Quality Control and Assurance Flashcards
6 cards from real Manufacturing and Production practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Quality Control and Assurance flashcards as text
What is the difference between quality control (QC) and quality assurance (QA)?
Answer: QA focuses on process prevention; QC focuses on product inspection
QA is a process-oriented approach to prevent defects, while QC is product-oriented and involves inspecting outputs.
What does SPC stand for in manufacturing quality?
Answer: Statistical Process Control
Statistical Process Control uses statistical methods to monitor and control a manufacturing process.
A control chart with points outside the upper or lower control limits indicates:
Answer: Special cause variation requiring investigation
Points outside control limits signal special cause variation, meaning an assignable, non-random cause exists.
What is Cpk used to measure?
Answer: Process capability relative to specification limits, accounting for centering
Cpk measures how well a centered process fits within specification limits, with higher values indicating better capability.
In quality management, what is a 'specification limit'?
Answer: The acceptable boundary defined by engineering or the customer
Specification limits (USL and LSL) define the acceptable range for a product characteristic as required by the customer or design.
What is a Pareto chart used for in quality analysis?
Answer: Identifying the most significant defect categories by frequency or impact
A Pareto chart ranks defect categories to reveal which few causes account for the majority of problems (80/20 rule).