Task Preceding Tasks A A manufacturing company has set up an assembly line that operates for...

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Task Preceding Tasks A A manufacturing company has set up an assembly line that operates for 8 hours per day to produce its products. The daily demand for the products is 300 units. The tasks involved in this assembly line are listed in the table below: Task Time (seconds) 60 Task Time Preceding Task (seconds) Tasks H 10 B B 50 - I 30 C, D C 30 A J 50 F, G, H D 20 A K 40 I, E, J E 40 A L 60 J F G 60 20 B M 10 K, L B Answer the following questions: a) Draw the precedence diagram of this assembly line, and calculate the workstation cycle time along with the estimated number of workstations required to meet the demand (1 mark). b) Balance the assembly line using the largest number of following tasks as the primary priority rule and the longest-task-time as the secondary priority rule to achieve the demand. Use tables to show the number of following tasks of each task and to arrange the tasks into workstations. Calculate the idle time of each workstation and the efficiency of the assembly line (2 marks). c) If the daily demand increases by 100 units, apply the two strategies below to meet the new demand: (i) Use overtime to meet the new demand using the assembly line of sub-question b) (1 mark) (ii) Re-balance the assembly line using the longest-task-time as the primary priority rule and the largest number of following tasks as the secondary priority rule to achieve the new demand. Use a table to arrange the tasks into workstations. Calculate the idle time of each workstation and the efficiency of the assembly line (2 marks). Task Preceding Tasks A A manufacturing company has set up an assembly line that operates for 8 hours per day to produce its products. The daily demand for the products is 300 units. The tasks involved in this assembly line are listed in the table below: Task Time (seconds) 60 Task Time Preceding Task (seconds) Tasks H 10 B B 50 - I 30 C, D C 30 A J 50 F, G, H D 20 A K 40 I, E, J E 40 A L 60 J F G 60 20 B M 10 K, L B Answer the following questions: a) Draw the precedence diagram of this assembly line, and calculate the workstation cycle time along with the estimated number of workstations required to meet the demand (1 mark). b) Balance the assembly line using the largest number of following tasks as the primary priority rule and the longest-task-time as the secondary priority rule to achieve the demand. Use tables to show the number of following tasks of each task and to arrange the tasks into workstations. Calculate the idle time of each workstation and the efficiency of the assembly line (2 marks). c) If the daily demand increases by 100 units, apply the two strategies below to meet the new demand: (i) Use overtime to meet the new demand using the assembly line of sub-question b) (1 mark) (ii) Re-balance the assembly line using the longest-task-time as the primary priority rule and the largest number of following tasks as the secondary priority rule to achieve the new demand. Use a table to arrange the tasks into workstations. Calculate the idle time of each workstation and the efficiency of the assembly line (2 marks).