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Develop a minimum makespan schedule using Johnson's rule. The schedule using Johnson's rule is - - - - - . Choose the correct Gantt chart with the minimum makespan schedule. The correct graph is

Develop a minimum makespan schedule using Johnson's rule. The schedule using Johnson's rule is - - - - - . Choose the correct Gantt chart with the minimum makespan schedule. The correct graph is

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
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On Monday morning, Baxter Industries has the following jobs waiting for processing in two departments, milling, and drilling, in that order.

  Time Required (hours)
Job Mill Drill
216 7   11  
327 6   10  
462 8   4  
519 5   8  
258 3   5  
617 12   15  

Develop a minimum makespan schedule using Johnson's rule.

The schedule using Johnson's rule is - - - - - .

Choose the correct Gantt chart with the minimum makespan schedule.

The correct graph is .

The image consists of two sections, labeled C and D, each showing timelines for "MILL" and "DRILL" operations. These timelines indicate a sequence of jobs completed over specific time intervals. ### Section C: #### MILL Operation: - **Time Intervals:** 0, 3, 8, 14, 21, 29, 41 - **Jobs:** 258, 519, 327, 216, 462, 617 The timeline shows when each job is completed during the MILL operation. The intervals indicate the start of processing each job. #### DRILL Operation: - **Time Intervals:** 0, 3, 8, 16, 26, 37, 41 - **Jobs:** 258, 519, 327, 216, 462, 617 This timeline mirrors the structure of the MILL operation but with different time markers for job completion. ### Section D: #### MILL Operation: - **Time Intervals:** 0, 8, 20, 27, 33, 38, 41 - **Jobs:** 462, 617, 216, 327, 519, 258 The time intervals here highlight a different sequencing of jobs compared to Section C. #### DRILL Operation: - **Time Intervals:** 0, 8, 12, 35, 46, 56, 64, 69 - **Jobs:** 462, 617, 216, 327, 519, 258 This operation's timeline extends further, reflecting more job completions over a longer period compared to the MILL operation in this section. ### Overall Observation: The diagrams provide a visual representation of job scheduling in two different operation processes, highlighting differences in time intervals and job order between MILL and DRILL operations across sections C and D.
Transcribed Image Text:The image consists of two sections, labeled C and D, each showing timelines for "MILL" and "DRILL" operations. These timelines indicate a sequence of jobs completed over specific time intervals. ### Section C: #### MILL Operation: - **Time Intervals:** 0, 3, 8, 14, 21, 29, 41 - **Jobs:** 258, 519, 327, 216, 462, 617 The timeline shows when each job is completed during the MILL operation. The intervals indicate the start of processing each job. #### DRILL Operation: - **Time Intervals:** 0, 3, 8, 16, 26, 37, 41 - **Jobs:** 258, 519, 327, 216, 462, 617 This timeline mirrors the structure of the MILL operation but with different time markers for job completion. ### Section D: #### MILL Operation: - **Time Intervals:** 0, 8, 20, 27, 33, 38, 41 - **Jobs:** 462, 617, 216, 327, 519, 258 The time intervals here highlight a different sequencing of jobs compared to Section C. #### DRILL Operation: - **Time Intervals:** 0, 8, 12, 35, 46, 56, 64, 69 - **Jobs:** 462, 617, 216, 327, 519, 258 This operation's timeline extends further, reflecting more job completions over a longer period compared to the MILL operation in this section. ### Overall Observation: The diagrams provide a visual representation of job scheduling in two different operation processes, highlighting differences in time intervals and job order between MILL and DRILL operations across sections C and D.
On Monday morning, Baxter Industries has the following jobs waiting for processing in two departments, milling, and drilling, in that order. | Job | Time Required (hours) | |-----|-----------------------| | | Mill | Drill | | 216 | 7 | 11 | | 327 | 6 | 10 | | 462 | 8 | 4 | | 519 | 5 | 8 | | 258 | 3 | 5 | | 617 | 12 | 15 | Develop a minimum makespan schedule using Johnson's rule. The schedule using Johnson's rule is [Select -] - [Select -] - [Select -] - [Select -] - [Select -] - [Select -]. Choose the correct Gantt chart with the minimum makespan schedule. The correct graph is [Select -]. **Gantt Charts** **A.** - **MILL** - Time: 0 | 3 | 8 | 14 | 21 | 33 | 41 - Job: 258 | 519 | 327 | 216 | 617 | 462 - **DRILL** - Time: 0 | 3 | 8 | 16 | 26 | 37 | 52 | 56 - Job: 258 | 519 | 327 | 216 | 617 | 462 **B.** - **MILL** - Time: 0 | 7 | 13 | 21 | 26 | 29 | 41 - Job: 216 | 327 | 462 | 519 | 258 | 617 These Gantt charts illustrate the processing times for each job in the mill and drill departments. The charts detail the sequence and time intervals for each job's completion.
Transcribed Image Text:On Monday morning, Baxter Industries has the following jobs waiting for processing in two departments, milling, and drilling, in that order. | Job | Time Required (hours) | |-----|-----------------------| | | Mill | Drill | | 216 | 7 | 11 | | 327 | 6 | 10 | | 462 | 8 | 4 | | 519 | 5 | 8 | | 258 | 3 | 5 | | 617 | 12 | 15 | Develop a minimum makespan schedule using Johnson's rule. The schedule using Johnson's rule is [Select -] - [Select -] - [Select -] - [Select -] - [Select -] - [Select -]. Choose the correct Gantt chart with the minimum makespan schedule. The correct graph is [Select -]. **Gantt Charts** **A.** - **MILL** - Time: 0 | 3 | 8 | 14 | 21 | 33 | 41 - Job: 258 | 519 | 327 | 216 | 617 | 462 - **DRILL** - Time: 0 | 3 | 8 | 16 | 26 | 37 | 52 | 56 - Job: 258 | 519 | 327 | 216 | 617 | 462 **B.** - **MILL** - Time: 0 | 7 | 13 | 21 | 26 | 29 | 41 - Job: 216 | 327 | 462 | 519 | 258 | 617 These Gantt charts illustrate the processing times for each job in the mill and drill departments. The charts detail the sequence and time intervals for each job's completion.
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