Which of the following statements is true? In a factory operating at capacity, every machine and person should be working at the maximum possible rate. One way to increase the effective utilization of a bottleneck is to reduce the number of defective units.
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Which of the following statements is true?
- In a factory operating at capacity, every machine and person should be working at the maximum possible rate.
- One way to increase the effective utilization of a bottleneck is to reduce the number of defective units.
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- Describe four potential problems that might develop when operating a large number of processes at the same time.Is there a way to increase the machine's output while minimizing the time it requires maintenance?Hammond Inc. has analyzed the setup time on its computer-controlled lathe. The setup requires changing the type of fixture that holds a part. The average setup time has been 135 minutes, consisting of the following steps: Step Time (in minutes) Turn off machine and remove fixture from lathe 13 Go to tool room with fixture 15 Record replacement of fixture to tool room 18 Return to lathe 20 Clean lathe 17 Return to tool room 20 Record withdrawal of new fixture from tool room 12 Return to lathe 15 Install new fixture and turn on machine 8 Total setup time 138 Why should management be concerned about improving setup time? What do you recommend to Hammond Inc. for improving setup time? How much time would be required for a setup, using your suggestion in (b)?
- These four phases make up a machine cycle, which is also known as a process loop. What percentage of a machine's cycle time do you value the most? Should I be concerned about replacing parts of the machine cycle when they wear out? Is the problem of switching modules improved by adding a second module?Consider the following four-step assembly operation with quality problems. All resources are staffed by one employee. • The first resource has a processing time of 5 minutes per unit. • The second resource has a processing time of 6 minutes per unit. • The third resource has a processing time of 3 minutes per unit. With a 30 percent probability, the flow unit coming out of the third resource has to be reworked. In that case, the operations at the first, second, and third resources are repeated. You can assume that (a) rework always succeeds (i.e., a unit going through the rework loop will always work after the third resource) and (b) the processing times for units in rework are the same as for regular units. • The fourth resource has a processing time of 4 minutes per unit. With this information in hand, answer the following questions: • What is the bottleneck process? • What is the capacity of the process?A machine cycle, commonly referred to as a process loop, is made up of these four individual components. Which aspects of the machine's functioning are most important and why? Should one be worried with the replacement of each individual component that makes up the machine cycle? Does the installation of a second module make it such that switching between them isn't as much of a problem?
- . Consider the following four-step assembly operation with quality problems. Allresources are staffed by one employee.• The first resource has a processing time of 5 minutes per unit.• The second resource has a processing time of 6 minutes per unit.• The third resource has a processing time of 3 minutes per unit. With a 30 percent probability, the flow unit coming out of the third resource has to be reworked. In that case,the operations at the first, second, and third resources are repeated. You can assumethat (a) rework always succeeds (i.e., a unit going through the rework loop will alwayswork after the third resource) and (b) the processing times for units in rework are thesame as for regular units.• The fourth resource has a processing time of 4 minutes per unit.a. Where in the process is the bottleneck?b. What is the capacity of the process?(a) T. Smunt Manufacturing Corp. has the process displayed below. The drilling operation occurs separately from and simultaneously with the sawing and sanding operations. The product only needs to go through one of the three assembly operations (the assembly operations are "parallel"). ASSEMBLY SAWING SANDING 78 min/unit 15 min/unit 15 min/unit WELDING ASSEMBLY DRILLING 25 min/unit 78 min/unit 27 min/unit ASSEMBLY 78 min/unit 1. Which operation is the bottleneck? 2. What is the throughput time for the overall system? 3. If the firm operates 8 hours per day, 22 days per month, what is the monthly capacity of the manufacturing process? 4. Suppose that a second drilling machine is added, and it takes the same time as the original frilling machine. What is the new bottleneck time of the system? 5. Suppose that a second drilling machine is added, and it takes the same time as the original drilling machine. What is the new throughput time?These four phases make up a machine cycle, which is also known as a process loop. What percentage of a machine's cycle time do you value the most? Should I be concerned about replacing parts of the machine cycle when they wear out? Does the implementation of a second module resolve the problem of toggling between them?
- Smooth Chin Device Company The Smooth Chin Device Company is a manufacturer of high--end electric razors. These razors are produced using a machine--paced process. For each razor, a tray with components enters the process at the beginning of a conveyor belt. The tray then passes through the six steps (consisting of various tasks) explained in the table below. Workers perform the assembly operations on the moving tray. The last step consists of an inspection of the then fully assembled razor. The activity times of the process are as follows: Station Tasks A Preparation 1. Lay out chassis [12 sec] 2. Lay out screws [15 sec] 3. Lay out all other components [17 sec] Total time for A: 44 sec B Assembly 4. Perform task AS1 [10 sec] 5. Perform task AS2 [10 sec] 6. Perform task AS3 [20 sec] Total time for B: 40 sec C Assembly 7. Perform task AS4 [14 sec] 8. Perform task AS5 [16 sec] 9. Perform task AS6 [20 sec] 10. Perform task AS7 [5 sec] Total time for C: 55 sec…Smooth Chin Device Company The Smooth Chin Device Company is a manufacturer of high--end electric razors. These razors are produced using a machine--paced process. For each razor, a tray with components enters the process at the beginning of a conveyor belt. The tray then passes through the six steps (consisting of various tasks) explained in the table below. Workers perform the assembly operations on the moving tray. The last step consists of an inspection of the then fully assembled razor. The activity times of the process are as follows: Station Tasks A Preparation 1. Lay out chassis [12 sec] 2. Lay out screws [15 sec] 3. Lay out all other components [17 sec] Total time for A: 44 sec B Assembly 4. Perform task AS1 [10 sec] 5. Perform task AS2 [10 sec] 6. Perform task AS3 [20 sec] Total time for B: 40 sec C Assembly 7. Perform task AS4 [14 sec] 8. Perform task AS5 [16 sec] 9. Perform task AS6 [20 sec] 10. Perform task AS7 [5 sec] Total time for C: 55 sec…Consider the assembly line of a laptop computer. The line consists of 10 stations and operates at a cycle time of 2 minutes/unit. Their most error-prone operation is step 2. There is no inventory between the stations because this is a machine-paced line. Final inspection happens at station 10. What would be the information turnaround time for a defect made at station 2? answer:_______minutes