8. Operations times of servicing of Washing Machines are given below. The first operationinvolves cleaning in Machine 1 and the second operation involves oiling in Machine 2.a. Determine a sequence that will minimize the total completion time for thisgroup of jobs, following Johnson's Rule.b. Construct a chart of the operations of the jobs at the two work centers anddetermine idle time of each line, assuming no other activities are involved.Processing times (Hrs.) is as follows:JOBS: AEFMachine 1: 548.6.12Machine 2:5 39.8.15

Answered: 8. Operations times of servicing of…

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...

See similar textbooks

Similar questions

2. A small restaurant is creating a schedule for its wait staff to meet its expected weekly demand. The staff requirements have been determined to be: day monday tuesday wednesday thursday friday saturday sunday 1 staff 3. 3. The restaurant would like its staff to have two consecutive days off, with a preference given to Saturday and Sunday, or one of those two days if the pair is not possible. (a) Create a schedule to meet the staff requirements. How many wait staff are needed? (b) The restaurant believes regular maintenance of the kitchen is important. The kitchen staff would like 1 extra worker whenever they perform main- tenance. On which days of the week should maintenance be scheduled? (c) The restaurant wants to create a 'kid's day' (young children eat for free) to attract customers on days with low demand. Given your staff schedule, which day is best to implement this promotion.
The following table contains information regarding jobs that are to be scheduled through one machine: Job Processing Time (Days) Due date A 4 20 B 12 30 C 2 15 D 11 16 E 10 18 F 3 5 G 6 9 Qus 1: Find the FCFS Schedule? Qus 2: Find the SOT Schedule? Qus 3:Find the DDate Schedule? Qus 4: What are the mean flow time and average lateness for each of the schedule above? Qus 5: Which priority rule is appropriate for job scheduling? Justify your answer.
Given the projects displayed in Table 18.21, if SPT is used to sequence the jobs, what isthe average inventory of the projects (in projects)?
Given the jobs displayed in Table 18.17, if SPT is used to sequence the jobs, what is theflow time of job F (in minutes)?
Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You will get up vote for sure.
1. A production department of a textile firm received six different orders this week. They have calculated the processing time presented as a table (below). They have also put the due dates for each job. Job A с E B D F Process. Time 2 4 5 8 10 12 Due Date 7 4 15 16 17 18 Based on the table please provide four sequences to complete the jobs: a) Using first come first served (FCFS) assuming the letters represent the order they arrive (A first, B next, then C, etc..) b) Using shortest processing time c) Using longest processing time d) Using due dates Calculate "average completion time", "average number of jobs in the system" and "average job lateness" for all the sequences you have generated above.
Fiona cleans offices. She is allowed 5 seconds per square foot. She cleans building A, which is 3,024 square feet, and building B, which is 2,424 square feet. Will she finish these two buildings in an 8-hour shift? Will she have time for a break? Round intermediate calculations to two decimals and final answer to whole number. (yes or no), she (will or will not) finish in an 8-hour shift, and she (can or cannot) have a break of _____ minutes.
*Explain with more details* An employee in Laboratory A is scheduled to work from 8:00 AM to 4:30 PM, with one break for lunch from 12:00 to 1:00 PM. The employee accurately records her arrival at work at 8:00 AM. The employee then walks to the company's cafe, gets breakfast, and returns 15 minutes later and begins working. Is the employer obligated to pay the employee for the period covered from 8:00 AM to 8:15 AM?
Dan's Auto Detailing business performs two major activities: exterior cleanup and interior detailing. Based on the size of car and condition, time estimates for six cars on Monday morning are as shown in the accompanying table. Car Number 1 5 6 Exterior Interior 55 75 4 65 35 50 60 45 90 35 40 a. Sequence the cars so that all exterior cleanup is done first and total completion time is minimized. The sequence is -Select-- -Select- -Select- -Select- -Select-- -Select- 2 3 80 20
33) Workstation #1 Given the following queue of 4 jobs to be processed at Workstation #1: Job Processing Time (Days) # Days Until Due A 5 12 B 11 20 C 7 10 D 9 14 In what sequence will the jobs be completed if the DDATE rule is used? Group of answer choices a) A-C-D-B b) C-A-D-B c) A-B-C-D d) C-D-A-B 34)What is the average completion time if the FCFS rule is used? Group of answer choices a) 76 b) 72 c) 31 d) 18 e) 19 f) 56

Recommended textbooks for you

Practical Management Science

Operations Management

ISBN:

9781337406659

Author:

WINSTON, Wayne L.

Publisher:

Cengage,

Operations Management

ISBN:

9781259667473

Author:

William J Stevenson

Publisher:

McGraw-Hill Education

Operations and Supply Chain Management (Mcgraw-hi…

Operations Management

ISBN:

9781259666100

Author:

F. Robert Jacobs, Richard B Chase

Publisher:

McGraw-Hill Education

Practical Management Science

Operations Management

ISBN:

9781337406659

Author:

WINSTON, Wayne L.

Publisher:

Cengage,

Operations Management

ISBN:

9781259667473

Author:

William J Stevenson

Publisher:

McGraw-Hill Education

Operations and Supply Chain Management (Mcgraw-hi…

Operations Management

ISBN:

9781259666100

Author:

F. Robert Jacobs, Richard B Chase

Publisher:

McGraw-Hill Education

Business in Action

Operations Management

ISBN:

9780135198100

Author:

BOVEE

Publisher:

PEARSON CO

Purchasing and Supply Chain Management

Operations Management

ISBN:

9781285869681

Author:

Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson

Publisher:

Cengage Learning

Production and Operations Analysis, Seventh Editi…

Operations Management

ISBN:

9781478623069

Author:

Steven Nahmias, Tava Lennon Olsen

Publisher:

Waveland Press, Inc.

SEE MORE TEXTBOOKS