8. Three components – x, y, and z- are made at the same machine via lot production. Setup time, run time, and lot size for each item are as follows: Component Setup time, hr. Run time, min. Lot size 1 800 1.5 400 1 500 One lot of each component is waiting at the machine to be processed: each component is needed immediately. (a) What is the minimum lead time for obtaining all three components? (b) We want to reduce this lead time to 12 hours by reducing setup time and lot size by the same factor for all items. What should the resulting setup time and lot size be for each component?
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- An order for 100 of a product is processed on operation A and operation B. The setuptime on A is 50 minutes, and the run time per piece is 9 minutes. The setup time onB is 30 minutes, and the run time is 6 minutes per piece. It takes 20 minutes to movea lot between A and B. Since this is a rush order, it is given top priority (president’sedict) and is run as soon as it arrives at either workstation.It is decided to overlap the two operations and to split the lot of 100 into two lotsof 60 and 40. When the first lot is finished on operation A, it is moved to operation Bwhere it is set up and run. Meanwhile, operation A completes the balance of the 100units (40) and sends the units over to operation B. These 40 units should arrive asoperation B is completing the first batch of 60; thus, operation B can continue withoutinterruption until all 100 are completed.a. Calculate the total manufacturing lead time for operation A and for B withoutoverlapping.b. Calculate the manufacturing lead time…For a given process, the raw processing time is 102 sec, the bottleneck cycle time is 20 sec/item, and the WIP is 6 items. The expected lead-time (LT) is ____ seconds. Enter a whole number answer.The following table contains order-dependent setup times for four jobs. For safety reasons, jobC cannot follow job A, nor can job A follow job C. Determine the processing sequence that willminimize the total setup time. (Hint: There are 12 alternatives.)Following Job’sSetup Time (hrs.)SetupTime (hrs.) A B C DPrecedingjobA 2 — 5 × 4B 1 7 — 3 2C 3 x 2 — 2D 2 4 3 6 —
- What method uses more processing time and resources: preemptive or non-preemptive scheduling?SpikLock makes several lines of metal items. The most recent order has been for 1200 door lock units for an apartment complex developer. The sales and production departments must work together to determine delivery schedules. Each lock unit consists of three components: the knob and faceplate, the actual lock itself, and a set of two keys. Although the processes used in the manufacture of the three components vary, there are three areas where the production manager is concerned about the availability of resources. These three areas, their usage by the three components, and their availability are detailed in the table. Resource Knob and Plate Lock Key (each) Available Brass Alloy 12 5 1 15000 units Machining 18 20 10 36000 minutes Finishing 15 5 1 12000 minutes A quick look at the amounts available confirms that SpikLock does not have the resources to fill this contract. A subcontractor, who can make an unlimited number of each…Registration at Southern University has always been a time of emotions, commotions and lines. students must move among 4 stations to complete the process. last semester's registration is in fig. 9.20. 450 students moved from the paperwork station (A) to advising (B) and 550 students went directly from (A) to pick up class cards (C). preregistered graduate students went directly to pay (D). A to D is in a linear fashion and the distance from A to B, B to C and C to D is 30feet. a. calculate the movement cost or 'load x distance' of the layout b. provide an improved layout and provide its movement cost
- The type of schedule where workers work on a i xed schedule each week over a four- to six-week period.2-The process of making hotdogs involves six activities: “grind”, “mix”, “stuff”, “cook”, “peel”, and “inspect”. If the capacity of activity “cook” determines the process capacity, which of the following statements are true? a- Activity “cook” is a bottleneck activity. b- The activity time of all the other five activities is shorter than activity "cook". c- Cycle time of the process of making hotdogs is equal=1/capacity of activity “cook”. d- Increasing the capacity of activity “grind” can increase the capacity of the process of making hotdogs. All statements are correct Only statement 'b' is correct Only statements 'a' and 'b' are correct Only statements 'a', 'b' and 'c' are correct Only statement 'a' is correct Only statement 'd' is correct1- Describe the three main measures used in the theory of constraints 2- What are the steps managers can take to manage bottlenecks?
- A furniture factory makes two types of wooden tables,large and small. See the flowchart below.SetupTime,MinutesRun Timeper Piece,MinutesCapacity,Piecesper HourWood cutting 30 5 15Make four legs 60 10 10Make tops 60 12 8Finish the wood 20 8 12Assemble and ship 20 17 14 Small tables are made in batches of 100, and large tables are made in batches of 50. A batch includes a fixed setup time for the entire batch at each process step and a run time for each piece in the batch. Both large and small tables have the same processing times. The capacities of each process step are given, and apply to production of either type of table, as shown in the flowchart.a. What is the capacity of the system, and what is the bottleneck?b. What are the throughput times for batches of large and small tables?c. When producing at a rate of six small tables per hour on average, how many tables will be in the system?The Assembly Department started the month with 37,000 units in its beginning work in process inventory. An additional units 482,000 were transferred in from the prior department during the month to begin processing in the Assembly Department. There were 34,000 units in the ending work in process inventory of the Assembly Department. How many units were transferred to the next processing department during the month? A. none of the options B. 485,000 C. 473,000 D. 479,000On Monday morning, Baxter Industries has the following jobs waiting for processing in two departments, milling, and drilling, in that order. Time Required (hours) Job Mill Drill 216 7 6 327 4 10 462 6 3 519 5 8 258 8 7 617 9 10 Develop a minimum makespan schedule using Johnson's rule. The schedule using Johnson's rule is - - - - - . Choose the correct Gantt chart with the minimum makespan schedule.