Shown below are the tasks, times, and precedence requirements for the work required to assemble a copier machine. Production time per day = 480 minutes. Desired output per day = 40 units. TASK TASK TIME, mins |IMMEDIATE PREDECESSOR/S A 10 11 5 в A B D 4 B E 12 A F 3 С, D G 7 F H 11 E 3 G, H ΣΤt 6
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You may use either clustering or heuristics in assigning tasks to workstations
1. How many workstations should be set up in this production line?
2.Which tasks should be performed in each workstation?
3. Draw the diagram of the production line.
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- Alocal toy manufacturer is using a production line that runs 8 hours per day and produces a toy that requires a total of 7 tasks to be performed. The daily demand is 100 toys. Times of the tasks are 2.73, 2.01 201 2.13, 2.0, 2.61, 2.71 , and 2.95 minutes for A,B,C,D,E,F, and respectively. However, due to the nature of the product there are precedence rules that must be observed. Such that Task Adoes not need any predecessorsB requires task A to completed. To start task C and task Deach require task B to be completed. Task C must be completed prior to stating task E. Task F needs both task D and task Eto be completed. Finally, task G can start only once task Fis completed.Given we apply the most remaining tasks rule for balancing the assembly line with ties broken according to longest task time firstthe tasks that will be assigned to the SECOND workstation areAn assembly plant for the Blood Pressure RX, a portable blood pressure device, has 400 minutes available daily in the plant for the device, and the average demand is 80 units per day. Final assembly requires 6 separate tasks. Information concerning these tasks is given in the following table. Task Performance Time (minutes) Task Must Follow Task Listed Below A 4 - B 1 - C 1 A, B D 3 C E 4 D F 2 E b) Given the demand, what is the cycle time for this operation? The cycle time for this operation is enter your response here minutes/unit (enter your response as a whole number). c) What is the theoretical minimum number of workstations? The theoretical minimum number of workstations is enter your response here stations (enter your response as a whole number and, if your unrounded answer includes decimal values,…Alocal toy manufacturer is using a production line that runs 8 hours per day and produces a toy that requires a total of 7 tasks to be performied. The daily demand is 150 toys. Times of the tasks are 2.73, 2.01, 2.13, 2.0, 2.61, 2.71, and 2.95 minutes for A, B, C, D, E, F, and G, respectively. However, due to the nature of the product there are precedence rules that must be observed. Such that Task A does not need any predecessors; task B requires taskA to be completed. To start task Cand task D, each require task B to be completed. Task C must be completed prior to stating task E. Task F needs both task D and task Eto be completed. Finally, task G can start only once taskFis completed.What is the minimum number of workstations needed?
- The desired daily output for an assembly line is 540 units. This assembly line will operate 720 minutes per day. The following table contains information on this product's task times and precedence relationships: TASK TASK TIME(SECONDS) IMMEDIATEPREDECESSOR A 35 — B 25 A C 35 A D 55 B E 5 B F 15 C G 30 E-D H 5 F-G b. What is the workstation cycle time? c. Balance this line using the largest number of following tasks. Use the longest task time as a secondary criterion. (Leave no cells blank - be certain to enter "0" wherever required.)An assembly line is to be designed to operate 7½ hours per day and supply a steady demand of 300 units per day. Here are the tasks and their performance times: TASK PRECEDING TASKS PERFORMANCETIME (SECONDS) A — 70 B — 40 C — 45 D A 10 E B 30 F C 20 G D 60 H E 50 I F 15 J G 25 K H, I 20 L J, K 25 What is the workstation cycle time required to meet the desired output rate? What is the theoretical minimum number of workstations required to meet the desired output rate? Note: Round up your answer to the next whole number. Assign tasks to workstations using the longest operating time. What is the efficiency of your line balance, assuming it is running at the cycle time determined in part b? Note: Round your answer to 1 decimal place. Suppose demand increases by 10 percent. How would you react to this? Assume that you can operate only 71/2 hours per day. Note: Round your answer for cycle time down to the nearest whole number. Round your…An assembly line with 17 tasks is to be balanced. The longest task is 2.4 minutes, and the totaltime for all tasks is 18 minutes. The line will operate for 450 minutes per day.a. What are the minimum and maximum cycle times?
