Concept explainers
(a)
Interpretation: The company is manufacturing smartphones and 20 technicians are working with a capacity of 400 seconds per technician. The company wants to know the number of hours required to manufacture 1200 smartphones daily.
Concept Introduction: Process layout refers to the assembling of similar operations of similar machinery in a particular department instead of machinery or work stations which are not arranged as per production sequence.
(b)
Interpretation: The company is manufacturing smartphones and 20 technicians are working with a capacity of 400 seconds per technician. The company wants to know the minimum theoretical number of workstations for an assembly line.
Concept Introduction: Process layout refers to the assembling of similar operations of similar machinery in a particular department instead of machinery or work stations which are not arranged as per production sequence.
(c)
Interpretation: The company is manufacturing smartphones and 20 technicians are working with a capacity of 400 seconds per technician. The company wants to know the efficiency of the assembly line of the company.
Concept Introduction: Process layout refers to the assembling of similar operations of similar machinery in a particular department instead of machinery or work stations which are not arranged as per production sequence.
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Practical Operations Management
- Four automobiles have entered Bubba’s Repair Shop for various types of work, ranging from a transmis-sion overhaul to a brake job. The experience level of the mechanics is quite varied, and Bubba would liketo minimize the time required to complete all of thejobs. He has estimated the time in minutes for eachmechanic to complete each job. Billy can completejob 1 in 400 minutes, job 2 in 90 minutes, job 3 in60 minutes, and job 4 in 120 minutes. Taylor willfinish job 1 in 650 minutes, job 2 in 120 minutes, job3 in 90 minutes, and job 4 in 180 minutes. Mark willfinish job 1 in 480 minutes, job 2 in 120 minutes, job3 in 80 minutes, and job 4 in 180 minutes. John willcomplete job 1 in 500 minutes, job 2 in 110 minutes,job 3 in 90 minutes, and job 4 in 150 minutes. Eachmechanic should be assigned to just one of these jobs.What is the minimum total time required to finish thefour jobs? Who should be assigned to each job?arrow_forwardThe Gardner Theater, a community playhouse, needs to determine the lowest-cost production budget for an upcoming show. Specifically, they have to determine which set pieces to construct and which, if any, set pieces to rent from another local theater at a predetermined fee. However, the organization has only two weeks to fully construct the set before the play goes into technical rehearsals. The theater has two part-time carpenters who work up to 12 hours a week, each at $10 an hour. Additionally, the theater has a part-time scenic artist who can work 15 hours per week to paint the set and props as needed at a rate of $15 per hour. The set design requires 20 flats (walls), two hanging drops with painted scenery, and three large wooden tables (props). The number of hours required for each piece for carpentry and painting is shown below: Gardner Theater Hours Required/Piece Carpentry Painting Flats 0.5 2.0 Hanging Drops 2.0 12.0 Props 3.0 4.0 Hours Available 48.0…arrow_forwardSuper Fun Industries manufactures four top-selling toys code-named A-148, B-356, B-457, and C-843. The following table shows how long it takes to process each toy through each required station. Note that all times are in minutes. Super Fun's manufacturing plant is open 12 hours a day, 5 days a week, and 8 hours on Saturday. b. If weekly demand for the four products are A-148=180 units, B-356=310 units, B-457=280 units, and C-843=300 units, which station is the bottleneck, and is it capable of producing all the toys demanded? The bottleneck for Super Fun Industries is ▼ Station 1 Station 2 Station 3 Station 4 , with a utilization of ______%. (Enter your response rounded to one decimal place.)arrow_forward
- An assembly line for inkjet printers is composed of 8 persons performing different tasks. Compute forthe cycle time if the line has an 8-hour shift and requires 95 units to be finished in one shift.arrow_forwardIf a trip between work and home takes 15 minutes each way, how much time will be spent in a 5-day work week traveling back and forth to work?arrow_forwardAs part of a major plant renovation project, the industrial engineering department has been asked to balance a revised assembly operation to achieve an output of 250 units per 8-hour day. Task times and precedence relationships are as follows: Task Duration(minutes) ImmediatePredecessor a 0.5 - b 0.4 a c 0.5 b d 0.3 - e 1.8 d f 1.9 c g 2 e, f Do each of the following: a. Determine the number of followers for each task. (Please answer number of tasks following task for A-G)arrow_forward
- A product is completed when 18 tasks are done. These tasks are assigned to 6 workstations (each workstation handling several tasks) in an assembly line set up. All workstations work the same amount of time (= cycle time), and move the (partial) product to the next workstation, and repeat this process. The last workstation generates the finished product. We need 1200 units made every day (= 8 hours). If we run this line with a cycle time of 0.3 minutes, what is the most amount of work (in minutes) that can be done on this product? (Give the answer with one decimal place)arrow_forwarda machine installation job can be finished by 40 men in 40 days. how long will it take for 50 men to finish the same job? show solution.arrow_forwardPart A is processed on a MILLING machine; Part B is processed on a LATHE machine. Two parts (A and B) are then assembled on an ASSEMBLY machine. Standard times, scrap rates, efficiency, and availability of each machine and the assembly are given in the table below. Determine the number of milling (M), the lathe (L) and the assembly (A) machines needed to produce 100 good parts from this production system during and 8-hour (480 minutes) shift. (Note: Round up the number of parts processed on each station and then round up the number of machines needed).arrow_forward
- A manufacturer is designing a product layout for a new product production. It plans to use a production line for 8 hours per day in order to meet forecasted demand of 90 units per day. The product requires 7 tasks in total. These tasks are namely, A, B, C D E F and G respectively. Task A does not have any predecessor to start. To start Task B, it requires Task A to be completed, Starting tasks needs the task to be completed. Also starting task D, needed task B to be completed. Task E can only start upon completion of Task C. Whereas starting task F needs the completion of both the tasks D and E. Finally, starting task G needed, task F to be completed. The processing times for tasks, A, B, C, D, E, F. and G are 28.2.1,0.9, 10, 1.2.1.8 are 4.7 minutes respectively. How many minimum numbers of workstations are needed? a. 1 b. 6 c. None is correct d. 3 e. 5 please I neef answer along with the formula don't put it on excelarrow_forwardBaking dog treats in her kitchen has been a simple process for Emma to manage. She has two ovens, one sink, a refrigerator, and enough room for two people to work at the same time. However, when Emma moves her business out of her home, she will have a commercial kitchen that can accommodate as many as six people working simultaneously. She had never thought of her business as “production” until the real estate agent who showed her the space asked how many production workers she needs to accommodate. At that point, Emma realized she would be running a production system. Even worse, she realized that she had never even visited a manufacturing facility or set foot on a real production floor. How will she ever manage this process?arrow_forwardUnder the ZY company’s current warehouse operation, warehouse clerk dispatch order-picking personnel to fill each order and have the goods moved to the warehouse shipping area. Because of the high labour costs and relatively low productivity of hand order-picking, management has decided to automate the warehouse operation by installing a computer-controlled order system, along with a conveyor system for moving goods from storage to the warehouse shipping area. ZY’s director of material management has been named the project manager in charge of automated warehouse system. After consulting with members of the engineering staff and warehouse management personnel, the director compiled a list of activities associated with the project. The optimistic, most likely, and pessimistic times (in weeks) have also been provided for each activity, as shown below. Activity A B C D E F G H I J K Description Determine equipment needs Obtained Vendor proposals Select Vendor Order system Design…arrow_forward
- Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,