EBK OPERATIONS MANAGEMENT
14th Edition
ISBN: 9781260718447
Author: Stevenson
Publisher: MCG COURSE
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Chapter 13, Problem 5P
a. One hundred twenty units of end item Z are needed at the beginning of week 7. Prepare a material requirements plan for component C. Take into account that on hand there are 40 units of Z, 70 units of A, 100 units of B, and 30 units of C. Also, there is a
b. Ninety-five units of end item E are needed at the beginning of week 7. Prepare a material requirements plan for component D. Take into account that 5 units of E are currently on hand, as well as 50 units of B, 100 units of C, and 80 units of D. Also, 30 units of C have been outsourced and are expected to arrive in week 4. Lead times are two weeks for E and C. and one week for the other components. Assume lot-for-lot ordering except for D. where multiples of 40 must be used.
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a. One hundred twenty units of end item Z are needed at the beginning of week 7. Prepare a material requirements plan for component C. Take into account that on hand there are 40 units of Z,70 units of A, 100 units of B, and 30 units of C. Also, there is a scheduled receipt of 20 units ofcomponent C in week 4. Lead times are two weeks for Z and B, and one week for the other components. Lot-for-lot ordering will be used for all items
b. Ninety-five units of end item E are needed at the beginning of week 7. Prepare a material requirements plan for component D. Take into account that 5 units of E are currently on hand, as well as50 units of B, 100 units of C, and 80 units of D. Also, 30 units of C have been outsourced and areexpected to arrive in week 4. Lead times are two weeks for E and C, and one week for the othercomponents. Assume lot-for-lot ordering except for D, where multiples of 40 must be used.
Develop a material requirements plan for component H. Lead times for the end item and each component except B are one week. The lead time for B is three weeks. Sixty units of A are needed at the startof week 8. There are currently 15 units of B on hand and 130 of E on hand, and 50 units of H are inproduction and will be completed by the start of week 2. Lot-for-lot ordering will be used for all items.
3. Item Z has a lead time of two weeks; A, B, C and D take one week each and E takes 3 weeks.
Fifty units of Z are required in period 10. Assume that there is currently no inventory on hand of
any of these items.
Consider the following Bill of material and develop an MRP schedule for A, B, C, D and E showing
gross and net requirements and order releases and order receipt dates. Assume Lot-for-lot
ordering.
C(3)
A(2)
Z
D(4)
E(2)
B(4)
Level
0
1
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3
Chapter 13 Solutions
EBK OPERATIONS MANAGEMENT
Ch. 13.11 - What is ERP?Ch. 13.11 - What are the three main reasons firms adopt ERP?Ch. 13.11 - What are some hidden costs of ERP?Ch. 13.11 - How does ERP fit with e-commerce and supply chain...Ch. 13 - Contrast independent and dependent demand.Ch. 13 - When is MRP appropriate?Ch. 13 - Briefly define or explain each of these terms: a....Ch. 13 - Prob. 4DRQCh. 13 - Prob. 5DRQCh. 13 - What is meant by the term safety time?
