4. Suppose that there are 17 tasks to be completed to assemble a product. Task times and the precedence relations are gi
Posted: Fri May 20, 2022 7:55 am
4. Suppose that there are 17 tasks to be completed to assemble a product. Task times and the precedence relations are given in below table. 1 6 7 8 9 10 11 12 13 14 15 16 17 2 | 3 | 4 | 5 73 6 5 4 5 11111 7 4 5 5 1 زرا 3 7 5 3 Task Task Time (min.) Immediate Predecessor(s) 2 2,3 44,5 7 8,9 10, 11 | 11 6 12 13, 14 15, 16 (a) Draw the precedence diagram for the given tasks. (b) What is the minimum theoretical number of workstations required if the cycle time is assumed to be 20 minutes? (c) Assuming a cycle time of 20 minutes, balance the line by the ranked positional weight method, and • Show the workstations on the precedence diagram. • Determine the idle time on each workstation. • Determine the layout of workstations (flow of material through the workstations)