- The manufacturer of children’s toys designed a special toy truck that can be assembled in 8 basic steps.The required time and predecessors for the tasks can be seen in the table below. There are 7.5 productivehours available in a day and the manufacturer wishes to produce 400 units..Task Time (sec) PredecessorA 45 --B 50 AC 20 AD 55 AE 15 DF 65 DG 25 EH 35 B, C, F, G Assign the tasks to work stations using the LOT rule. The process design team realizes that the potential spike in demand for this device requiresincreased output. They elect to add a seventh worker to their production team at the firststation. What is the net effect of adding this worker?Eddys Pizza is currently redesigning its order-processing and pizza-making procedures for itsoperations which usually start at 5pm and close at 2am. For Eddys to meet customers’ speedydelivery requirement, six elements must be completed as summarised in the table below.WorkElementDescription Precedence Time (Mins)1 Receive customer order - 32 Shape dough 1 23 Prepare toppings 1 34 Assemble Pizza 2, 3 45 Bake pizza 4 46 Select complementary drink - 17 Deliver pizza 5, 6 4i. Draw the precedence diagram for the pizza making process.ii. If the demand for pizza is 90 pieces during the operating time, calculate the desired cycletime iii. Balance the line and calculate its efficiencyFrancis Johnson’s plant needs to design an efficient assembly line to make a new product. The assembly line needs to produce 15 units per hour, and there is room for only four workstations. The tasks and the order in which they must be performed are shown in the following table. Tasks cannot be split, and it would be too expensive to duplicate any task. TASK TASK TIME (MINUTES) IMMEDIATE PREDECESSOR A 1 — B 2 — C 3 — D 1 A, B, C E 3 C F 2 E G 3 E What is the workstation cycle time required to produce 15 units per hour? Note: Round your answer to 1 decimal place. Balance the line to use the fewest possible workstations to meet the cycle time found in part (b). Use whatever method you feel is appropriate. What is the efficiency of your line balance, assuming the line operates at the cycle time from part (b)? Note: Round your answer to 1 decimal place.
- Sue Helms Appliances wants to establish an assem-bly line to manufacture its new product, the Micro Popcorn Popper. The goal is to produce five poppers per hour. The tasks,task times, and immediate predecessors for producing one MicroPopcorn Popper are as follows:TASK TIME (min) IMMEDIATEPREDECESSORSA 10 —B 12 AC 8 A, BD 6 B, CE 6 CF 6 D, Ea) What is the theoretical minimum for the smallest number ofworkstations that Helms can achieve in this assembly line?b) Graph the assembly line, and assign workers to workstations.Can you assign them with the theoretical minimum?c) What is the efficiency of your assignment?Provide the following values: PV, EV, AC, CPI, SPI, EAC, ETC, BAC Each of the iterations of four that each will take 20 days to complete at a cost of $20,000 per iteration. Today is the end of what should be iteration three. The current status of the project is as follows: Iteration One complete, spent $20,000 Iteration Two complete, spent $25,000 Iteration Three half done, spent $17,000 Iteration Four Not started.A local toy manufacturer is using a production line that runs hours per day and produces a toy that requires a total of 7 tasks to be performed. The daily demand is 100 toys. Times of the tasks are 2.73, 201 01, 2.13, 2.0, 2.61 2.71. and 2.95 minutes for A, BC, D , and G, respectively. However, due to the nature of the product there are precedence rules that must be observed. Such that Task A does not need any predecessors; task B requires task A to be completed. To start task and task each require task B to be completed. Task must be completed prior to stating task E. Task F needs both task Dand task E to be completed. Finally, task G can start only once task Fis completed . What should be the calculated cycle time in minutes?