Concept explainers
Refer again to Problems 14.3 and 14.4. In addition to 100 units of S, there is also a demand for 20 units of U, which is a component of S. The 20 units of U are needed for maintenance purposes. These units are needed in week 6. Modify the gross material requirements plan to reflect this change.
• 14.4 Using the information in Problem 14.3, construct a gross material requirements plan.
•• 14.3 The demand for subassembly S is 100 units in week 7. Each unit of S requires 1 unit of T and 2 units of U. Each unit of T requires 1 unit of V, 2 units of W, and 1 unit of X. Finally, each unit of U requires 2 units of Y and 3 units of Z. One firm manufactures all items. It takes 2 weeks to make S, 1 week to make T, 2 weeks to make U, 2 weeks to make V, 3 weeks to make W, 1 week to make X, 2 weeks to make Y, and 1 week to make Z.
- a. Construct a product structure. Identify all levels, parents, and components.
- b. Prepare a time-phased product structure.
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Operations Management
- 3) Amelia Ltd. makes a plastic tricycle that is composed of three major components: ahandlebar-front wheel-pedal assembly, a seat and frame unit, and rear wheels. Thecompany has orders for 48,000 of these trikes. Current schedules yield thefollowing information. Requirements Component Plastic Time Space Cost to Manufacture Cost to Purchase Front seat /Frame Rear wheel (each) 12 16 .20 40 24 8 8 8 .4 16 12 2 24 18 6 Available 100000 320000 60000 The company obviously does not have the resources available to manufactureeverything needed for the completion of 24000 tricycles so has gathered purchaseinformation for each component. Develop a linear programming model to tell thecompany how many of each component should be manufactured and how manyshould be purchased in order to provide 24000 fully completed tricycles at theminimum cost.arrow_forwardBuild a gross requirements planarrow_forwardExplain the approach of MRP while dealing with the inventory management ?arrow_forward
- Year Demand History for the Bow Rake: DEMAND Month Year 1 Year 2 Year 3 Year 4 1 55,220 39,875 32,180 62,377 2 57,350 64,128 38,600 66,501 3 15,445 47,653 25,020 31,404 4 27,776 43,050 51,300 36,504 5 21,408 39,359 31,790 16,888 6 17,118 10,317 32,100 18,909 7 18,028 45,194 59,832 35,500 8 19,883 46,530 30,740 51,250 9 15,796 22,105 47,800 34,443 Prepare a graph that shows the four-year demand history for the bow rake. Discuss any apparent trend and seasonal patterns. 2. Which forecasting method might be best for bow rakes for each month of Year 5? Why?arrow_forwardWhat does MRP stand for?arrow_forwardEvaluate and compare MRP lot-sizing techniques.arrow_forward
- 1-Shielding gas for a welding operation would most likely be considered what type of material? Group of answer choices Direct Material Indirect material No answer text provided. 2-Material already in inventory may only have one costs according to generally acceptec accounting principles. Group of answer choices true false 3-Number of parts needed; 9 Volume of rough casting including sprues, gates, etc. per part is 5000 in^3 or 1450 lbs. Volume of finished part 3500 in^3 or 1015 lbs. You must buy material in 2000 lb increments. The material is $1.15 per b The material is 0.29 lb/in^3 (3.4483 in^3/lb) What is the material shape efficiency? Group of answer choices 35% 44% 65% 73% X Ilarrow_forwardCreate the best suitable ERP installation project approach for all circumstances. X'sarrow_forward2. What is Material Requirement Planning (MRP)? Briefly explain THREE (3) advantages from its use.arrow_forward
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