EBK OPERATIONS MANAGEMENT
14th Edition
ISBN: 9781260718447
Author: Stevenson
Publisher: MCG COURSE
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 6, Problem 7P
For the given set of tasks, do the following:
a. Develop the precedence diagram
b. Determine the minimum cycle time and then calculate the cycle time for a desired output of 500 units in a seven-hour day. Why might a manager use a cycle tune of 50 seconds?
c. Determine the minimum number of workstations for output of 500 units per day
d. Balance the line using the greatest positional weight heuristic. Break ties with the most following tasks heuristic. Use a cycle tune of 50 seconds.
e. Calculate the percentage idle time for the line.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
For the given set of tasks, do the following:a. Develop the precedence diagram.b. Determine the minimum cycle time and then calculate the cycle time for a desired output of 500 units in a seven-hour day. Why might a manager use a cycle time of 50 seconds?c. Determine the minimum number of workstations for output of 500 units per day.
Balance the line using the greatest positional weight heuristic. Break ties with the most following tasks heuristic. Use a cycle time of 50 seconds.e. Calculate the percentage idle time for the line.TaskTask Time(seconds)ImmediatePredecessorA 45 —B 11 AC 9 BD 50 —E 26 DF 11 EG 12 CH 10 CI 9 F, G, HJ 10 I193
The Sail-Sea is a boat manufacturer. The assembly location is available for production of 60 boats for240 minutes per day.Given the information in the table,a) Draw the precedence diagramb) Fins the minimum number of workstations needed to produce the required daily demand.
task
performance time(min)
task must follow task listed below
a
1
-
b
1
a
c
2
a
d
1
c
e
3
c
f
1
c
g
d, e, f
h
2
b
i
1
g, h
As part of a major plant renovation project, the industrial engineering department has been askedto balance a revised assembly operation to achieve an output of 240 units per eight-hour day. Tasktimes and precedence relationships are as follows: [ please refer the attachment for addl details ]
Do each of the following:a. Draw the precedence diagram.b. Determine the minimum cycle time, the maximum cycle time, and the calculated cycle time.c. Determine the minimum number of stations needed.d. Assign tasks to workstations on the basis of most following tasks. Use shortest processing timeas a tiebreaker. If ties still exist, assume indifference in choice.e. Compute the percentage of idle time for the assignment in part d.
Chapter 6 Solutions
EBK OPERATIONS MANAGEMENT
Ch. 6.2 - MORTON SALT Introduction Morton Salt is a...Ch. 6.2 - MORTON SALT Introduction Morton Salt is a...Ch. 6.2 - MORTON SALT Introduction Morton Salt is a...Ch. 6.2 - MORTON SALT Introduction Morton Salt is a...Ch. 6.2 - MORTON SALT Introduction Morton Salt is a...Ch. 6.2 - MORTON SALT Introduction Morton Salt is a...Ch. 6.3 - FOXCONN SHIFTS ITS FOCUS TO AUTOMATION Foxconn...Ch. 6.3 - FOXCONN SHIFTS ITS FOCUS TO AUTOMATION Foxconn...Ch. 6.3 - Prob. 2.1RQCh. 6.3 - Prob. 2.2RQ
Ch. 6.3 - Prob. 3.1RQCh. 6.3 - Prob. 3.2RQCh. 6.5 - Prob. 1.1RQCh. 6.5 - Prob. 1.2RQCh. 6 - Explain the importance of process selection in...Ch. 6 - Briefly describe the five process types, and...Ch. 6 - Prob. 3DRQCh. 6 - Briefly describe computer-assisted approaches to...Ch. 6 - What is a flexible manufacturing system, and under...Ch. 6 - Prob. 6DRQCh. 6 - Why might the choice of equipment that provides...Ch. 6 - Prob. 8DRQCh. 6 - Prob. 9DRQCh. 6 - Briefly describe the two main layout types.Ch. 6 - Prob. 11DRQCh. 6 - Prob. 12DRQCh. 6 - What is the goal of Line balancing? What happens...Ch. 6 - Why are routing and scheduling continual problems...Ch. 6 - Prob. 15DRQCh. 6 - Prob. 16DRQCh. 6 - The City Transportation Planning Committee must...Ch. 6 - Identify the fixed-path and variable-path...Ch. 6 - Prob. 19DRQCh. 6 - Prob. 20DRQCh. 6 - Prob. 21DRQCh. 6 - Prob. 22DRQCh. 6 - What is cellular manufacturing? What are its main...Ch. 6 - Prob. 24DRQCh. 6 - Prob. 25DRQCh. 6 - Prob. 1TSCh. 6 - What trade-offs are involved when deciding how...Ch. 6 - Who needs to be involved in process selection?Ch. 6 - Prob. 4TSCh. 6 - Prob. 5TSCh. 6 - Prob. 1CTECh. 6 - Prob. 2CTECh. 6 - What are the risks of automating a production...Ch. 6 - Consider an assembly line such as the burrito...Ch. 6 - Prob. 1PCh. 6 - A manager wants to assign tasks to workstations as...Ch. 6 - A manager wants to assign tasks to workstations as...Ch. 6 - A producer of inkjet printer is planning to add a...Ch. 6 - As part of a major plant renovation project, the...Ch. 6 - Twelve tasks, with times and precedence...Ch. 6 - For the given set of tasks, do the following: a....Ch. 6 - A shop works a 400-minute day. The manager of the...Ch. 6 - Arrange six departments into a 2 3 grid so that...Ch. 6 - Using the information given in the preceding...Ch. 6 - Using the information in the following grid,...Ch. 6 - Arrange the eight departments shown in the...Ch. 6 - Arrange the departments so they satisfy the...Ch. 6 - a. Determine the placement of departments fix a...Ch. 6 - Prob. 15PCh. 6 - Develop a process layout that will minimize the...Ch. 6 - Prob. 17PCh. 6 - Rebalance the assembly line in Problem 7. This...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.Similar questions
