JOHNSON’S RULE Five specialty jobs at a La Crosse, Wisconsin, tool and die shop must be processed through two workcenters (drill press and lathe). The time for processing each job follows:Work (processing) Time for Jobs (hours)JOBWORK CENTER 1(DRILL PRESS) WORK CENTER 2(LATHE)A5 2B3 6C8 4D 10 7E 7 12
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JOHNSON’S RULE
Five specialty jobs at a La Crosse, Wisconsin, tool and die shop must be processed through two work
centers (drill press and lathe). The time for processing each job follows:
Work (processing) Time for Jobs (hours)
JOB
WORK CENTER 1
(DRILL PRESS)
WORK CENTER 2
(LATHE)
A5 2
B3 6
C8 4
D 10 7
E 7 12
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- The Union Manufacturing Company is producing two types of products: A and B. The demand forecasts, batch size, and time standards follow: Demand forecast (units/yr) Product A Product B 1,000 4,000 Batch size (units/batch) Processing time (hr/unit) 20 10 3.2 4.5 Setup time (hr/batch) 10 20 Both products are produced on the same machine, called Mark I. 11) Using Table 4.1, what is the total number of hours required of Mark I equipment for the next year? A) fewer than 29,000 hours B) between 29,000 and 30,000 hours C) between 30,000 and 31,000 hours D) more than 31,000 hoursCalculate the Critical Ratios (CR): (Enter all responses rounded to two decimal places.) Job CR 103 enter your response here Part 2 205 enter your response here Part 3 309 enter your response here Part 4 412 enter your response here Part 5 517 enter your response here ... Question content area right Part 1 The following 5 overhaul jobs are waiting to be processed at Avianic's Engine Repair Inc. These jobs were logged as they arrived. All dates are specified as planning calendar days. Job Due Date Duration (days) 103 223 7 205 217 11 309 219 5 412 218 15 517 214 10 Assume that all jobs arrived on day 180; today's date is 200.The following are the car repair shop data: Ticket No. Work Ticket No. Work Ticket No. Work 1 Tires 11 Lube & oil 21 Lube & oil 2 Brakes 12 Lube & oil 22 Tires 3 Tires 13 Tires 23 Lube & oil 4 Brakes 14 Brakes 24 Lube & oil 5 Tires 15 Transmission 25 Lube & oil 6 Lube & oil 16 Battery 26 Tires 7 Brakes 17 Lube & oil 27 Battery 8 Brakes 18 Lube & oil 28 Lube & oil 9 Lube & oil 19 Brakes 29 Brakes 10 Battery 20 Lube & oil 30 Tires Click here for the Excel Data File Problem 9-1 Part a (Algo) a. Prepare a check sheet for the above car repair shop data:
- [The following information applies to the questions displayed below.] The following are the car repair shop data: TETE Ticket No. Work Ticket No. Work Ticket No. Work 1 Lube & oil 11 Battery 21 Battery Tires 2 Lube & oil 12 Tires 22 3 Brakes 13 Brakes 23 Brakes 4 Lube & oil 14 Transmission 24 Transmission Lube & oil 15 Brakes 25 Brakes Tires 16 Battery 26 Lube & oil 7 Tires 17 Brakes 27 Lube & oil 8. Brakes 18 Tires 28 Lube & oil 9. Brakes 19 Tires 29 Tires 10 Lube & oil 20 Lube & oil 30 Lube & oilA machine shop manufactures two types of bolts. The bolts require time on each of the three groups of machines, but the time required on each group differs, as shown in the table below. Type I Type IIMachine 1 0.2 min 0.2 minMachine 2 0.6 min 0.2 minMachine 3 0.04 min. 0.08 min Production schedules are made up one day at a time. In a day, 300, 720, and 100 minutes are available, respectively, on these machines. Type I bolts sell for 15¢ and type II bolts for 20¢. (a) How many of each type of bolt should be manufactured per day to maximize revenue?(b) What is the maximum revenue?(c) Suppose the selling price of type I bolts began to increase. Beyond what amount would this price have to increase before a different number of each type of bolts should be produced to maximize revenue?3 = noito This work cell will produce 617 units per day (8h x 60 m x 60 se) / 46.67 = 617 Takt time = 140/3 = 46.67 Copyright © 2017 Pearson Education, Ltd. Takt time design Creating plate printing cutting packaging Example: 100 Al-Nojoom Company for advertising has identified the following operations as necessary for the work cell for producing color posters. The customer expects delivery 1000 poster per day, and the work day 10 hours. 