Using the assembly-line balancing procedure, which of the following is the theoretical minimum number of workstations if the task times for the eight tasks that make up the job are 7, 4, 7, 8, 9, 4, 3, and 6 minutes, and the cycle time is 8 minutes?
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Using the assembly-line balancing procedure, which of the following is the theoretical minimum number of workstations if the task times for the eight tasks that make up the job are 7, 4, 7, 8, 9, 4, 3, and 6 minutes, and the cycle time is 8 minutes?
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None of these choices are correct.
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3
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8
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5
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6
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- The table below shows the time for each work element in an manual assembly process, along with the predecessor(s) required for each element. The ideal cycle time is 1.4 minutes, the repositioning time is 0.1 minutes, and there is one worker at each station. Work element A B C D E F G H I J Time (minutes) 0.7 0.4 0.2 0.3 0.5 0.4 0.6 0.5 0.3 0.2 Immediate predecessors - A A B B C E,F D,E G,H I 1. Using the ranked positional weights method, assign work elements to stations.As part of a major plant renovation project, the industrial engineering department has been asked to balance a revised assembly operation to achieve an output of 230 units per 8-hour day. Task times and precedence relationships are as follows: Task Duration(minutes) ImmediatePredecessor a 0.2 - b 0.6 a c 0.4 b d 0.7 - e 1.6 d f 1.8 c g 2 e, fFrancis 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.
- Francis 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 five workstations. The tasks and the order in which they must be performed are shown in th following table. Tasks cannot be split, and it would be too expensive to duplicate any task. TASK TIME (MINUTES) IMMEDIATE PREDECESSOR rint TASK A 2.0 B 2.0 3.0 1.0 А, В, с 3.0 2.0 G 3.0 b. What is the workstation cycle time required to produce 15 units per hour? (Round your answer to 1 decimal place.) Workstation cycle time minutes d. 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? (Round your answer to 1 decimal place.)As part of a major plant renovation project, the industrial engineering department has been asked to balance a revised assembly operation to achieve an output of 240 units per eight-hour day. Task times and precedence relationships are as follows: Task Duration(minutes) ImmediatePredecessor a 0.2 - b 0.4 a c 0.2 b d 0.4 - e 1.2 d f 1.2 c g 1.0 e, f Click here for the Excel Data File Do each of the following: a. Determine the minimum cycle time, the maximum cycle time, and the calculated cycle time. (Round your answers to 1 decimal place.) b. Determine the minimum number of stations needed. (Round your answer to the next whole number.) c. Assign tasks to workstations on the basis of greatest number of following tasks. Use longest processing time as a tiebreaker. If ties still exist, assume indifference in choice. d. Compute the percentage of idle time for the assignment in part d. Use the actual bottleneck cycle time in your calculation.…As part of a major plant renovation project, the industrial engineering department has been asked to balance a revised assembly operation to achieve an output of 250 units per 8-hour day. Task times and precedence relationships are as follows: Task Duration(minutes) ImmediatePredecessor a 0.5 - b 0.4 a c 0.5 b d 0.3 - e 1.8 d f 1.9 c g 2 e, f Do each of the following: a. Determine the number of followers for each task. (Please answer number of tasks following task for A-G)
- Waldorf Astoria Spa & Health Club at Waldorf Astoria Chicago offers high-quality hair-styling and physical relaxation services at a reasonable price, so it always has unlimited demand. The process comprised of five tasks that are completed in the sequence described below. (The time required for each task is shown in parenthesis). Task 1: Welcome a guest and offer homemade herb tea (10 minutes) Task 2: Wash and condition hair (10 minutes) Task 3: Neck, shoulder, and back stress release massage (10 minutes) Task 4: Design the hairstyle and do the hair (25 minutes) Task 5: Check out the guest (5 minutes) Three servers (S1, S2, and S3) offer the services in a worker-paced line. The assignment of tasks to servers is the following: S1 completes Task 1. S2 completes Tasks 2 and 3. S3 completes Tasks 4 and 5. Assume a wage rate of $18 per hour. What are the direct labor costs for one guest?Kiko Teddy Bear is a manufacturer of stuffed teddy bears. Kiko would like to be able to produce 40 teddy bears per hour on its assembly line. The following information will assist in answering the questions that follow: Task Information for Kiko Teddy Bear Work Element Task Description Immediate Predecessor Task time (in seconds) A Cut teddy bear pattern None 90 B Sew teddy bear cloth a 75 C stuff teddy bear b 50 D glue on eyes c 20 E glue on nose c 15 F sew on mouth c 35 G attach manufacturer's label b 15 H Inspect and pack teddy bear d,e,f,g 40 a. Draw a precedence diagram. b. What cycle time would provide the desired output? c. What is the maximum possible output of the line? d. What is the theoretical minimum number of workstations using the cycle time computed in” b “ above? e. Assign tasks to workstations using the cycle time in “b” above. f. Calculate the efficiency and idle time percentage of the line.The Sun River beverage company is a regional producer of teas, exotic juices, and energy drinks. With an interest in healthier lifestyles, there has been an increase in demand for its sugar-free formulation. The final packing operation requires 13 tasks. Sun River bottles its sugar-free product 5 hours a day, 5 days a week. Each week, there is a demand for 3,000 bottles of this product. TASK TIME (MINUTES) PRECEDING TASK 1 0.1 — 2 0.1 1 3 0.1 2 4 0.2 2 5 0.1 2 6 0.2 3, 4, 5 7 0.1 1 8 0.1 7 9 0.2 8 10 0.1 9 11 0.2 6 12 0.2 10, 11 13 0.1 12 Using the following data, solve the assembly-line balancing problem and calculate the efficiency of your solution. Use the longest task time for your decision criteria. Note: Round your answer to the nearest whole percent.
- A company is designing a product layout for a new product. It plans to use this production line eight hours a day in order to meet projected demand of 400 units per day. The tasks necessary to produce this product are detailed in the table below. Time Task Predecessor (seconds) A 50 A 36 26 22 E B, D 70 F C, E 30 What is the required cycle time in seconds in order to meet the projected demand? (Answer with two decimal places i.e. 26.00, 326.80) Answer: B C DAs part of a major plant renovation project, the industrial engineering department has been asked to balance a revised assembly operation to achieve an output of 230 units per 7-hour day. Task times and precedence relationships are as follows: Duration Immediate Task (minutes) Predecessor 0.1 b 0.5 a 0.3 0.4 e 1.7 d. 1.7 1.8 e, fAn 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…