c. Balance this line using the largest number of following tasks. Use thelongest task time as a secondary criterion. (Leave no cells blank - becertain to enter "0" wherever required.)Work StationTaskIdle TimeIIIVd. What is the efficiency of your line balance, assuming it is running atthe cycle time in part b? (Round your answer to 1 decimal place.)Efficiency% The desired daily output for an assembly line is 360 units. Thisassembly line will operate 690 minutes per day. The following tablecontains information on this product's task times and precedencerelationships:TASK TIMEIMMEDIATETASK(SECONDS)PREDECESSOR3055A50A55E35100G60E-F45D-Gb. What is the required workstation cycle time to meet the desiredoutput rate?Workstation cycle timeseconds per unit

Line balancing is the process of allocating task to workstations based on the cycle time and…

Answered: d. What is the efficiency of your line…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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The following tasks are to be performed on an assembly line: TASK SECONDS TASKS THAT MUST PRECEDE A 20 — B 7 A C 20 B D 22 B E 15 C F 10 D G 16 E, F H 8 G The workday is seven hours long. The demand for completed product is 750 per day. Find the cycle time required to meet the desired output rate. Note: Round your answer to 1 decimal place. What is the theoretical number of workstations required to meet the desired output rate? Note: Round up your answer to the next whole number. Balance the line using sequential restrictions and the longest-operating-time rule. Determine the task under each workstation and the idle time for each such task. Note: Round your answers to 1 decimal place. What is the efficiency of the line balanced as in part (d) assuming it is running at the cycle time determined in part (a)? Note: Round your answer to 1 decimal place. Suppose that demand rose from 750 to 800 units per day. Determine the cycle time. (Use the…
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…
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 with 20 activities is to be balanced. The total amount of time to complete all 20 activities is 50 minutes. The longest activity takes 2.4 minutes and the shortest takes 0.9 minute. The line will operate for 300 minutes per day. What are the maximum and minimum cycle times? Round your answers to one decimal place. Maximum cycle time: minutes Minimum cycle time: minutes How much daily output will be achieved by each of those cycle times? Round your answers to the nearest whole number. Daily output achieved by maximum cycle time: units/day Daily output achieved by minimum cycle time: units/day
A shop works a 400-minute day. The manager of the shop wants an output of 200 units per day for the assembly line that has the elemental tasks shown in the table. Do the following: b.) Assign tasks according to the most following tasks rule. Break ties with the greatest positional weight rule. c.) Assign tasks according to the greatest positional weight rule. Break ties with the most following tasks rule. d.) Compute the efficiency level for each rule. Which one yields the better set of assignments in this instance?
An assembly line is to operate eight hours per day with a desired output of 200 units per day. The following table contains information on this product’s task times and precedence relationships: TASK TASK TIME(SECONDS) IMMEDIATEPREDECESSOR A 60 — B 60 A C 50 A D 70 A E 30 B, C F 110 C, D G 70 E, F H 70 G b. What is the required workstation cycle time to meet the desired output rate? (Round your answer to the nearest whole number.) c. Balance this line using the longest task time. (Leave no cells blank - be certain to enter "0" wherever required.) d. What is the efficiency of your line balance, assuming it is running at the cycle time determined in part b? (Round your answer to 1 decimal place.)
An 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,…
The following tasks are to be performed on an assembly line: TASK SECONDS TASKS THAT MUST PRECEDE A 30 — B 16 A C 21 B D 15 B E 17 C F 14 D G 20 E, F H 9 G The workday is 8 hours long. The demand for completed product is 900 per day. Find the cycle time required to meet the desired output rate. Note: Round your answer to 1 decimal place.
Balance the assembly line shown below for (a) a shift output of 60 pieces and (b) a shift output of 40 pieces. Assume an 8-hour shift, and use the rule: choose the assignable task with the longest processing time. Compute the line efficiency for each case. Fill in the table below for a shift output of 60 pieces. Break ties by choosing the lowest task number. If your answer is zero, enter "0". Round your answers to the nearest whole number. Workstation Tasks Total Time Idle Time 1 2 3 4 Total What is the assembly-line efficiency? Round your answer to one decimal place. % Fill in the table below for a shift output of 40 pieces. Break ties by choosing the lowest task number. If your answer is zero, enter "0". Round your answers to the nearest whole number. Workstation Tasks Total Time Idle Time 1 2 3 Total What is the assembly-line efficiency? Round your answer to one 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 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.
Gordon Miller's job shop has four work areas, A, B, C, and D. Distances in feet between centers of the work areas are: A B C D A − 4 10 8 B − − 5 9 C − − − 9 D − − − − Workpieces moved per week between work areas are: A B C D A − 900 700 600 B − − 400 300 C − − − 600 D − − − − It costs Gordon $3 to move 1 work piece 1 foot. The weekly total material handling cost of the layout =....... $nothing (enter your response as a whole number). The weekly total material handling cost of the layout =....... nothing dollars (enter your response as a whole number).
An assembly line is to operate eight hours per day with a desired output of 250 units per day. The following table contains information on this product’s task times and precedence relationships: TASK TASK TIME (SECONDS) IMMEDIATE PREDECESSOR A 50 — B 20 A C 25 A D 35 A E 60 B, C F 60 C, D G 50 E, F H 90 G What is the required workstation cycle time to meet the desired output rate? Note: Round your answer to the nearest whole number. Balance this line using the longest task time. Note: Leave no cells blank - be certain to enter "0" wherever required. 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.

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