Operations Management
17th Edition
ISBN: 9781259142208
Author: CACHON, Gérard, Terwiesch, Christian
Publisher: Mcgraw-hill Education,
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Chapter 7, Problem 3CQ
Summary Introduction
To determine: The appropriate production cycle.
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A product requires four parts that are made on the same lathe. Call the parts A, B, C,and D. The product requires 1 unit of A, 2 of B, 4 of C, and 8 of D. Which of the following production cycles is most appropriate?a. A: 100, B: 100, C: 100, D: 100 c. A: 100, B: 150, C: 200, D: 400b. A: 101, B: 102, C: 104, D: 108 d. A: 100, B: 200, C: 400, D: 800
A machine makes two components; call them types A and B. It takes 630 seconds to switch production between the component types. During that time, no production occurs. When in production, each unit of A or B requires 0.5 second to be completed. The two components, A and B, are combined in an assembly process to make a final product; call it C. The assembly step can combine the two components into 1 unit every 4 seconds, or 15 units per minute.
Suppose the machine rotates between one batch of 2,520 units of A and 2,520 units of B. In that case, what is the capacity of the machine in component pairs per minute, where a component pair is one unit of A and one unit of B?
A machine makes two components; call them types A and B. It takes 630 seconds to switch production between the component types. During that time, no production occurs. When in production, each unit of A or B requires 0.5 second to be completed. The two components, A and B, are combined in an assembly process to make a final product; call it C. The assembly step can combine the two components into 1 unit every 4 seconds, or 15 units per minute.
Suppose the machine rotates between one batch of 2,520 units of A and 2,520 units of B. In that case, what is the capacity of the machine in component pairs per minute, where a component pair is one unit of A and one unit of B?
Suppose the machine rotates between one batch of 2,520 units of A and 2,520 units of B. What is the utilization of the machine?
Suppose the machine rotates between one batch of 2,520 units of A and 2,520 units of B. What is the average inventory of B components?
If the production schedule could be adjusted with…
Chapter 7 Solutions
Operations Management
Ch. 7 - Prob. 1CQCh. 7 - Prob. 2CQCh. 7 - Prob. 3CQCh. 7 - Prob. 4CQCh. 7 - Prob. 5CQCh. 7 - Prob. 6CQCh. 7 - Prob. 7CQCh. 7 - Prob. 8CQCh. 7 - Prob. 9CQCh. 7 - Prob. 10CQ
Ch. 7 - Prob. 11CQCh. 7 - Prob. 12CQCh. 7 - Prob. 13CQCh. 7 - Prob. 14CQCh. 7 - Prob. 1PACh. 7 - Prob. 2PACh. 7 - Prob. 3PACh. 7 - Prob. 4PACh. 7 - Sarahs Organic Soap Company makes four kinds of...Ch. 7 - Prob. 6PACh. 7 - Prob. 7PACh. 7 - Bruno Fruscalzo decided to set up a small...Ch. 7 - Prob. 9PACh. 7 - Prob. 10PACh. 7 - Prob. 1CCh. 7 - Prob. 2CCh. 7 - Prob. 3CCh. 7 - Prob. 4C
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- A machine makes two components; call them types A and B. It takes 250 seconds to switch production between the component types. During that time, no production occurs. When in production, each unit of A or B requires 0.5 second to be completed. The two components, A and B, are combined in an assembly process to make a final product; call it C. The assembly step can combine the two components into 1 unit every 2 seconds, or 30 units per minute. Assume there is ample demand. Suppose the machine rotates between one batch of 1,000 unties of A and 1,000 units of B. What is the utilization of the machine? answer: _____percentarrow_forwardA machine makes two components; call them types A and B. It takes 250 seconds to switch production between the component types. During that time, no production occurs. When in production, each unit of A or B requires 0.5 second to be completed. The two components, A and B, are combined in an assembly process to make a final product; call it C. The assembly step can combine the two components into 1 unit every 2 seconds, or 30 units per minute. Assume there is ample demand. Suppose the machine rotates between one batch of 1,000 untis of A and 1,000 units of B. In that case, what is the capacity of the machine in component pairs per minute, where a component pair is one unit of A and one unit of B? answer: __________ component pair per minutearrow_forwardIf the takt time is shorter than the cycle time, the process needs to run faster. True orfalse?a. Trueb. Falsearrow_forward
- Because of long setup times, a company chooses to run big production batches. Whichof the following actions will level the production schedule?a. Using overtimeb. Mixing the models on the final linec. Making sure that rework is kept lowd. Reducing the waste of the processarrow_forwardA machine makes two components; call them types A and B. It takes 250 seconds to switch production between the component types. During that time, no production occurs. When in production, each unit of A or B requires 0.5 second to be completed. The two components, A and B, are combined in an assembly process to make a final product; call it C. The assembly step can combine the two components into 1 unit every 2 seconds, or 30 units per minute. Assume there is ample demand. If the production schedule could be adjusted with the goal of minimizing inventory in the process, how many units of A should be produced before switching to component B? In other words, calculate the optimal batch size for component A. Assume the same number of units of B would be produced as well. answer:_______unitsarrow_forwardSuppose a resource has setup times and a setup time must be incurred each time theresource switches production to a different product. Requiring the resource to make anew product (that requires its own setup) is likely to have what effect on the process?a. Inventory for existing products remains the same, but the process must now carryinventory of the new product.b. Inventory of all products is likely to increase.c. Inventory of existing products decreases even though the process must now carryinventory of the new product.d. Inventory of products with short setup times will decrease, while inventory of products with long setup times will increase.arrow_forward
- A copy machine is available 24 hours a day. On a typical day, the machine produces 100 jobs. Each job takes about 3 minutes on the machine, 2 minutes of which is processing time and 1 minute is setup time (logging in, defining the job). About 20 Percent of the jobs need to be reworked, in which case the setup time and the processing time have to be repeated. The remainder of the time, the equipment is idle. What is the OEE of the equipment? answer:______percentarrow_forwardBreak-even point is: adding processes to meet the point of changing product demands improving processes to increase throughput the point in dollars or units at which cost equals revenue adding or removing capacity to meet demand the total cost of a process alternativearrow_forwardNote- need a correct option without explanation as fast as possible!! The three-stage operations model requires transformation of the input resource into some form of output. Any one 'resource' can be involved at all three stages. True or false? A)True B)Falsearrow_forward
- What is the relationship between a process with rework and a process with scrap?a. Scrap and rework are not related.b. Scrap and rework are sequential processes. First, items are scrapped and then they arereworked.c. A process either has scrap or rework. The two are mutually exclusive. d. Scrap is a special case of rework in which flow units have to repeat all resources in the process up to the defectarrow_forwardThis is a step in a process that is the slowest compared tothe other steps. This step limits the capacity of the process.arrow_forward. Consider the following three-step assembly operation with quality problems. Allresources are staffed by one employee.• The first resource has a processing time of 7 minutes per unit.• The second resource has a processing time of 6 minutes per unit.• The third resource has a processing time of 5 minutes per unit. With a 40 percentprobability, the flow unit coming out of the third resource has to be reworked. In thatcase, the operations at the second and third resources are repeated. You can assumethat (a) rework always succeeds (i.e., a unit going through the rework loop willalways work after the third resource) and (b) the processing times for units in reworkare the same as for regular units.Where in the process is the bottleneck? What is the capacity of the process?arrow_forward
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