- You are alone at home and have to prepare a bread sandwich for yourself. The following preparation activities and time taken are given in the table below: Task Description Predecessor Time (Minutes) A Purchase of bread - 20 B Take cheese and apply on bread A 5 C Get onions from freezer A 1 D Fry onions with pepper B,C 6 E Purchase sauce for bread - 15 F Toast bread B,C 4 G Assemble bread and fried onions F 2 H Arrange in plat G 1 Determine: a. While purchasing sauce, you met a friend and spoke to him for 6 minutes. Did this cause any delay in the preparation?arrow_forwardanswer the question briefly. (Engineering management) David Aquino, engineering director, started out the day uptight. His young child had the flu the night before, and he had been up all night to help. Upon arrival at his office, David had to make urgent phone calls to approve a two-week overtime work plan due to a plant fire the night before and to plan for a product committee meeting the next day to counter environmental concerns about a wastewater treatment plant.Then he spent 30 minutes reviewing the qualifications of new candidates anddecided on one. He asked for salary information and wanted to examine the offer before it was sent. He asked for further justification for the budget requested by industrial engineering for a minicomputer. Without reading it, he approved the research proposal from material engineering. He rejected an invitation to speak at a regional meeting of the Philippine Society of Mechanical Engineers by giving an untrue reason.David made a note for the United…arrow_forwardHarness International, a global wiring harness company, allows each customer to access its engineering drawings on the company's extranet, speeding up the design process for every project. Harness would consider this to be a(n) ________. A. opportunity B. resource C. capability D. competitive advantagearrow_forward
- Assume you are the owner of a construction firm with its headquarters in New Delhi. Two customers from Chennai and Himachal Pradesh have approached you for the construction of an energy-efficient structure in their respective locations. What strategy would you use to complete the projects? Additionally, create a flow chart for both projects to illustrate your design strategy and execution methods. Hint: The design must include bioclimatic architecture, a high-performance building envelope, and enough ventilation.arrow_forwardAnswer the question (Engineering management) David Aquino, engineering director, started out the day uptight. His young child had the flu the night before, and he had been up all night to help. Upon arrival at his office, David had to make urgent phone calls to approve a two-week overtime work plan due to a plant fire the night before and to plan for a product committee meeting the next day to counter environmental concerns about a wastewater treatment plant. Then he spent 30 minutes reviewing the qualifications of new candidates and decided on one. He asked for salary information and wanted to examine the offer before it was sent. He asked for further justification for the budget requested by industrial engineering for a minicomputer. Without reading it, he approved the research proposal from material engineering. He rejected an invitation to speak at a regional meeting of the Philippine Society of Mechanical Engineers by giving an untrue reason. David made a note for the United…arrow_forwardA manager wants to assign tasks to workstations as efficiently as possible and achieve an hourlyoutput of four units. The department uses a working time of 56 minutes per hour. Assign the tasksshown in the accompanying precedence diagram (times are in minutes) to workstations using thefollowing rules:a. In order of most following tasks. Tiebreaker: greatest positional weight.b. In order of greatest positional weight. Tiebreaker: most following tasks.c. What is the efficiency?arrow_forward
