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

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

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter4: Linear Programming Models

Section: Chapter Questions

Problem 111P

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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 customer demand, what is the utilization of process S1? (answer in decimals).
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?
For a given process, the raw processing time is 102 sec, the bottleneck cycle time is 20 sec/item, and the WIP is 6 items. The expected lead-time (LT) is ____ seconds. Enter a whole number answer.
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?
I already find a. I need help with b Bill's Barbershop has two barbers available to cut customer's hair. Both barbers provide roughly the same experience and skill, but one is just a little bit slower than the other. The process flow below shows that all customers go through steps B1 and B2 and then can be served at either of the two barbers at step B3. The process ends for all customers at step B4. The numbers in parentheses indicate the minutes it takes that activity to process a customer. b. What single activity is the bottleneck for the entire process? B what?
Tailwind, Inc., produces high-quality but expensive training shoes for runners. The Tailwindshoe, which sells for $210, contains both gas- and liquid-filled compartments to provide morestability and better protection against knee, foot, and back injuries. Manufacturing the shoesrequires 10 separate tasks. There are 400 minutes available for manufacturing the shoes inthe plant each day. Daily demand is 60. The information for the tasks is as follows: Task Performance Time (In minutes) Task Must Follow This task A 1 ___ B 3 A C 2 B D 4 B E 1 C.D F 3 A G 2 F H 5 G I 1 E,H J 3/25 I 1. What is the theoretical minimum number of work stations required to satisfy this output rate? 2. Allocate the tasks to work stations taking into consideration the precedence requirements and usingthe LOT rule to break ties between feasible tasks.
A furniture factory makes two types of wooden tables,large and small. See the flowchart below .Small tables are made in batches of 100, and large tables are made in batches of 50. A batch includes a fixed setup time for the entire batch at each process step and a run time for each piece in the batch. Both large and small tables have the same processing times. The capacities of each process step are given, and apply to production of either type of table, as shown in the flowchart. a. What is the capacity of the system, and what is thebottleneck? b. What are the throughput times for batches of large and small tables? c. When producing at a rate of six small tables per hour on average, how many tables will be in the system?
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?
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
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?
Consider a process consisting of five resources that are operated 8 hours per day. Theprocess works on three different products, A, B, and C: Demand for the three different products is as follows: product A, 40 units per day;product B, 50 units per day; and product C, 60 units per day.a. What is the bottleneck?b. What is the flow rate for each flow unit, assuming that demand must be served in the mixdescribed above (i.e., for every four units of A, there are five units of B and six units of C)?
Using the flowchart structure presented in Figure 2-25 in the text, prepare a system flowchart of the proc ess outlined in Problem 3. Assume the following: Hard-copy timesheets are submitted by employees to department management. Managers submit the time sheet data digitally from their department terminals to the automated payroll application located in the data center. The automated system posts the transactions to the digital payroll file. The system also prepares and distributes hardcopy checks and cost center reports to employees and management respectively. Mangers review the reports and file them in their departments.