B9 For the production of part R-193, two operations are being considered. The capital investment associated with eachoperation is identical.Operation 1 produces 1,400 parts per hour. After each hour, the tooling must be adjusted by the machine operator.This adjustment takes 20 minutes. The machine operator for Operation 1 is paid $17 per hour (this includes fringebenefits).Operation 2 produces 1,050 parts per hour, but the tooling needs to be adjusted by the operator only once every twohours. This adjustment takes 30 minutes. The machine operator for Operation 2 is paid $11 per hour (this includesfringe benefits)Assume an 8-hour workday. Further assume that all parts produced can be sold for $0.25 eacha. Should Operation 1 or Operation 2 be recommended?b. What is the basic tradeoff in this problem?SALa. The profit using Operation 1 is $ 1,964 per day (Round to the nearest dollar)The profit using Operation 2 is $ 1,592 per day (Round to the nearest dollar)Operation 1 should be chosen.b. Choose the correct answer belowAA higher production for Operation 2 is being traded off for a higher tool changing time (downtime)B. A higher production for Operation 2 is being traded off for a lower tool changing time (downtime).A higher production for Operation 1 is being traded off for a higher tool changing time (downtime)D. A higher production for Operation 1 is being traded off for a lower tool changing time (downtime)

Operation 1: Production per hr =1400 Adjustment time = 20 mins Labor cost per hr = 17 Selling price…

Answered: For the production of part R-193, two…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter4: Linear Programming Models

Section4.8: Data Envelopment Analysis (dea)

