A company makes two kinds of leather belts A & B, Belt A is of high quality and belt B is of low quality. The respective profit are

Rs. 4 and Rs. 3 per belt. The production of each of type A belt

requires twice as much time as of belt of type B, and if all belts were

of B type, the company would make 1000 belts per day. The supply

of leather is sufficient for only 800 belts per day (for A & B type

combined). Belt A requires a fancy buckle and only 400 of these are

available per day. There are 700 buckles a day available for belt B.

What should be the daily production of each type of belt? Formulate

this problem as an LP model and solve it using the simplex method.

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature

List 3 options on how to reduce knocking problens during engine process,

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.