Principles of Operations Management: Sustainability and Supply Chain Management (10th Edition)
10th Edition
ISBN: 9780134181981
Author: Jay Heizer, Barry Render, Chuck Munson
Publisher: PEARSON
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Chapter 15, Problem 5DQ
Summary Introduction
To determine: The advantages and disadvantages of Shortest Processing Time (SPT) rule.
Introduction: Shortest Processing Tine is the
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QUESTION #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 AM
Question 7
Station 1
Machine A
20 min/unit
Station 1
Machine B
20 min/unit
Station 2
12 min/unit
Station 3
8 min/unit
A three station work cell is illustrated in the image above. A unit needs to be processed at
either Machine A or Machine B for Station 1 (parallel lines, both lines doing the exact same
thing). The unit is then processed at Stations 2 and 3 before leaving the work cell. What is the
process time of this system measured in minutes/unit?
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
Principles of Operations Management: Sustainability and Supply Chain Management (10th Edition)
Ch. 15 - Prob. 1EDCh. 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. 9DQ
Ch. 15 - Prob. 10DQCh. 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 - Daniels Barber Shop at Newark Airport is open 7...Ch. 15 - Given the following demand for waiters and...Ch. 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 - Why is seniority important in scheduling servers?Ch. 15 - Prob. 2.4VC
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- Question 32 The processing times of four jobs are given as follows: Job Processing time (minutes) A 10 B 30 C 16 D 24 Assume the jobs arrived in alphabetical order of the job name and no other job arrives in the next 70 minutes. What is the average flow time in minutes if the jobs are processed in shortest processing time (SOP) order? Group of answer choices 166 41.5 38 20.5arrow_forwardQuestion 4: Six jobs waiting at a workstation will be processed in order, starting with the one with the shortest break time. In the table below, the time elapsed since the arrival of the works, the time remaining to the delivery and the processing time are given. According to this, create the work order and fill in the data in the relevant table.(fill in the second table in the photos)a) What is the average delay time with the generated order?b) How many hours is the average flow time?c) How many jobs will be delayed?d) How many jobs will not be delayed?arrow_forwardQuestion 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_forward
- How could you integrate output control intro a college classroom to maximize student learning?arrow_forward2arrow_forwardFinite 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).arrow_forward
- Question 12 Which of the following statements regarding PERT times is true? Pessimistic time estimate is an estimate of the minimum time an activity will require Optimistic time estimate is an estimate of the minimum time an activity will require Most likely time estimate is an estimate of the maximum time an activity will require Optimistic time estimate is an estimate of the maximum time an activity will requirearrow_forwardQuestion (13-15): A Car service station owns one washing machine that serves 3.5 cars every 45 minutes. Moreover, 2.5 customers arrive at the station every 40 minutes. Answer the following questions: 13. Determine the expected waiting time in the car service: D D 3.021 D 4.621 с 14. Determine the expected number of customers in the queue: 0.9031 C 1.0909 C 3.872 B 0.3001 B 0.875 B 3.287 15. Determine the probability that customers are waiting more than 45 minutes in the queue: A 0.4041 A 1.256 A 4.099 0.5981arrow_forwardWhich are the major functions of shop-floor control?arrow_forward
- Question 3 Little’s LawA bank is processing job applications. Typical processing time for one application is 4 weeks. The bank can process 5 applications per week. The department is trying to improve efficiency by reduce the processing time to 2 weeks. What is the reduction of applications under review after the efficiency improvement?arrow_forwardQuestion 22 of 50 New customers often complain about the number of forms they are asked to complete. What is the best way to prime customers to make the paperwork more acceptable? "I understand. But these forms are required by law, so unfortunately we don't have any control over them." "I hear you, a lot of customers are frustrated having to complete all these forms. Doing so now will ensure your future appointments go much faster." "I know it's a lot to fill out. Don't worry if you get confused by all these forms, I'll check everything for mistakes." "I hear you, a lot of customers are frustrated by having to complete all these forms. You'll get through them."arrow_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_forward
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