Problem 42P

See similar textbooks

Similar questions

A startup company is considering making a part by injection molding. The part is moderately complex and the volume of the part is about 10 cubic centimeters. Assume that the part is designed for injection molding and can be made with a two part mold. The company needs to make 250,000 parts made from ABS plastic. Once the mold is made it will take a worker 1 minute to make one part using the injection molding machine. The company will use contract manufacturing to produce the parts. Estimate the cost per part and explain how you came up with the number. (If you are stuck look at the Contract Manufacturing Cost per Unit section. Also keep in mind that there is no exact right answer, the goal is to come up with a reasonable estimate.) Contract Manufacturing Cost per Unit: It’s not uncommon to hire another company to perform some or all the manufacturing for a product. To estimate the cost use ((Cost of Parts and Materials) + (man hours) × $40)/.75
a) Refer to Scenario C: Which task(s) would be blocked? Check all that apply. Task 1 Task 2 Task 3 Task 4 Task 5 b) Refer to Scenario C. What would the utilization of Task 3 be? Pick the closest answer. 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% c) Suppose you are given the same process as Scenario C, except with buffers between each of the tasks (shown attached). Buffers have no limit to the number of items they can potentially hold. Suppose each buffer shaded in blue starts with 35 units in inventory. After 3 hours, approximately how many finished units will Task 5 have produced? Pick the closest answer. 10 20 30 40 50 60
The Tesla Model S, one of the most sought-after luxury cars, is produced in Tesla’s Freemont factory in California. The production process can be broken up into the following subprocesses. Stamping: In the stamping process, coils of aluminum are unwound, cut into level pieces of sheet metal, and then inserted into stamping presses that shape the metal according to the geometry of the Model S. The presses can shape a sheet of metal in roughly 6 seconds. Subassembly: The various pieces of metal are put together using a combination of joining techniques,including welding and adhesion. This creates the body of the vehicle.Paint: The body of the vehicle is then moved to the paint shop. After painting is completed, the body moves through a 350° oven to cure the paint, followed by a sanding operation that ensures a clean surface. General assembly: After painting, the vehicle body is moved to the final assembly area. Here, assembly workers and assembly robots insert the various subassemblies,…
. 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?
Consider the following three-step assembly operation with quality problems. All resources 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% probability, the flow unit coming out of the third resource has to be reworked. In that case, the operations at the 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. Where in the process is the bottleneck? 1 point Step 3 Step 2 Step 1 5.Question 5
Consider the following three-step assembly operation with quality problems. All resources 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% probability, the flow unit coming out of the third resource has to be reworked. In that case, the operations at the 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. Where in the process is the bottleneck?
A local bakery is renowned for its elaborately cecorated sheet cakes. Consider the following process information: One baker is ivailable to prepare the cake batter (measuring and mixing ingredients and then adding it to baking pans). On average, this takes 10 minutes to prepare two cakes, ie. to make enough batter for 2 cakes and to add the batter to 2 cake pans. Move time to add and remove them from the oven is neglig bile, it takes 32 minutes to bake cakes - the bakery has two ovens, each able to hold 2 cakes. The one pastry chef on staff puts on an amazing show that draws a crowd all day-each cake is decorated in 6 minutes. The bakery operates 8 hours per day. Answer each of the following questions: a. What is the cycle time (in minutes per cake) of each stage - preparing, baking, and decorating? b. What is the dally process capacity? Explain. c. If orders arrive at a rate of 3 cakes every 20 minutes, can the bakery meet the caily demand Explain, Note: Be clear about how you…
Three professors are grading a combined final exam. Each is grading different questions on the test. One professor requires three minutes to finish her portion, a second takes six minutes, and the third takes two minutes. Assume that there is no learning curve effect. a) What will be their hourly output? b) If there are 45 tests to grade, how long will the grading take? c) If each professor were to grade the exams separately in 18 minutes, how long would it take to grade the 45 tests? How long if another professor (who also required 18 minutes) joined them? d) If another professor pitches in just to help the second professor in the original arrangement, how long will it take the four of them to grade the tests? e) If a fifth professor offers to help, what might happen? *Need answers for parts d and e only*
Quasi-Tech Corporation produces specially machined parts. The parts are produced in batches in one continuous manufacturing process. Each part is custom produced and requires special engineering design activity (based on customer specifications). Once the design is completed, the equipment can be set up for batch production. Once the batch is completed, a sample is taken and inspected to see if the parts are within the tolerances allowed. Thus, the manufacturing process has four activities: engineering, setups, machining, and inspecting. Costs have been assigned to each activity using direct tracing and resource drivers as follows: Activity Expected Cost Activity Driver Activity Capacity Engineering $1,000,000 Engineering hours 5,000 hours Setups 900,000 Setups 200 setups Machining 2,000,000 Machine hours 25,000 machine hours Inspection 800,000 Inspection hours 2,500 inspection hours Quasi-Tech produces two models: Model C and Model D. The following table…
William Beebe owns a small shoe store. He has 10 pairs of shoes that requireresoling and polishing. He has a machine that can resole one pair of shoes at atime, and the time required for the operation varies with the type and condition of theshoe and the type of sole that is used. Shoes are polished on a machine dedi-cated tothis purpose as well, and polishing is always done after resoling. His assistant generally does the polishing while Mr. Beebe does the resoling. The resoling and polishingtimes (in minutes) are Shoes Resoling Time Polishing Time1 14 32 28 13 12 24 6 55 10 106 14 67 4 128 25 89 15 510 10 5In what order should the shoes be repaired in order to minimize the total makespanfor these 10 jobs?
Consider the following two production processes making an electronic component for a navigation system. Both processes consist of 20 stations and operate at a cycletime of 1 minute/unit. Their most error-prone operation is step 9:• Process 1 has a final inspection at the end of the process and has about 300 units of inventory between step 9 and the inspection.• Process 2 has each worker check the work of the previous steps and about 50 units ofinventory between step 9 and the end of the process, roughly equally distributed across theremainder of the process.What would be the information turnaround time for a defect made at station 9?
As the attrition loss in a process increases, what happens to the yield?a. The yield increases.b. The yield stays the same.c. The yield decreases.d. Cannot determine from the given information.

SEE MORE QUESTIONS

Recommended textbooks for you

Practical Management Science

Operations Management

ISBN:

9781337406659

Author:

WINSTON, Wayne L.

Publisher:

Cengage,

Practical Management Science

Operations Management

ISBN:

9781337406659

Author:

WINSTON, Wayne L.

Publisher:

Cengage,

SEE MORE TEXTBOOKS