Operations Management: Sustainability and Supply Chain Management (12th Edition)
12th Edition
ISBN: 9780134130422
Author: Jay Heizer, Barry Render, Chuck Munson
Publisher: PEARSON
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Question
Chapter 15, Problem 21P
Summary Introduction
To determine: Theschedule jobs using critical ratio.
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Students have asked these similar questions
Finite capacity scheduling
Question 20 options:
schedules jobs through a number of work centers, each with one or more machines.
All of these choices are correct.
is an extension of the theory of constraints.
requires that jobs are scheduled whole (cannot be split).
Question 1
Four floral arranging jobs are to be carried out across three stations: A (Arrange), B (Bag), C (crop) shown. The station sequences and job times in minutes are shown below, along with the due dates for each job. Using an "earliest due date" job dispatching priority rule, which, if any, of the jobs in will be late? Tip: create a Gantt chart schedule before answering Questions 4 & 5.
a. Jobs 2 & 3
b. Jobs 3 & 4
c. Job 3
d. Job 4
e. None of the jobs will be late
A Maving to another question will sae this response.
Question 24
Copy of
Table 10.10
A work center has the following five jobs waiting to be processed (all times are shown in days):
Job
Arrival
Processing
Due
12
29
16
11
31
13
12
25
1
8
Use the infomation in Table 10.10. What is the average flow time using the FCFS rule (Answer to 2 decimal places)? (CSLOS 1,2,3)
Moving to another question will save this response.
Chapter 15 Solutions
Operations Management: Sustainability and Supply Chain Management (12th Edition)
Ch. 15 - Prob. 1DQCh. 15 - Prob. 2DQCh. 15 - Prob. 3DQCh. 15 - Prob. 4DQCh. 15 - Prob. 5DQCh. 15 - Prob. 6DQCh. 15 - Prob. 7DQCh. 15 - Prob. 8DQCh. 15 - Prob. 9DQCh. 15 - Prob. 10DQ
Ch. 15 - Prob. 11DQCh. 15 - Prob. 12DQCh. 15 - Prob. 13DQCh. 15 - Prob. 1PCh. 15 - Prob. 2PCh. 15 - Prob. 3PCh. 15 - Prob. 4PCh. 15 - Prob. 5PCh. 15 - Prob. 6PCh. 15 - Prob. 7PCh. 15 - Prob. 8PCh. 15 - Prob. 9PCh. 15 - Prob. 10PCh. 15 - Prob. 15PCh. 15 - Prob. 16PCh. 15 - Prob. 17PCh. 15 - Prob. 18PCh. 15 - Prob. 19PCh. 15 - Prob. 20PCh. 15 - Prob. 21PCh. 15 - Prob. 22PCh. 15 - Prob. 23PCh. 15 - Prob. 26PCh. 15 - Prob. 27PCh. 15 - Prob. 1CSCh. 15 - Prob. 2CSCh. 15 - Prob. 3CSCh. 15 - Prob. 4CSCh. 15 - Prob. 1.1VCCh. 15 - Prob. 1.2VCCh. 15 - Prob. 1.3VCCh. 15 - Prob. 2.1VCCh. 15 - Prob. 2.2VCCh. 15 - Prob. 2.3VCCh. 15 - Prob. 2.4VC
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- Question 34 Consider the processing times and priorities for four jobs: Job Processing time (minutes) Weight/Priority (cost per minute) A 10 6 B 2 1 C 50 2 D 16 10 Assume the weighted shortest processing time (WSPT) rule is used. Which job should be processed third? Group of answer choices A B C Darrow_forwardQuestion four Three jobs are to be scheduled on two machines A and B. Assume that the jobs are processed in the sequence A-B (A has to finish the job before B can continue the job). The processing times are: Job A 1 4 2 7 7 3 3 Draw a Gantt chart that shows the schedule corresponding to the sequence 1-2-3 of the jobs.arrow_forwardQuestion fourThree jobs are to be scheduled on two machines A and B. Assume that the jobs are processed in the sequence A-B (A has to finish the job before B can continue the job). The processing times are: Job A B1 5 42 7 73 3 5Draw a Gantt chart that shows the schedule corresponding to the sequence 1-2-3 of the jobs.arrow_forward
- Determine if FCFS, SLACK or SPT are better options for sequencing work through the shoparrow_forwardQuestion one: Suppose a radiology department uses FCFS to determine how to sequence patient x-rays. Assuming these data are representative, compare between FCFS and other scheduling rules should the radiology department be using and why Processing Time (Minutes) Due Time (Minutes from Now) Patient A 35 140 B 15 180 35 360 D 25 290 E 30 420 F 25 20 G 35 180 H 30 290 20 110 K 25 150 L 15 270 M 30 390 20 220 20 400 P 10 330 Q 10 80 R 15 230 20 370arrow_forwardQuestion Three Processing times (including setup times), and due dates for five jobs waiting to be processed at a work center are given in the following table. By Using the SPT rule determine the following: The sequence of jobs The average flow time The average job tardiness The average number of jobs at the work center Job Processing Time (hours) Hour Due A 17 15 B 10 25 C 5 20 D 7 32 E 11 38arrow_forward
- Question 35 Consider the processing times and due dates of the following jobs: Job Processing time (days) Due date (days) 1 3 29 2 19 25 3 24 40 4 8 20 What is the average lateness if the earliest due date (EDD) is used to sequence the jobs? Group of answer choices 0.75 1.25 4.25 5.67arrow_forwardQ. 3 What is the total makespan from Question 1? Question 1: Four floral arranging jobs are to be carried out across three stations: A (Arrange), B (Bag), C (crop) shown. The station sequences and job times in minutes are shown below, along with the due dates for each job. Using an "earliest due date" job dispatching priority rule, which, if any, of the jobs in will be late? Answer was Job 4 Group of answer choices a. 100 b. 130 c. 150 d. 170 e. 200arrow_forward2arrow_forward
- Question one: Suppose a radiology department uses FCFS to determine how to sequence patient x-rays. Assuming these data are representative, compare between FCFS and other scheduling rules should the radiology department be using and why Processing Time (Minutes) Due Time (Minutes from Now) Patient A 35 140 B 180 15 35 360 25 290 E 30 420 25 20 G 35 80 30 290 20 110 K 25 15 150 270 M 30 390 20 220 20 400 10 330 10 80 R 15 230 20 370 当 五犯 LEzlolalolclnarrow_forwardQuestion 1: the following table contains information concerning four jobs that are awaiting processing at a work center. Job Time Due Date Job A (Days) 15 (Days) 21 7 15 16 10 17 a. Sequence the jobs using (1) First come, first served, (2) Shortest processing time, (3) Earliest due date, and (4) Critical ratio. ASsume the list is by order of arrival. b. For each of the methods in part a, determine (1) the average job flow time, (2) the average tardiness, and (3) the average number of jobs at the work center. c. Is one method superior to the others?arrow_forwardQUESTION #4 Four delivery trucks are in a queue at a Tool Company with only one service bay. The trucks are identified by the sequence in which they arrived at the Company. Assume the time is 10:00 a.m. The table shows the times necessary to unload each vehicle and the periods when the commodities they contain are expected in the factory. Determine the schedules that result for each of the rules SPE, CR EDD, and FSFC. In each case compute the average tardiness, the number of tardy jobs, and mean flow time. Truck 1 2 3 4 5 Unloading Time (minutes) 23 16 39 12 30 Time Material is Due 10:15 AM 10:40 AM 10:55 AM 10:30 AM 10:40 AMarrow_forward
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