Homework#4 Due 11/1/X , D 1E 1081 Exam 1 xC Solved: How do facility I C Secure h
ID: 2571374 • Letter: H
Question
Homework#4 Due 11/1/X , D 1E 1081 Exam 1 xC Solved: How do facility I C Secure https://ttu blackboard.com/bbcswebdav/pid 3049034-dt-content-rid-166891 531/courses/2018274E-3328-001/3328%20Hw%20%234.pdf at tne Degin mllig or me crass on 1 1 1412U1 7 Provide answers to all questions. Follow the Homework submission guidelines/ requirements (already made available in Blackboard) 1.a. Explain different kinds of scheduling techniques available for short -term scheduling within organizations. b. Five engine blocks are waiting for processing. The processing times have been estimated. Expected completion times have been agreed. The table shows the situation as of Monday morning, Customer pickup times are measured in business hours from Monday morning. Processing Time, Including Setup (hours) Scheduled Customer Pickup Time business hours from now) 10 12 20 18 15 Econoline 150 12 Determine the schedule by using the EDD rule and then the SPT rule, and calculate the average hours early, hours past due, WIP inventory for each method. ii. If low job flow times are critical, which rule should be chosen? iii. If WIP inventories are critical, which rule should be chosen? c. Find the minimum makespan possible for scheduling the following five jobs (on Motor repairs) on 2-workstations using the Johnson's rule. Time (hr) Motor Workstation 1 Workstation 2 M1 M2 M3 M4 M5 12 15 10 16Explanation / Answer
Answer to 1(a)
The different kind of scheduling technique in short term production processes within organization are as follows:
(i) First Come First Served Scheduling
(ii) Earliest Due Dates Scheduling
(iii) Shortest Processing Time Scheduling
(iv) Slack Time Remaining Scheduling
(v) Critical Ration Scheduling
Answer to 1(b)
(I)
Average Hours Early = Total Hrs Earliest/No. Of Jobs
= 3/5 Hrs
= 0.6 Hrs
Average Hours Past Time= Total Hrs Tardiness/No. Of Jobs
= 36/5 Hrs
= 7.2 Hrs
Average WIP Inventory = Total Flow Time/Highest Flow time
= 115/44
= 2.61
Average Hours Early = Total Hrs Earliest/No. Of Jobs
= 18/5 Hrs
= 3.6 Hrs
Average Hours Past Time= Total Hrs Tardiness/No. Of Jobs
= 38/5 Hrs
= 7.6 Hrs
Average WIP Inventory= Actual Pickup Time/Highest Flow time
= 102/44
= 2.32
(II) Shortest Processing Time (SPT) rule is suitable if job flow time is critical.
(III) Shortest Processing Time (SPT) rule is suitable if WIP Inventory is critical.
Order according to Earliest Due Date Engine Block Time in (a) Processing Time (b) Total Flow time (a) + (b) Schduled Customer pickup time (Business Hrs from Now) Earliest Tardiness Ranger 0 8 8 10 -2 Explorer 8 6 14 12 2 Econoline 150 14 3 17 18 -1 Bronco 17 15 32 20 12 Thunderbird 32 12 44 22 22 Total 115 -3 36Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.