Exam 14: Material Requirements Planning Mrp and Erp

A very simple product (A) consists of a base (B) and a casting (C). The base consists of a plate (P) and three fasteners (F). There are currently 30 castings and 100 bases on hand. Final assembly takes one week. The casting has a lead time of three weeks. All other parts have one week lead times. There are no scheduled receipts. All components are lot-for-lot. The MPS requires 80 units of product A in week 5 and 120 in week 8. Produce the MRP for the upcoming eight weeks. Produce a list of all planned order releases.

If a load report (resource requirements profile) shows a work center scheduled beyond capacity

DRP is a time-phased stock-replenishment plan for all levels of a distribution network.

Since MRP is quite detailed in nature, it has no influence on the longer-range, less detailed aggregate planning.

A firm makes numerous models of mowers, garden tractors, and gasoline powered utility vehicles. Some assemblies and parts are common to many end items. To relieve the MPS of performing order releases on these common parts, the firm might choose to use the __________ technique.

While ERP may provide a strategic advantage over competitors, it is so complex that many companies cannot adjust to it.

Describe the tactics for load smoothing in MRP.

If parts and subassemblies common to a variety of products are managed through the supermarket concept, formal order releases for such parts are not necessary.

Material requirements plans specify

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

Describe the role of record accuracy in Wheeled Coach's successful use of MRP. Is this company's experience the exception or the rule? Answer in a well-developed paragraph.

MRP is generally practiced on items with dependent demand.

The economic part period is a fraction of a time bucket.

When safety stock is deemed absolutely necessary, the usual policy is to build it into which category of the MRP logic?

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. a. Construct the time-phased product structure. b. Construct the bill of material.

If safety stock is desired it should be built into which portion of MRP?

A master production schedule contains information about

In general, the lot-for-lot approach should be used whenever economical.

"Phantom bills" are bills of material for subassemblies that do not exist in reality.

The Wagner-Whitin algorithm is the most widely used MRP lot-sizing technique.