Material Requirements Planning Fundamentals Flashcards
7 cards from real MRP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Material Requirements Planning Fundamentals flashcards as text
A buyer notices that MRP has generated planned orders for a purchased item even though sufficient on-hand stock exists. The most likely cause is:
Answer: Inaccurate inventory records overstating on-hand quantities
If inventory records are inaccurate and overstate on-hand stock, the physical stock may actually be lower, causing unplanned shortages that MRP did not anticipate.
Which metric directly measures the accuracy of inventory records critical to MRP performance?
Answer: Inventory Record Accuracy (IRA)
Inventory Record Accuracy (IRA) measures what percentage of item records match the physical count, and high IRA (typically ≥95%) is essential for valid MRP output.
What is the purpose of 'time buckets' in a traditional MRP planning grid?
Answer: To define the time periods (days, weeks) across which requirements and receipts are planned
Time buckets are the discrete planning periods (commonly weeks) displayed across an MRP planning record, showing requirements, receipts, and on-hand balances over the horizon.
When the same component appears at multiple levels of a BOM, the correct approach in MRP is to:
Answer: Consolidate all demand at its lowest-level code before planning
Low-level coding consolidates all demand for a common part at its lowest BOM level so MRP nets and plans it once rather than creating duplicate orders.
Which scenario best illustrates the concept of 'offsetting' in MRP?
Answer: Scheduling a planned order release earlier than the need date by the item's lead time
Offsetting means the system backs off the planned order release date from the requirement date by the item's lead time to ensure timely arrival.
A planner is reviewing an MRP exception message to 'cancel' a scheduled receipt. This message indicates that:
Answer: The open order is no longer needed because demand has been reduced or eliminated
A cancel exception message means that projected inventory is sufficient without the order, so the open order is now excess and should be cancelled to avoid overstocking.
In the context of MRP, 'bucketed' versus 'bucketless' systems differ primarily in that bucketless systems:
Answer: Plan requirements by specific date rather than grouping them into weekly or daily time buckets
Bucketless MRP assigns requirements and order dates to specific calendar dates rather than aggregating them into weekly or daily time buckets, providing greater scheduling precision.