APICS APICS Master Scheduling & Capacity Planning 2 — Questions and Answers
Question 1: Which capacity planning technique operates at the most detailed level, considering individual machines and operators?
- Resource Requirements Planning (RRP)
- Rough-Cut Capacity Planning (RCCP)
- Capacity Requirements Planning (CRP) (Correct answer)
- Input/Output Control
Correct answer: Capacity Requirements Planning (CRP)
CRP uses MRP-generated planned and released orders to calculate detailed load at each work center and machine.
Question 2: A 'load profile' in capacity planning represents:
- The number of workers per shift
- The standard hours of work required over time for a given item (Correct answer)
- The machine downtime schedule
- The inventory carrying cost curve
Correct answer: The standard hours of work required over time for a given item
A load profile shows the pattern of capacity requirements over time needed to manufacture an item through its routing.
Question 3: What does 'demonstrated capacity' refer to in production planning?
- The theoretical maximum output of a machine
- The actual output achieved historically by a work center (Correct answer)
- The capacity after adding overtime
- The budgeted production level
Correct answer: The actual output achieved historically by a work center
Demonstrated capacity is based on actual historical output data, reflecting real-world performance rather than theoretical limits.
Question 4: In the context of master scheduling, 'nervousness' refers to:
- Worker stress during high-demand periods
- Frequent and unnecessary changes to planned orders (Correct answer)
- Volatile customer demand signals
- Uncertainty in supplier lead times
Correct answer: Frequent and unnecessary changes to planned orders
MRP nervousness occurs when small changes in demand cause large, cascading changes throughout the planned order schedule.
Question 5: Which scheduling approach assigns jobs to work centers based on the least amount of work remaining?
- First-In-First-Out (FIFO)
- Shortest Processing Time (SPT)
- Least Work Remaining (LWR) (Correct answer)
- Critical Ratio (CR)
Correct answer: Least Work Remaining (LWR)
The Least Work Remaining (LWR) rule prioritizes jobs with the fewest remaining operations or least remaining processing time.
Question 6: The 'critical ratio' dispatching rule calculates priority as:
- Processing time divided by due date
- (Time remaining until due date) divided by (work remaining) (Correct answer)
- Order quantity divided by lead time
- Safety stock divided by demand rate
Correct answer: (Time remaining until due date) divided by (work remaining)
A critical ratio below 1.0 indicates the job is behind schedule, while above 1.0 means it has slack time available.
APICS APICS Master Scheduling & Capacity Planning 2
Which capacity planning technique operates at the most detailed level, considering individual machines and operators?