EBK OPERATIONS MANAGEMENT
EBK OPERATIONS MANAGEMENT
14th Edition
ISBN: 9781260718447
Author: Stevenson
Publisher: MCG COURSE
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Chapter 16, Problem 8P

The following table shows orders to be processed at a machine shop as of 8:00 a.m. Monday. The jobs have different operations they must go through. Processing times are in days. Jobs are listed in order of arrival.

a. Determine the processing sequence at the first work center using each of these rules: (1) FCFS, (2) S/O.

b. Compute the effectiveness of each rule using each of these measures: (1) average flow time, (2) average number of jobs at the work center.

Chapter 16, Problem 8P, The following table shows orders to be processed at a machine shop as of 8:00 a.m. Monday. The jobs

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The times required to complete each of eight jobs in a two-machine flow shop are shown in thetable that follows. Each job must follow the same sequence, beginning with machine A and moving to machine B.a. Determine a sequence that will minimize makespan time.b. Construct a chart of the resulting sequence, and find machine B’s idle time. c. For the sequence determined in part a, how much would machine B’s idle time be reduced bysplitting the last two jobs in half?TIME (hours)Job Machine A Machine Ba 16 5b 3 13c 9 6d 8 7e 2 14f 12 4g 18 14h 20 11
pls be quick !! The operations manager of an assembly and paint shop has five trucks to schedule for repair. He would like to minimize the throughput time (makespan) to complete all work on these cars. Each truck requires assembly prior to painting. The estimates of the times required to do the assembly and paint work on each are as follows: Truck Assembly (Hours) Paint (Hours) A 7 10 B 9 3 C 8 7 D 4 4 E 12 5 Use Johnson's rule to sequence these five jobs for minimum total duration. Show your step by step work in determining the job sequence and calculate the total duration of finishing assembly and painting operations on all the five trucks.
The following table shows orders to be processed at a machine shop as of 8:00 a.m. Monday. The jobs have different operations they must go through. Processing times are in days. Jobs are listed in order of arrival. Job Processing Time (Days) Due Date (Days) Remaining Number of Operations A 8 20 2 B 10 18 4 C 5 25 5 D 11 17 3 E 9 35 4 Click here for the Excel Data File a. Determine the processing sequence at the first work center using each of these rules: (1) First come, first served, (2) Slack per operation. (Hint: In case of a tie choose the jobs in alphabetical order.) b. Compute the effectiveness of each rule using each of these measures: (1) average completion time, (2) average number of jobs at the work center. (Round your answers to 2 decimal places.)

Chapter 16 Solutions

EBK OPERATIONS MANAGEMENT

Ch. 16 - Prob. 11DRQCh. 16 - What general trade-offs are involved in sequencing...Ch. 16 - Prob. 2TSCh. 16 - Prob. 3TSCh. 16 - One approach that can be effective in reducing the...Ch. 16 - Doctors and dentists offices frequently schedule...Ch. 16 - Prob. 3CTECh. 16 - Use the assignment method to determine the best...Ch. 16 - Rework Problem 1, treating the numbers in the...Ch. 16 - Assign trucks to delivery routes so that total...Ch. 16 - Develop an assignment plan that will minimize...Ch. 16 - Use the assignment method to obtain a plan that...Ch. 16 - The following table contains information...Ch. 16 - Using the information presented in the following...Ch. 16 - The following table shows orders to be processed...Ch. 16 - A wholesale grocery distribution center uses a...Ch. 16 - The times required to complete each of eight jobs...Ch. 16 - Prob. 11PCh. 16 - A shoe repair operation uses a two-step sequence...Ch. 16 - The following schedule was prepared by the...Ch. 16 - The production manager must determine the...Ch. 16 - A foreman has determined processing times at a...Ch. 16 - Given the information in the following table,...Ch. 16 - Given the following information on job times and...Ch. 16 - Prob. 18PCh. 16 - The following table contains order-dependent setup...Ch. 16 - The following table contains order-dependent setup...Ch. 16 - Prob. 21PCh. 16 - Given this information on planned and actual...Ch. 16 - Given the following data on inputs and outputs at...Ch. 16 - Determine the minimum number of workers needed,...Ch. 16 - Determine the minimum number of workers needed,...Ch. 16 - Determine the minimum number of workers needed,...Ch. 16 - Prob. 1CQ
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