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Exam 13: Material Requirements Planning Mrp and Erp

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Question 21

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In MRP, system nervousness is caused by:

A) management's attempt to continually respond to minor changes in production requirements.
B) the use of the lot-for-lot approach.
C) management's marking part of the master production schedule as "not to be rescheduled."
D) the use of phantom bills of material.
E) management's attempt to evaluate alternative plans before making a decision.

F) A) and B)
G) A) and C)

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Question 22

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When safety stock is deemed absolutely necessary, the usual policy is to build it into (increase) the inventory requirements within the MRP logic.

A) True
B) False

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Question 23

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Consider the following product structure. Fifteen units of Product A are needed. How many units of B, C, D, and E are needed?

A(n) ________ is a bill of material for components, usually subassemblies, that exist only temporarily; they are never inventoried.

An order for 50 units of Product A and 60 of B has been placed. There are currently 25 units of Product B on hand. Each A requires 2 units of Part C; each B requires 5 units of C. There are 160 units of C available. What are the net requirements for C?

Time fences divide the segment of the master schedule that can be revised from the section that is "not to be rescheduled."

Enterprise resource planning (ERP) :

Low-level coding means that:

Each R requires 3 of component S and 3 of material A; each S requires 3 of part T. The lead time for assembly of R is 1 week. The lead time for the manufacture of S is 2 weeks. The lead time for material A is 1 week. The lead time for the procurement of T is 4 weeks. Construct the time-phased product structure.

A(n) ________ is a list of quantities of components, ingredients, and materials required to make a product.

If the explosion of the bill of material tells MRP how much of each part is needed, how does MRP learn when each of these parts is needed?

The supply-chain systems that result from using ERP in the hospitality industry are called efficient consumer response (ECR) systems.

Which of the following is NOT a key benefit of MRP?

Because MRP provides such a clean structure for dependent demand, it has evolved as the basis for ________.

Which MRP lot-sizing technique should be considered to be the goal (i.e., the technique of choice under ideal conditions) ?

Clancy's Motors has the following demand to meet for custom manufactured fuel injector parts. The holding cost for that item is $2 per month and each setup costs $80. Lead time is 0 months. Calculate the planned order releases using: (a) the EOQ technique, and (b) the POQ technique. What are the costs of each plan, including the holding cost of any inventory left over after month 7?

Firms making many different final products use ________ to facilitate production scheduling.

Consider the following product structure. Forty units of Product A are needed. How many units of B, C, D, E, F, and G are needed?

Reduced inventory levels and faster response to changes in demand are both benefits of MRP.

By convention, the top level in a product structure is designated level 0.