Quality Management & Control Flashcards
6 cards from real DMD 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 Management & Control flashcards as text
What does 'Cpk' measure in manufacturing quality?
Answer: Process capability relative to specification limits and centering
Cpk measures how centered and capable a process is relative to its specification limits, accounting for process mean offset.
Which quality cost category includes scrap, rework, and warranty claims?
Answer: Failure costs
Failure costs (internal and external) include scrap, rework, warranty claims, and customer returns resulting from quality defects.
In digital manufacturing, what is the role of an Automated Optical Inspection (AOI) system?
Answer: To detect surface defects and dimensional errors using cameras and image processing
AOI uses high-resolution cameras and image processing algorithms to automatically detect surface defects, missing components, or dimensional errors.
What is the purpose of a Failure Mode and Effects Analysis (FMEA)?
Answer: To proactively identify potential failure modes and their impact on product or process quality
FMEA systematically evaluates potential failure modes before they occur, assigning Risk Priority Numbers (RPN) to prioritize corrective actions.
Which statistical technique in Six Sigma helps determine which input variables significantly affect a process output?
Answer: Design of Experiments (DOE)
Design of Experiments (DOE) systematically varies input factors to identify which ones have the greatest effect on the process output.
What is the main difference between precision and accuracy in manufacturing measurements?
Answer: Precision is consistency of repeated measurements; accuracy is closeness to the true value
Precision refers to how repeatable a measurement is, while accuracy describes how close measurements are to the actual true value.