Manufacturing and Production Quality Control and Assurance 2 — Questions and Answers
Question 1: ISO 9001 is an international standard for:
- Environmental management
- Quality management systems (Correct answer)
- Occupational health and safety
- Energy management
Correct answer: Quality management systems
ISO 9001 specifies requirements for a quality management system (QMS) focused on customer satisfaction and continuous improvement.
Question 2: What does FMEA stand for?
- Factory Maintenance and Equipment Assessment
- Failure Mode and Effects Analysis (Correct answer)
- Functional Manufacturing Efficiency Audit
- Final Material Evaluation Approach
Correct answer: Failure Mode and Effects Analysis
FMEA is a systematic method for identifying potential failure modes, their effects, and risk priority numbers (RPN).
Question 3: The Risk Priority Number (RPN) in FMEA is calculated as:
- Severity + Occurrence + Detection
- Severity × Occurrence × Detection (Correct answer)
- Severity × Occurrence / Detection
- Severity / (Occurrence × Detection)
Correct answer: Severity × Occurrence × Detection
RPN = Severity × Occurrence × Detection, with higher values indicating higher priority failures requiring action.
Question 4: What is the purpose of Acceptance Sampling in quality control?
- To inspect every item in a lot
- To decide whether to accept or reject a lot based on a sample (Correct answer)
- To set machine tolerances
- To train quality inspectors
Correct answer: To decide whether to accept or reject a lot based on a sample
Acceptance sampling uses statistical sampling to decide whether a batch meets quality standards without 100% inspection.
Question 5: A fishbone (Ishikawa) diagram is used to:
- Track defect counts over time
- Visualize potential causes of a quality problem (Correct answer)
- Map value streams
- Show production schedules
Correct answer: Visualize potential causes of a quality problem
The Ishikawa or cause-and-effect diagram organizes potential causes of a problem into categories like Man, Machine, Method, Material.
Question 6: What is the purpose of Gauge R&R studies?
- Calibrate machine cutting speeds
- Assess measurement system variation due to repeatability and reproducibility (Correct answer)
- Rate supplier quality performance
- Rank defect severity levels
Correct answer: Assess measurement system variation due to repeatability and reproducibility
Gauge R&R evaluates how much of total variation comes from the measurement system versus the actual parts.
Manufacturing and Production Quality Control and Assurance 2
ISO 9001 is an international standard for: