Operations Management
11th Edition
ISBN: 9780132921145
Author: Jay Heizer
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 9, Problem 14P
The Action Toy Company has decided to manufacture a new train set, the production of which is broken into six steps The demand for the train is 4,800 units per 40-hour workweek:
| TASK | PERFORMANCE TIME (SEC) | PREDECESSORS | |||
| A | 20 | None | |||
| B | 30 | A | |||
| C | 15 | A | |||
| D | 15 | A | |||
| E | 10 | B, C | |||
| F | 30 | D, E | |||
- a. Draw a precedence diagram of this operation.
- b. Given the demand, what is the cycle time for this operation?
- c. What is the theoretical minimum number of workstations?
- d. Assign tasks to workstations
- e. How much total idle time is present each cycle?
- f. What is the efficiency of the assembly line with five stations? With six stations?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
The three-station work cell illustrated in the figure below has a product that must go through one of the two
machines at station 1 (they are parallel) before proceeding to station 2.
Q
Capacity: 30 units/hr
Station 1
Machine A
Station 1
Machine B
Capacity: 30 units/hr
Station 2
Capacity:
10 units/hr
a) The bottleneck time of the system is
b) What is the bottleneck station of this work cell
c) What is the throughput time?
Station 3
Capacity:
6 units/hr
minutes per unit (enter your response as a whole number).
Rock View Restaurant is a new fast food restaurant chain. The Operations Manager has dividedits normal drive-through service process into the following tasks:Tasks Description Task Time(InSeconds)PredecessorsA Take order 25 NoneB Receive payment 20 AC Gather drinks 35 AD Gather food 32 AE Put food etc. in bag 25 C,DF Give food to customer 10 B,E
Currently, Rock View Restaurant has a single window with one person who takes the order, gather the food, collects the money and gives the food to the customer. This takes an average of 147 seconds per customer so only 25.5 cars can be served.…
Rock View Restaurant is a new fast food restaurant chain. The Operations Manager has dividedits normal drive-through service process into the following tasks:Tasks Description Task Time(InSeconds)PredecessorsA Take order 25 NoneB Receive payment 20 AC Gather drinks 35 AD Gather food 32 AE Put food etc. in bag 25 C,DF Give food to customer 10 B,E
Currently, Rock View Restaurant has a single window with one person who takes the order, gather the food, collects the money and gives the food to the customer. This takes an average of 147 seconds per customer so only 25.5 cars can be served.…
Chapter 9 Solutions
Operations Management
Ch. 9 - Prob. 1DQCh. 9 - Prob. 2DQCh. 9 - Prob. 3DQCh. 9 - Prob. 4DQCh. 9 - Prob. 5DQCh. 9 - Prob. 6DQCh. 9 - Prob. 7DQCh. 9 - Prob. 8DQCh. 9 - What are the requirements for a focused work...Ch. 9 - Prob. 10DQ
Ch. 9 - Prob. 11DQCh. 9 - Prob. 12DQCh. 9 - Prob. 13DQCh. 9 - Prob. 14DQCh. 9 - Prob. 15DQCh. 9 - Prob. 16DQCh. 9 - Explain the concept of cross-docking.Ch. 9 - What is a heuristic? Name several that can be used...Ch. 9 - Prob. 1PCh. 9 - Prob. 2PCh. 9 - Three departmentsmilling (M), drilling (D), and...Ch. 9 - Roy Creasey Enterprises, a machine shop, is...Ch. 9 - Prob. 5PCh. 9 - Prob. 6PCh. 9 - Prob. 7PCh. 9 - Prob. 8PCh. 9 - Six processes are to be laid out in six areas...Ch. 9 - After an extensive product analysis using group...Ch. 9 - Stanford Rosenberg Computing wants to establish an...Ch. 9 - Illinois Furniture, Inc., produces all types of...Ch. 9 - Sue Helms Appliances wants to establish an...Ch. 9 - The Action Toy Company has decided to manufacture...Ch. 9 - The following table details the tasks required for...Ch. 9 - Tailwind, Inc., produces high-quality but...Ch. 9 - Prob. 17PCh. 9 - Because of the expected high demand for Mach 10,...Ch. 9 - Prob. 19PCh. 9 - Suppose production requirements in Solved Problem...Ch. 9 - The preinduction physical examination given by the...Ch. 9 - Samuel Smith's company wants to establish an...Ch. 9 - As the Cottrell Bicycle Co. of St. Louis completes...Ch. 9 - Prob. 1CSCh. 9 - Prob. 2CSCh. 9 - Prob. 3CSCh. 9 - Prob. 4CSCh. 9 - Prob. 1.1VCCh. 9 - Prob. 1.2VCCh. 9 - Prob. 1.3VCCh. 9 - Prob. 1.4VCCh. 9 - Prob. 1.5VCCh. 9 - Prob. 2.1VCCh. 9 - Prob. 2.2VCCh. 9 - Prob. 2.3VC
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
- Employees Layoffs at the University Medical Center The University Medical Center is medium-sized, 300-bed capacity hospital at Dasmarinas Cavites. The facilities have grown gradually over the years and are now the 2nd largest in the town of Dasmarinas. It is entirely nonunion and has never experienced an employee layoff since its inception. Sister Veronica Cornista, the Chief Executive Officer of the hospital for 8 years presented a rather bleak financial of the BOD. This according to her is the result of the declining occupancy rate which has affected the hospital’s revenues to such an extent that it ran a deficit for the first time last 1998. Such declines have not been unusual for this industry because of increasing competition. So far, the only response to these changes has been tightening of requirements for equipment or supply purchases. The projected deficit for the coming year is around 1,300,000 unless some additional revenues were identified or some additional savings…arrow_forwardPvnarrow_forwardSue Helms Appliances wants to establish an assem-bly line to manufacture its new product, the Micro Popcorn Popper. The goal is to produce five poppers per hour. The tasks,task times, and immediate predecessors for producing one MicroPopcorn Popper are as follows:TASK TIME (min) IMMEDIATEPREDECESSORSA 10 —B 12 AC 8 A, BD 6 B, CE 6 CF 6 D, Ea) What is the theoretical minimum for the smallest number ofworkstations that Helms can achieve in this assembly line?b) Graph the assembly line, and assign workers to workstations.Can you assign them with the theoretical minimum?c) What is the efficiency of your assignment?arrow_forward
