Quality Assurance & Improvement Flashcards
7 cards from real LMC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Quality Assurance & Improvement flashcards as text
In the DMAIC improvement cycle, during which phase are process capability studies and control charts most commonly established?
Answer: Control
The Control phase establishes monitoring systems like control charts to sustain improvements and detect future deviations.
A supervisor implements a standard that requires operators to check part dimensions every 10 pieces. This practice is an example of:
Answer: In-process inspection (sampling control)
Periodic in-process inspection using sampling helps detect shifts in quality early without inspecting every unit.
Which Lean principle states that quality should be built into the product rather than inspected in at the end?
Answer: Built-in quality (jidoka)
Built-in quality (jidoka) holds that processes should be designed to detect and prevent defects, not rely on final inspection.
A control chart shows several data points alternating consistently above and below the centerline. This pattern is most likely caused by:
Answer: Operator rotation between two differently calibrated machines
A consistent alternating pattern on a control chart often signals systematic differences between two sources, such as operators or machines.
When applying FMEA (Failure Mode and Effects Analysis) in Lean quality improvement, the Risk Priority Number (RPN) is calculated as:
Answer: Severity × Occurrence × Detection
RPN = Severity × Occurrence × Detection; higher RPN values identify failure modes that require priority corrective action.
A Lean quality team is reviewing a process where the customer specification range is narrow but process variation is wide. The best immediate action is to:
Answer: Perform root cause analysis to reduce process variation
When variation exceeds specification limits, root cause analysis and process improvement are required to reduce variation and improve capability.
Which statement best describes the relationship between standardized work and quality improvement in Lean?
Answer: Standardized work establishes the current best method, providing a stable baseline for improvement
Standardized work defines the best known method, ensuring consistency and providing a baseline from which improvements can be measured.