Supply Chain Management Quality Control 3 — Questions and Answers
Question 1: In Six Sigma supply chain quality, what does DMAIC stand for?
- Define, Measure, Analyze, Improve, Control (Correct answer)
- Design, Monitor, Assess, Implement, Close
- Detect, Measure, Audit, Inspect, Correct
- Define, Map, Audit, Improve, Check
Correct answer: Define, Measure, Analyze, Improve, Control
DMAIC is the core Six Sigma problem-solving framework: Define, Measure, Analyze, Improve, Control.
Question 2: What is the purpose of a Pre-Production Inspection (PPI) in supply chain quality?
- To inspect finished goods before shipment
- To verify raw materials and readiness before production starts (Correct answer)
- To audit the supplier's quality management system
- To test products at the retail location
Correct answer: To verify raw materials and readiness before production starts
A PPI checks that raw materials, components, and production setup are correct before manufacturing begins.
Question 3: Which certification demonstrates a supplier's quality management system meets international standards?
- ISO 14001
- ISO 9001 (Correct answer)
- OSHA 18001
- AS9100
Correct answer: ISO 9001
ISO 9001 is the international standard for quality management systems applicable across industries.
Question 4: What is a 'containment action' in quality control?
- A long-term fix to eliminate a root cause
- An immediate step to prevent defective product from reaching customers (Correct answer)
- A supplier audit procedure
- A statistical analysis of defect trends
Correct answer: An immediate step to prevent defective product from reaching customers
Containment actions are immediate measures taken to isolate and prevent nonconforming product from escaping to customers.
Question 5: In quality control, what is the difference between 'precision' and 'accuracy'?
- They are the same concept
- Precision is closeness to true value; accuracy is consistency of results
- Accuracy is closeness to true value; precision is consistency of results (Correct answer)
- Precision applies to variables; accuracy applies to attributes
Correct answer: Accuracy is closeness to true value; precision is consistency of results
Accuracy means closeness to the true value, while precision means repeatability or consistency of measurements.
Question 6: What is First Pass Yield (FPY) measuring in a supply chain quality context?
- The percentage of supplier invoices paid on time
- The percentage of units completing a process without rework or rejection (Correct answer)
- The rate at which defects are detected at final inspection
- The proportion of raw materials that pass incoming inspection
Correct answer: The percentage of units completing a process without rework or rejection
FPY measures the fraction of units that flow through a process correctly the first time without any rework or rejection.
Question 7: A fishbone (Ishikawa) diagram is used to:
- Track defect trends over time
- Identify and categorize potential root causes of a problem (Correct answer)
- Rank defects by frequency
- Map the flow of materials in a process
Correct answer: Identify and categorize potential root causes of a problem
The fishbone diagram visually organizes potential causes of a quality problem into categories like Man, Machine, Method, Material.
Supply Chain Management Quality Control 3
In Six Sigma supply chain quality, what does DMAIC stand for?