- What is the bottleneck of the process is which worker ?arrow_forwardQRS Corp is designing a product layout for a new product. They plan to use this production line 9 hours a day in order to meet forecasted demand of 600 units per day. Calculate the cycle time in seconds.. Calculate the minimum number of work stations if the sum of the task times is 170 secs Edit Format Table 12pt v Paragraph v BI UAV MacBook Air 80 esc F3 F5 F6 F7 FB F9 F1 F2 F4 @ # $ & 2 3 7 8 W R IIIY この COarrow_forwardplease answer all 4 parts within 30 minutes.arrow_forward
- To meet holiday demand, Alex's Pie Shop requires a production line that is capable of producing 50 pecan pies per week, while operating only 40 hours per week. There are only four steps required to produce a single pecan pie with respective processing times of 5 minutes, 5 minutes, 45 minutes, and 15 minutes. a. What should be the line's cycle time? b. What is the smallest number of workstations Alex could hope for in designing the line considering this cycle time? c. Suppose that Alex finds a solution that requires only four stations. What would be the efficiency of this line?arrow_forwardThe Sun River beverage company is a regional producer of teas, exotic juices, and energy drinks. With an interest in healthier lifestyles, there has been an increase in demand for its sugar-free formulation. The final packing operation requires 13 tasks. Sun River bottles its sugar-free product 5 hours a day, 5 days a week. Each week, there is a demand for 3,000 bottles of this product. TASK TIME (MINUTES) PRECEDING TASK 1 0.1 — 2 0.1 1 3 0.1 2 4 0.2 2 5 0.1 2 6 0.2 3, 4, 5 7 0.1 1 8 0.1 7 9 0.2 8 10 0.1 9 11 0.2 6 12 0.2 10, 11 13 0.1 12 Using the following data, solve the assembly-line balancing problem and calculate the efficiency of your solution. Use the longest task time for your decision criteria. Note: Round your answer to the nearest whole percent.arrow_forwardThe information (in minutes) shown in Table, pertains to a package filling operation at the Black Sheep Wool Company. When three bags are full, the third work element involves transporting the three bags down the line. What is the normal cycle time for this operation?arrow_forward
- A production process at Kenneth Day Manufacturing is shown in Figure S7.9. The drilling operation occurs separately from, and simultaneously with, sawing and sanding, which are independent and sequential operations. A product needs to go through only one of the three assembly operations (the operations are in parallel).a) Which operation is the bottleneck?b) What is the bottleneck time?c) What is the throughput time of the overall system?d) If the firm operates 8 hours per day, 20 days per month, whatis the monthly capacity of the manufacturing process?arrow_forward0.5 A 0.7 B 5 Station 1 2 3 0.5 Tasks B,A,C,D E,F G,H,I Total 0.1 D 0.6 F The cycle time is determined to be 2.0 minutes. How would the line be balanced by choosing the assignable task having the longest task time first? Fill in the table below. If your answer is zero, enter "0". Round your answers to one decimal place. Total Time Idle Time G 0.4 E 1.1 H 0.2 What is the assembly-line efficiency? Round your answer to one decimal place. % T 0.1arrow_forwardRock View Restaurant is a new fast-food restaurant chain. The Operations Manager has dividedits normal drive-through service process into the following tasks: Task Description Task time in seconds Predecessors A Take Order 25 none B Received Payment 20 A C Gather Drinks 35 A D Gather Food 32 A E Put food etc. in bag 25 C,D F Give food to customer 10 B,E Currently, Rock View Restaurant has a single window with one person who takes the order,gather the food, collects the money and gives the food to the customer. This takes an average of147 seconds per customer so only 25.5 cars can be served. Rock View Restaurant wants toincrease its drive-through capacity to 60 cars per hour by forming a multi-window line. i. Draw the precedence diagram to represent the process at Rock View Restaurant.ii. Calculate the cycle time in seconds.iii. Calculate the minimum number of windows that Rock View Restaurant will need toserve 60 cars per hour.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,
Practical Management Science
Operations Management
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:Cengage,
Process selection and facility layout; Author: Dr. Bharatendra Rai;https://www.youtube.com/watch?v=wjxS79880MM;License: Standard YouTube License, CC-BY