A process is accomplished in 4 sequential steps- S1, S2, S3 and S4. The lead times (in minutes) and the number of resources for every step are indicated in the table below. Sub - Process Time (min) No of resources S1 12 1 S2 8 1 S3 16 1 S4 10 1 Assuming infinite customer demand, what is the utilization of process S1? (answer in decimals).

A process is accomplished in 4 sequential steps- S1, S2, S3 and S4. The lead times (in minutes) and the number of resources for every step are indicated in the table below. Sub - Process Time (min) No of resources S1 12 1 S2 8 1 S3 16 1 S4 10 1 Assuming infinite customer demand, what is the utilization of process S1? (answer in decimals).

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter12: Queueing Models

Section: Chapter Questions

Problem 59P

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A process is accomplished in 4 sequential steps- S1, S2, S3 and S4. The lead times (in minutes) and the number of resources for every step are indicated in the table below. Sub - Process Time (min) No of resources S1 12 1 S2 8 1 S3 16 1 S4 10 1 Assuming infinite demand, what is the process flow rate? {keep the time dimension as minutes for this, and answer in decimals). Hi all, I do not know how to answer this questions. Please review and advise. Thank you
Steel City Juice is a local company that makes two kinds of juice: orange juice and apple juice.Demand for orange juice is 60 barrels/hr, while demand for apple juice is 40 barrels/hr. The company only has one machine to extract juice from raw fruit. The machine can extract orange juice at a speed of 150 barrels/hr, or apple juice at 120 barrels/hr. Switching from one type to the other requires 30 minutes cleanup time.Please provide a production schedule and an associated process flow diagram that (i) cycles repeatedly through the two kinds, (ii) meets the required demand, and (iii) minimizes the amount of inventory held. (Here it is assumed that the production machine runs 24 hours a day, 7 days a week ) and what is the maximum inventory level of orange juice?
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?
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 480 units per day. The tasks necessary to produce this product are: Task Time(secs) ImmediatePredecessor u 30 none v 30 u w 6 u x 12 w y 54 x z 30 v,y If the company wants the output rate to be equal to demand, what is the last task performed at the second workstation if tasks are assigned in order of the most following tasks?
The diagram below shows a system that includes 7 operations with their capacities given as units/hr. What is the capacity (units/hr) of this system? Write the steps out manually please
Bill’s Barbershop has two barbers available to cut customers’hair. Both barbers provide roughly the same experience andskill, but one is just a little bit slower than the other. The pro-cess flow in Figure 5.9 shows that all customers go throughsteps B1 and B2 and then can be served at either of the twobarbers at step B3. The process ends for all customers atstep B4. The numbers in parentheses indicate the minutes ittakes that activity to process a customer. a. How long does it take the average customer to completethis process?b. What single activity is the bottleneck for the entireprocess?c. How many customers can this process serve in an hour?
1. A process is accomplished in 4 sequential steps- S1, S2, S3 and S4. The lead times (in minutes) and the number of resources for every step are indicated in the table below. Sub - Process Time (min) No of resources S1 12 1 S2 8 1 S3 16 1 S4 10 1 a.) Assuming infinite demand, what is the utilization of process S2? (answer in decimals) b.) If customers arrive at a constant rate of 3 customers per hour, what is the utilization of S3? (answer in decimals)
A local 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 ,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 precedencerules that must be observed . Such that Task A does not need any predecessors ; task B requires task A to becompleted . To start task C and task Deach require task B to be completed . Task must be completed prior to stating task E. Task F needs both task and task E to be completed . Finally , task G can start only once task F is completed . Given we apply the most remaining tasks rule for balancing the assembly line , with ties broken according to longesttask time first , the tasks that will be assigned to the THIRD workstation are a. D and F b . None is the correct answer c. D only d. E only e. B, C , and D
A TV factory plans to add production lines for its new product and plans to produce as many as 200 units per hour. The production process, production time, and the production process to continue the next production process are described in the table below: (1 day = 8 working hours) Production Process Production Time (s) The production process that follows the next production according to the list below A 12 - B 15 A C 8 A D 5 B,C E 20 D Based on the data above. a. What is the cycle time for the production of the new product? (note: in seconds)b. What is the minimum number of workstations?
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 are
What types of scheduling decisions are management likely to encounter in the following operations? Describe the scheduling decisions in terms of the types of resources to be scheduled and the associated customers or jobs scheduled. Further specify the kinds of objectives that might be appropriate for the situation(s) you chose. a. Hospital b. University c. Moviemaking d. Make-to-order factory Note: you do not have to cover all situations. Please feel free to choose one which you are familiar with.
A TV factory plans to add production lines for its new product and plans to produce as many as 800 units per hour. The production process, production time, and the production process to continue the next production process are described in the table below: (1 day = 8 working hours) Production Process Production Time (s) The production process that follows the next production according to the list below A 12 - B 15 A C 8 A D 5 B,C E 20 D Based on the data above. a. What is the cycle time for the production of the new product? (note: in seconds)b. What is the minimum number of workstations?c. Draw a diagram of the production process.d. With the diagram that you have described above, can the production process run properly according to the plan? Explain the process of each workstation that you have created!.