Mylab Operations Management With Pearson Etext -- Access Card -- For Operations Management: Sustainability And Supply Chain Management (13th Edition)
13th Edition
ISBN: 9780135225899
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 2 b
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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?
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
Chapter 15 Solutions
Mylab Operations Management With Pearson Etext -- Access Card -- For Operations Management: Sustainability And Supply Chain Management (13th 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. 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. 29PCh. 15 - Prob. 30PCh. 15 - Prob. 10PCh. 15 - Prob. 11PCh. 15 - Prob. 12PCh. 15 - Prob. 14PCh. 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. 1EDCh. 15 - Prob. 2.1VCCh. 15 - Prob. 2.2VCCh. 15 - Prob. 2.3VCCh. 15 - Prob. 2.4VC
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- Question: The system provides some useful insights regarding the sales order. Different departments use this information. For instance, the production process uses this information to forecast the expected sale for next month. The production clerk uses this to create an online production schedule. From this schedule, the system automatically prepares weekly online work orders to be used by the production department. The production supervisor assesses the work orders from his terminal and prepares the necessary paper based move tickets and materials requisitions. Then, the move tickets and two copies of the materials requisitions are distributed to each work centre. Later, work center employees submit the two copies of the materials requisitions to the warehouse in exchange for materials and sub-assemblies. If additional new materials are needed beyond the standard quantity, the supervisor issues additional materials requisitions. Work centre employees record their work hours on…arrow_forwardA 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.arrow_forwardQuestion: Courtesy Calls makes telephone calls for businesses and charities. A profit of $0.50 is made for each business call and $0.40 for each charity call. It takes 4 min (on average) to make a business call and 6 min (on average) to make a charity call. If there are 240 min of calling time to be distributed each day, how should that time be spent so that Courtesy Calls makes a maximum profit? What changes, if any, occur in the maximum profit and optimal production policy if they must make at least 12 business and 10 charity calls every day?arrow_forward
- 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 2 a Full explain this question and text typing work only thanksarrow_forward
- 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_forwardHow could you integrate output control intro a college classroom to maximize student learning?arrow_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 p .Full explain this question and text typing work only We should answer our question within 2 hours takes more time then we will reduce Rating Dont ignore this linearrow_forwardQuestion 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_forward
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