Practice Test Geeks(CPS) Certified Process Specialist Practice Test
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Analysis & Optimization Flashcards

7 cards from real CPS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Analysis & Optimization flashcards as text

  1. A process analyst observes that cycle time varies widely between shifts despite identical procedures. Which analysis technique best identifies the root cause?

    Answer: Multi-vari study

    A multi-vari study isolates sources of variation across time, units, and within-unit factors to pinpoint where variability originates.

  2. When performing a value stream map, which metric directly measures the ratio of value-added time to total lead time?

    Answer: Process cycle efficiency

    Process cycle efficiency (PCE) equals value-added time divided by total lead time, revealing waste proportion in the flow.

  3. A team wants to reduce defects but has limited resources. Which approach ensures effort targets the highest-impact defect categories first?

    Answer: Pareto analysis

    Pareto analysis applies the 80/20 rule to rank defect categories by frequency or cost, directing resources to the vital few causes.

  4. In regression analysis for process optimization, what does an R² value of 0.92 indicate?

    Answer: The model explains 92% of the variation in the output

    R² represents the coefficient of determination, indicating what proportion of output variance is explained by the regression model.

  5. Which lean concept specifically targets eliminating wait time between consecutive process steps?

    Answer: Single-piece flow

    Single-piece flow moves one unit at a time between steps, eliminating batch queuing and the waiting waste it creates.

  6. A CPS practitioner needs to determine whether two process changes together produce an effect greater than either alone. Which experimental design detects this?

    Answer: Factorial design

    Factorial designs test multiple factors simultaneously and can detect interaction effects between factors that one-at-a-time testing misses.

  7. Process capability index Cpk differs from Cp in which critical way?

    Answer: Cpk accounts for process centering while Cp only measures spread

    Cpk incorporates the distance from the process mean to the nearest specification limit, penalizing off-center processes that Cp ignores.