Operations Management: Sustainability and Supply Chain Management (12th Edition)
12th Edition
ISBN: 9780134130422
Author: Jay Heizer, Barry Render, Chuck Munson
Publisher: PEARSON
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Chapter 14, Problem 8P
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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3) Amelia Ltd. makes a plastic tricycle that is composed of three major
components: a handlebar-front wheel-pedal assembly, a seat and frame unit,
and rear wheels. The company has orders for 48,000 of these trikes. Current
schedules yield the following information.
Component
Front
Seat/Frame
Rear wheel
(each)
Available
Requirement
Plastic
12
16
.20
S
Model
Regular
Deluxe
Heavy
100000
Time
40
24
8
2
2
320000 60000
Page 4 of 9
Space Manufacture
8
16
8
4
Cost to
12
2
3
4
5
Cost to
Purchase
24
The company obviously does not have the resources available to manufacture
everything needed for the completion of 24000 tricycles so has gathered
purchase information for each component.
Requested:
Develop a linear programming model to tell the company how many of
each component should be manufactured and how many should be
purchased in order to provide 24000 fully completed tricycles at the
minimum cost.
18
6
4) A paint supply company makes three styles of Paint Rollers, regular, deluxe and
heavy.…
Explain Material Requirements Planning?
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.
Chapter 14 Solutions
Operations Management: Sustainability and Supply Chain Management (12th Edition)
Ch. 14 - What is the difference between a gross...Ch. 14 - Prob. 2DQCh. 14 - What are the similarities between MRP and DRP?Ch. 14 - How does MRP II differ from MRP?Ch. 14 - Which is the best lot-sizing policy for...Ch. 14 - What impact does ignoring carrying cost in the...Ch. 14 - MRP is more than an inventory system; what...Ch. 14 - What are the options for the production planner...Ch. 14 - Master schedules are expressed in three different...Ch. 14 - What functions of the firm affect an MRP system?...
Ch. 14 - Prob. 11DQCh. 14 - Identify five specific requirements of an...Ch. 14 - What are the typical benefits of ERP?Ch. 14 - What are the distinctions between MRP, DRP, and...Ch. 14 - As an approach to inventory management, how does...Ch. 14 - What are the disadvantages of ERP?Ch. 14 - Use the Web or other sources to: a. Find stories...Ch. 14 - Prob. 18DQCh. 14 - Use the Web or other sources to identify what an...Ch. 14 - You have developed the following simple product...Ch. 14 - You are expected to have the gift bags in Problem...Ch. 14 - Prob. 3PCh. 14 - Prob. 4PCh. 14 - The demand for subassembly S is 100 units in week...Ch. 14 - Using the information in Problem 14.3, construct a...Ch. 14 - Using the information in Problem 14.3, construct a...Ch. 14 - Refer again to Problems 14.3 and 14.4. In addition...Ch. 14 - Refer again to Problems 14.3 and 14.5. In addition...Ch. 14 - a. Given the product structure and master...Ch. 14 - Prob. 11PCh. 14 - Based on the data in Figure 14.13, complete a net...Ch. 14 - Prob. 13PCh. 14 - A part structure, lead time (weeks), and on-hand...Ch. 14 - You are product planner for product A (in Problem...Ch. 14 - Prob. 16PCh. 14 - Prob. 17PCh. 14 - Data Table for Problems 14.17 through 14.20 14.17...Ch. 14 - Develop an EOQ solution and calculate total...Ch. 14 - Develop a POQ solution and calculate total...Ch. 14 - Using your answers for the lot sizes computed in...Ch. 14 - Prob. 26PCh. 14 - Grace Greenberg, production planner for Science...Ch. 14 - Karl Knapps, Inc., has received the following...Ch. 14 - Coleman Rich, Ltd., has received the following...Ch. 14 - Prob. 31PCh. 14 - Using the data for the coffee table in Problem...Ch. 14 - When 18,500 Orlando Magic Fans Come to Dinner...Ch. 14 - When 18,500 Orlando Magic Fans Come to Dinner...Ch. 14 - When 18,500 Orlando Magic Fans Come to Dinner...Ch. 14 - MRP at Wheeled Coach Video Case Wheeled Coach, the...Ch. 14 - MRP at Wheeled Coach Video Case Wheeled Coach, the...Ch. 14 - MRP at Wheeled Coach Video Case Wheeled Coach, the...
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- 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
- Create the best suitable ERP installation project approach for all circumstances. X'sarrow_forward1-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_forward2. What is Material Requirement Planning (MRP)? Briefly explain THREE (3) advantages from its use.arrow_forward
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