- A dress-making operation is being designed as an assemblyline. Table 10-22 shows the tasks that need to be performed, theirtask times, and preceding tasks. If the goal is to produce 30 dressesper hour, answer the questions that follow the table. (a) Compute the cycle time.(b) Which task is the bottleneck?(c) What is the maximum output for this line?(d) Compute the theoretical minimum number of stations.(e) Assign work elements to stations, using the longest tasktime rule.(f) Compute the effi ciency and balance delay of yourassignment.arrow_forwardSince Jack believes that Work Center 3 is his bottleneck, hehas asked you to do the following:(a) Calculate the percentage of planned output needed tocomplete the planned inputs (planned input 1 backlog/planned output) at Work Center 3.(b) Calculate the percentage of planned input that actuallyhappened (actual input 1 backlog/planned input 1backlog).(c) Calculate the percentage of available output that wasactually accomplished (actual output/planned output) atWork Center 3.(d) Given your results, do you believe that Jack is correct inassuming that Work Center 3 is his bottleneck? Justifyyour answer.arrow_forwardSYSTEM ANALYSIS AND DESIGN BASED ON THE TABLE GIVEN 1. To draw a Gantt chart, identify symbols that should be included to represent: a. summary task b. milestone c. critical task 2. if activity C is lecture, activity B is exam and activity D is teachning, produce a description of these activities according to: a. finish to start task pattern b. start to start task patternarrow_forward
- Classify each of the following as nominal, ordinal, interval, or ratio data and explain. a. the time required to produce each car on an assembly line. b. the number of liters of water a family drinks in a month. c. the ranking of four student projects in your class after they have been designated as excellent, good, satisfactory, and poor. d. the telephone area code of clients in India. e. Explain the four groups of data in detail.arrow_forwardJamison Day Consul tants has been entrusted with thetask of evaluating a business plan that has been divided into foursections- marketing, finance, operations, and human resources.Chris, Steve, Juana, and Rebecca form the evaluation team. Each of them has expertise in a certain field and tends to finish thatsection faster. The estimated times taken by each team memberfor each section have been outlined in the following table. Furtherinformation states that each of these individuals is paid $60/hour.a) Assign each member to a different section such that JamisonConsultants's overall cost is minimized.b) What is the total cost of these assignments?arrow_forward10. The following precedence network is used for assembling a product. You have been asked to achieve an output of 240 units per eight-hour day. All times in this network are in minutes. Balance the line using the following rule: assign tasks to workstations on the basis of most following tasks (Rule 1). Use greatest positional weight (Rule 2) as a tiebreaker. What is the first activity assigned to workstation 3? b c d f e aarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,Operations ManagementOperations ManagementISBN:9781259667473Author:William J StevensonPublisher:McGraw-Hill EducationOperations and Supply Chain Management (Mcgraw-hi...Operations ManagementISBN:9781259666100Author:F. Robert Jacobs, Richard B ChasePublisher:McGraw-Hill Education
- Purchasing and Supply Chain ManagementOperations ManagementISBN:9781285869681Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. PattersonPublisher:Cengage LearningProduction and Operations Analysis, Seventh Editi...Operations ManagementISBN:9781478623069Author:Steven Nahmias, Tava Lennon OlsenPublisher:Waveland Press, Inc.
Practical Management Science
Operations Management
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:Cengage,
Operations Management
Operations Management
ISBN:9781259667473
Author:William J Stevenson
Publisher:McGraw-Hill Education
Operations and Supply Chain Management (Mcgraw-hi...
Operations Management
ISBN:9781259666100
Author:F. Robert Jacobs, Richard B Chase
Publisher:McGraw-Hill Education
Purchasing and Supply Chain Management
Operations Management
ISBN:9781285869681
Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson
Publisher:Cengage Learning
Production and Operations Analysis, Seventh Editi...
Operations Management
ISBN:9781478623069
Author:Steven Nahmias, Tava Lennon Olsen
Publisher:Waveland Press, Inc.
Inventory Management | Concepts, Examples and Solved Problems; Author: Dr. Bharatendra Rai;https://www.youtube.com/watch?v=2n9NLZTIlz8;License: Standard YouTube License, CC-BY