Ch. 13 - Prob. 7DRQCh. 13 - Briefly discuss the requirements for effective...Ch. 13 - Prob. 9DRQCh. 13 - How can the use of MRP contribute to productivity?Ch. 13 - Prob. 11DRQCh. 13 - What is lot sizing. what is its goal, and why is...Ch. 13 - Contrast planned-order receipts and scheduled...Ch. 13 - If seasonal variations are present, is their...Ch. 13 - Prob. 15DRQCh. 13 - What are some unforeseen costs of ERP?Ch. 13 - What trade-offs are involved in the decision to...Ch. 13 - Who in the organization needs to be involved in...Ch. 13 - Prob. 3TSCh. 13 - Prob. 1CTECh. 13 - Give one example of unethical behavior involving...Ch. 13 - a. Given the following diagram for a product,...Ch. 13 - Prob. 2PCh. 13 - Prob. 3PCh. 13 - Eighty units of end item E are needed at the...Ch. 13 - a. One hundred twenty units of end item Z are...Ch. 13 - A table is assembled using three components, as...Ch. 13 - Eighty units of end item X are needed at the...Ch. 13 - Oh No!, Inc., sells three models of radar detector...Ch. 13 - Assume that you are the manager of a shop that...Ch. 13 - Assume that you are the manager of Assembly, Inc....Ch. 13 - Determine material requirements plans for pans N...Ch. 13 - A firm that produces electric golf carts has just...Ch. 13 - Refer to Problem 12. Assume that unusually mild...Ch. 13 - Using the accompanying diagram, do the following:...Ch. 13 - A company that manufactures paving material for...Ch. 13 - Prob. 16PCh. 13 - The MRP Department has a problem. Its computer...Ch. 13 - Develop a material requirements plan for component...Ch. 13 - How many wheels sets should the manager order?Ch. 13 - When should the wheel sets be ordered?Ch. 13 - Prob. 2.1CQCh. 13 - Prob. 1OTQCh. 13 - Prob. 2OTQCh. 13 - Suppose the company has just received an order for...Ch. 13 - Prob. 4OTQCh. 13 - Prob. 5OTQ
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- 4. One unit of A is made of two units of B and one unit of C. B is made of three units of D and one unit of F. C is composed of three units of B, one unit of D, and four units of E. D is made of one unit of E. Item C has a lead time of one week; Items A, B, E, and F have two-week lead times; and Item D has a lead time of three weeks. Lot-for-lot (L4L) lot sizing is used for Items C, E, and F; lots of size 22, 50, and 200 are used for Items A, B, and D, respectively. Items A, B, D, and E have on-hand (beginning) inventories of 10, 15, 122, and 100, respectively; all other items have zero beginning inventories. We are scheduled to receive 10 units of A in Week 3, 40 units of B in Week 7, 50 units of F in Week 5, and 100 units of E in Week 2; there are no other scheduled receipts. If 22 units of A are required in Week 10, use the low-level-coded bill-of-materials (product structure tree) to find the necessary planned order releases for all components. (Leave the cells blank, whenever zero…arrow_forwardOne unit of A is made of one unit of B and one unit of C. B is made of four units of C and one unit each of E and F. C is made of two units of D and one unit of E. E is made of three units of F. Item C has a lead time of one week; Items A, B, E, and F have two-week lead times; and Item D has a lead time of three weeks. Lot-for-lot (L4L) lot sizing is used for Items A, D, and E; lots of size 50, 100, and 50 are used for Items B, C, and F, respectively. Items A, C, D, and E have on-hand (beginning) inventories of 15, 55, 100, and 10, respectively; all other items have zero beginning inventory. We are scheduled to receive 10 units of A in Week 1, 100 units of C in Week 1, and 100 units of D in Week 3; there are no other scheduled receipts.If 50 units of A are required in week 10, use the low-level-coded bill-of-materials (product structure tree) to find the necessary planned-order releases for all components. (Leave the cells blank, whenever zero (0) is required.)arrow_forwardOne unit of A is made of one unit of B and one unit of C. B is made of four units of C and one unit each of E and F. C is made of two units of D and one unit of E. E is made of three units of F. Item C has a lead time of one week; items A, B, E, and F have two-week lead times; and item D has a lead time of three weeks. Lot-for-lot (L4L) lot sizing is used for items A, D, and E; lots of sizes 50, 100, and 50 are used for items B, C, and F, respectively. Items A, C, D, and E have on-hand (beginning) inventories of 20, 50, 100, and 10, respectively; all other items have zero beginning inventory. We are scheduled to receive 10 units of A in week 1, 100 units of C in week 1, and 100 units of D in week 3; there are no other scheduled receipts. If 50 units of A are required in week 10, use the low-level-coded bill-of-materials (product structure tree) to find the necessary planned-order releases for all components.arrow_forward
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