CPIM CPIM Master Planning and MRP Questions and Answers 2 — Questions and Answers
Question 1: What is the Master Production Schedule (MPS) responsible for?
- Specifying what end items to produce, in what quantities, and when (Correct answer)
- Allocating machine capacity across all work centers
- Determining safety stock levels for finished goods
- Setting reorder points for raw materials
Correct answer: Specifying what end items to produce, in what quantities, and when
The MPS translates the sales and operations plan into specific production quantities and timing for end items or critical subassemblies.
Question 2: Which concept in master planning refers to the policy of not changing the MPS within a defined short-term window?
- Time fencing (Correct answer)
- Demand time fence
- Planning time fence
- Frozen zone
Correct answer: Time fencing
Time fencing establishes rules about how freely the MPS can be changed within different planning horizons to balance responsiveness and stability.
Question 3: What is 'available-to-promise' (ATP) in a master planning context?
- The uncommitted portion of planned production that can be promised to new customer orders (Correct answer)
- The current on-hand inventory balance
- The total capacity available at a bottleneck work center
- Safety stock reserved for high-priority customers
Correct answer: The uncommitted portion of planned production that can be promised to new customer orders
ATP logic calculates how much of the planned production is not yet allocated to existing orders and is therefore available for new commitments.
Question 4: In master planning, what does a 'rough-cut capacity plan' (RCCP) validate?
- That the MPS is feasible against key resource constraints before running MRP (Correct answer)
- Detailed work center loading across all periods
- The accuracy of the bill of materials
- Supplier lead times for critical components
Correct answer: That the MPS is feasible against key resource constraints before running MRP
RCCP checks the MPS against critical resources (key machines, labor, supplier capacity) to identify major feasibility issues early.
Question 5: What is the 'planning horizon' in the context of the MPS?
- The total time span covered by the master schedule, which must be at least as long as the cumulative lead time (Correct answer)
- The period between two MRP regeneration runs
- The maximum order quantity allowed for a single item
- The time allowed for customer order changes
Correct answer: The total time span covered by the master schedule, which must be at least as long as the cumulative lead time
The planning horizon must extend at least as far as the cumulative lead time to ensure all lower-level components can be planned in time.
Question 6: Which planning approach rebuilds the entire MRP plan from scratch each time it is run?
- Regenerative MRP (Correct answer)
- Net change MRP
- Continuous MRP
- Incremental MRP
Correct answer: Regenerative MRP
Regenerative MRP recalculates all requirements for all items regardless of changes, providing a complete and consistent plan at the cost of processing time.
CPIM CPIM Master Planning and MRP Questions and Answers 2
What is the Master Production Schedule (MPS) responsible for?