a dominated solution.(c) use the constraint method (graphically) to generate an approximation of the noninferior set having 6 noninferiorsolutions evenly spaced along the 21 axis.(d) use the constraint method (graphically) to generate an approximation of the noninferior set having 6 noninferiorsolutions evenly spaced along the 22 axis.

A)-in the process of engineering design, explain the contribution of material selection. b)- explain the procedure of synthesis as is employed in engineering design. c)- is there any relationship between ergonomics and engineering design? explain. d)- safety consideration in engineering design includes human, product and the enviroment . explain how safety will be incorporated into the design?

Arigid tank contains 10 kg of air at 137 kpa (abs) and 21°c. more air is added to the tank until the pressure and temperature rise to 242 kpa (abs) and 32°c, respectively. determine the amount of air added to the tank. [r-0.287 kj/kg k]

Ashielded metal arc-welding operation is accomplished in a work cell by a fitter and a welder. the fitter takes 5.5 min to load components into the welding fixture at the beginning of the work cycle, and 1.5 min to unload the completed weldment at the end of the cycle. the total ength of the weld seams 1200 mm, and the travel speed used by the welder averages 300 mm/min. every 600 mm of seam length, the welding stick must be changed, which takes 0.8 min. while the fitter is working, the welder is idle (resting): and while the welder is working the fitter is idle. (a) determine the average arc-on time as a fraction of the work cycle time. (b) how much improvement in arc-on time would result if the welder used flux-cored arc welding (manually operated), given that the spool of weld wire must be changed every 10 weldments, and it takes the welder 5.0 min to accomplish the change? (c) what are the production rates for these two cases (weldments completed per hour)? attach your work and solutions.