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Quality Assurance & Improvement Flashcards

7 cards from real CLL 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

  1. In a control chart, a 'run of eight' consecutive points on one side of the centerline indicates:

    Answer: A potential special cause that should be investigated

    A run of eight or more consecutive points on the same side of the centerline is a non-random pattern suggesting a special cause of variation.

  2. Which lean quality improvement approach focuses on reducing variation using statistical methods and follows a data-driven Define-Measure-Analyze-Improve-Control methodology?

    Answer: Six Sigma

    Six Sigma uses the DMAIC methodology and statistical tools to reduce process variation and defects to 3.4 per million opportunities.

  3. During a kaizen event focused on quality, the team discovers a step where operators frequently skip a check due to time pressure. The best lean response is to:

    Answer: Implement a poka-yoke that makes skipping the check impossible

    Poka-yoke (mistake-proofing) physically or mechanically prevents errors from occurring, making it impossible to skip a critical quality step.

  4. What is the primary purpose of a Measurement System Analysis (MSA)?

    Answer: To assess whether the measurement system itself is capable of accurately detecting process variation

    MSA evaluates the accuracy, repeatability, reproducibility, and stability of measurement systems to ensure the data being used for decisions is reliable.

  5. A process with a Cpk of 1.0 means:

    Answer: The process mean is at one of the specification limits

    A Cpk of 1.0 means the process mean is exactly three sigma away from the nearest specification limit, indicating the process is marginally capable but not centered.

  6. In lean quality, 'escaping defects' refers to:

    Answer: Defects that pass through the process and reach the customer

    Escaping defects are quality failures that are not detected internally and ultimately reach the customer, representing the most costly type of quality failure.

  7. Which of the following is a key output of the Analyze phase in DMAIC?

    Answer: Identified and verified root causes of the problem

    The Analyze phase uses data and statistical tools to identify and verify the root causes driving the problem defined in earlier phases.