BSE Quality Management and Process Improvement 1 — Questions and Answers
Question 1: What does the acronym DMAIC stand for in Six Sigma methodology?
- Define, Measure, Analyze, Improve, Control (Correct answer)
- Design, Model, Assess, Implement, Check
- Define, Monitor, Analyze, Integrate, Correct
- Develop, Measure, Apply, Improve, Close
Correct answer: Define, Measure, Analyze, Improve, Control
DMAIC is the core Six Sigma improvement framework: Define the problem, Measure current performance, Analyze root causes, Improve the process, and Control the new state.
Question 2: Which quality management tool is used to identify the root causes of a problem by categorizing potential causes into categories like People, Process, Equipment, and Environment?
- Pareto Chart
- Control Chart
- Fishbone (Ishikawa) Diagram (Correct answer)
- Scatter Diagram
Correct answer: Fishbone (Ishikawa) Diagram
The fishbone diagram (also called Ishikawa or cause-and-effect diagram) organizes potential causes of a problem into major categories for root cause analysis.
Question 3: According to the Pareto Principle, approximately what percentage of problems are caused by a small percentage of causes?
- 50% of problems come from 50% of causes
- 80% of problems come from 20% of causes (Correct answer)
- 90% of problems come from 10% of causes
- 70% of problems come from 30% of causes
Correct answer: 80% of problems come from 20% of causes
The Pareto Principle (80/20 rule) states that approximately 80% of effects come from 20% of causes, helping teams prioritize improvement efforts.
Question 4: What is the purpose of a Statistical Process Control (SPC) chart?
- To determine the cost of quality defects
- To monitor process performance over time and detect special cause variation (Correct answer)
- To rank defect types by frequency
- To map the steps in a manufacturing process
Correct answer: To monitor process performance over time and detect special cause variation
SPC charts (control charts) track process metrics over time and use statistical control limits to distinguish normal variation from special cause variation requiring action.
Question 5: ISO 9001 is a widely recognized standard for which management system?
- Environmental Management
- Occupational Health and Safety
- Quality Management Systems (Correct answer)
- Information Security Management
Correct answer: Quality Management Systems
ISO 9001 specifies requirements for a quality management system that organizations can use to demonstrate consistent delivery of products and services meeting customer requirements.
Question 6: What is 'process capability' (Cp) a measure of?
- The speed at which a process operates
- The ability of a process to produce output within specification limits (Correct answer)
- The number of steps in a process
- The cost per unit produced by a process
Correct answer: The ability of a process to produce output within specification limits
Process capability (Cp) quantifies how well a process can produce output within customer-defined specification limits relative to the process's natural variation.
BSE Quality Management and Process Improvement 1
What does the acronym DMAIC stand for in Six Sigma methodology?