Questions and Answers of Operations Management 6th

Flextrola, Inc., an electronics system integrator, is developing a new product. Solectrics can produce a key component for this product. Solectrics sells this component to Flextrola for $72 per unit
A manufacturing company producing medical devices reported $60,000,000 in sales over the last year. At the end of the same year, the company had $20,000,000 worth of inventory of ready-to-ship
A large catalog retailer of fashion apparel reported $100,000,000 in revenues over the last year. On average, over the same year, the company had $5,000,000 worth of inventory in its
LaVilla is a village in the Italian Alps. Given its enormous popularity among Swiss, German, Austrian, and Italian skiers, all of its beds are always booked in the winter season and there are, on
The following table shows financial data for Costco Wholesale and Walmart, two major U.S. retailers.Assume that both companies have an average annual holding cost rate of 30 percent (i.e., it costs
The following figures are taken from the financial statements of McDonald’s and Wendy’s.Figures are in million dollars.a. What were McDonald’s inventory turns in this year? What were Wendy’s
The following provides financial information for Kroger (in million $):What were Kroger’s inventory turns in this year? Inventory Revenue Cost of goods sold Kroger $6,244 $ 95,751 $76,858
Consider a process consisting of three resources:What is the bottleneck? What is the process capacity? What is the flow rate if demand is eight units per hour? What is the utilization of each
Consider the following two-step process:Step A has a processing time of 1 minute per unit, but no setup is required. Step B has a processing time of 0.1 minute per unit, but a setup time of 9 minutes
Consider the following batch-flow process consisting of three process steps performed by three machines:Work is processed in batches at each step. Before a batch is processed at step 1, the machine
John is a newly minted quality engineer at MakeStuff Inc. His boss, intending to promote higher quality in the company, tells him to increase the process capability index of their main product. John
A company making tires for bikes is concerned about the exact width of their cyclocross tires. The company has a lower specification limit of 22.8 mm and an upper specification limit of 23.2 mm. The
Once the raw materials are collected, a single flow unit manufacturing process comprises three sequential steps:Step 1 consumes large amounts of an expensive paint Step 2 is the bottleneck Step 3 has
Consider a worker-paced line with three process steps, each of which is staffed with one worker.The sequence of the three steps does not matter for the completion of the product. Currently, the three
Describe the conditions under which MRP is most appropriate.
Describe the inputs, outputs, and nature of MRP processing.
Explain how requirements in a master production schedule are translated into material requirements for lower-level items.
Discuss the benefits and requirements of MRP.
Describe some of the difficulties users have encountered with MRP.
Describe MRP II and its benefits.
Explain how an MRP system is useful in capacity requirements planning.
Describe ERP, what it provides, and its hidden costs.
Explain the terms lean operations and JIT.
Describe the main characteristics of lean systems.
List the five principles of how lean systems function.
List some of the benefits and some of the risks of lean operation.
Describe the Toyota Production System (TPS).
List the three goals of a lean system and explain the importance of each.
List the eight wastes according to lean philosophy.
Identify and briefly discuss the four building blocks of a lean production system.
Describe key lean improvement tools.
Outline considerations for successful conversion from a traditional system to a lean system.
Describe some of the obstacles to lean success.
Determine the number of containers needed for a workstation that uses 100 parts per hour if the time for a container to complete a cycle (move, wait, empty, return, fill) is 90 minutes and a standard
Determine the number of cycles per day and the production quantity per cycle for this set of products. The department operates five days a week. Assume the sequence A-B-C-D will be used. Product A B
Explain the terms supply chain and logistics.
List and briefly explain current trends in supply chain management.
Outline the benefits and risks related to outsourcing.
Explain what the main supply chain risks are and what businesses can do to minimize those risks.
Describe some of the complexities related to global supply chains.
Briefly describe ethical issues in supply chains and the key steps companies can take to avoid ethical problems.
Describe the three concerns of small businesses related to the supply chain and suggest ways to manage those concerns.
List several strategic, tactical, and operational responsibilities related to managing the supply chain.
Discuss procurement in terms of the purchasing interfaces, the purchasing cycle, ethics, and centralized versus decentralized decision making.
Briefly describe the key aspects of supplier management.
Discuss the logistics aspects of supply chain management, including RFID technology.
Discuss the issues involved in managing returns.
Describe some of the challenges in creating an effective supply chain and some of the trade-offs involved.
What are some of the advantages of e-business?
Explain the benefit of cross-docking.
Explain what scheduling involves and the importance of good scheduling.
Compare product and service scheduling hierarchies.
Describe scheduling needs in high-volume systems.
Describe scheduling needs in intermediate-volume systems.
Describe scheduling needs in job shops.
Use and interpret Gantt charts.
Use the assignment method for loading.
Give examples of commonly used priority rules.
Discuss the theory of constraints and that approach to scheduling.
Summarize some of the unique problems encountered in service systems, and describe some of the approaches used for scheduling service systems.
Job times (including processing and setup) are shown in the following table for five jobs waiting to be processed at a work center.Determine the processing sequence that would result from each of
Using the following information, determine an order processing sequence using the S/O priority rule. Order A ABCD B D Processing Time Remaining (days) 20 11 10 16 Due Date (days) 30 18 6 23 Number of
Describe the project life cycle.
Discuss the behavioral aspects of projects in terms of project personnel and the project manager.
Name the six key decisions in project management.
Explain the nature and importance of a work breakdown structure in project management.
Construct simple network diagrams.
Analyze networks with deterministic times.
Analyze networks with probabilistic times.
Describe activity “crashing” and solve typical problems.
Discuss the advantages of using PERT and potential sources of error.
What imbalance does the existence of a waiting line reveal?
What causes waiting lines to form, and why is it impossible to eliminate them completely?
What metrics are used to help managers analyze waiting lines?
What very important lesson does the constant service time model provide for managers?
One of the features of a new machine shop will be a well-stocked tool crib. The manager of the shop must decide on the number of attendants needed to staff the crib. Attendants will receive $20.
The following is a list of service times for three different operations.a. Determine the service rate for each operation.b. Would the calculated rates be different if these were interarrival times
A group of 10 machines is loaded and unloaded by one of three servers. The machines run for an average of six minutes per cycle, and average time to unload and reload is nine minutes.Each time can be
Describe the type of problem that would lend itself to a solution using linear programming.
Formulate a linear programming model from a description of a problem.
Solve simple linear programming problems using the graphical method.
Interpret computer solutions of linear programming problems.
Do sensitivity analysis on the solution to a linear programming problem.
A small construction firm specializes in building and selling single-family homes. The firm offers two basic types of houses: model A and model B. Model A houses require 4,000 labor hours, 2 tons of
This LP model was solved by computer:The following information was obtained from the output. The ranges were also computed based on the output, and they are shown as well.a. Which decision variables
Explain the strategic importance of product and service design.
Describe what product and service design does.
Name the key questions of product and service design.
Identify some reasons for design or redesign.
List some of the main sources of design ideas.
Discuss the importance of legal, ethical, and sustainability considerations in product and service design.
Explain the purpose and goal of life-cycle assessment.
Explain the phrase “the 3 Rs.”
Briefly describe the phases in product design and development.
Discuss several key issues in product or service design.
Discuss the two key issues in service design.
List the characteristics of well-designed service systems.
List some guidelines for successful service design.
A firm’s manager must decide whether to make or buy a certain item used in the production of vending machines. Making the item would involve annual lease costs of $150,000. Cost and volume
A small firm produces and sells automotive items in a five-state area. The firm expects to consolidate assembly of its battery chargers line at a single location. Currently, operations are in three

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