1. What is the takt time? Copyright © 2017 Pearson Education, Ltd. 2. How many employees are required? 3. If the number of employees assumed to be 9 employees. Find the quantity of products they able to produce. 4. If the work cell has 4 employees find the Total work time by hours needed to produce 600 units with the same operational time. operation Standard time 21.01 unitnos (min) 1.1 0.9 .75 1.25 1 9-33 sill nG a super 9-34
- A company makes two products (A and B). Each product requires time on two machines 1 and 2. the specifications for each product are as follows Product A Product B Processing time on machine 1 (hrs/unit) Processing time on machine 2 (hrs/unit) Material and labor cost (Sh./ unit) Selling price (Sh./ unit) Maximum possible sale (units) 2 1 2 14 15 16 18 130 150 The amount of time available on machine 1 is 360 hrs and on machine 2 is 260 hrs. Using simplex method determine the number of product A and B, which should be sold in order to maximize total contribution for the company.Output from the Gantt chart drawn for a machining process is shown here. Determine the makespan of the process. Job Waiting Time (hr) Delivery Time (hr) 1 0 10 2 10 15 3 1 16n a manufacturing process, a molded part spends 7 hours in inventory before being placed in a deburring machine, where the part is processed for 2 minutes. After deburring, the part spends 4 hours in inventory waiting for its turn on the polishing machine. The part then spends 7 minutes in polishing before waiting 6 hours in line to be painted. The part goes through a painting process that takes 7 minutes, then spends 11 hours in inventory before being shipped to the customer. What is the percentage of value-added time for the part?
- How does seasonal variability in demand affect the l ow and waiting time through a process? How might a company respond to reduce the effect of this variability?The Holt Million Corporation’s plant manufactures two different products: X and Y. The plant has three different machines: A, B, and C. Each performs different tasks and can work on only one unit of material at a time. Details for each product are shown in the table below: Product X Y Demand Per Week 200 units 100 units Selling Price $150 $160 Machine Operation Required A, B, C B, B, C Operation Times in Minutes 20, 15, 15 15, 15, 15 Raw Materials Needed RM-1, RM-2 RM-2, RM-3 Raw Materials Costs RM-1 = $40/unit, RM-2 or RM-3 = $20/unit Each product uses raw materials with costs as shown in the above table where the processing times and the machine required for each operation are also shown. Each machine is available 4,800 minutes per week. There are no system foul-ups. Demand is deterministic (i. e., no uncertainty). Operating expenses, including labor (but excluding raw materials) total $12,000 per week. Assuming…The Holt Million Corporation’s plant manufactures two different products: X and Y. The plant has three different machines: A, B, and C. Each performs different tasks and can work on only one unit of material at a time. Details for each product are shown in the table below: Product X Y Demand Per Week 200 units 100 units Selling Price $150 $160 Machine Operation Required A, B, C B, B, C Operation Times in Minutes 20, 15, 15 15, 15, 15 Raw Materials Needed RM-1, RM-2 RM-2, RM-3 Raw Materials Costs RM-1 = $40/unit, RM-2 or RM-3 = $20/unit Each product uses raw materials with costs as shown in the above table where the processing times and the machine required for each operation are also shown. Each machine is available 4,800 minutes per week. There are no system foul-ups. Demand is deterministic (i. e., no uncertainty). Operating expenses, including labor (but excluding raw materials) total $12,000 per week. Assuming…