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Quality Control & Process Improvement Flashcards

7 cards from real NCT 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 Control & Process Improvement flashcards as text

  1. Which quality management tool is used to visually separate the 'vital few' causes from the 'trivial many' in fleet maintenance defects?

    Answer: Pareto chart

    A Pareto chart ranks causes by frequency or impact, helping prioritize the 20% of causes responsible for 80% of problems.

  2. In a PDCA quality improvement cycle, what is the primary focus of the 'Check' phase?

    Answer: Evaluate results against the expected outcomes

    The Check phase involves measuring and analyzing results to determine whether the implemented change achieved its intended goal.

  3. A fleet manager notices tire replacement intervals vary widely between drivers. Which process improvement technique best identifies the root cause?

    Answer: 5 Whys analysis

    The 5 Whys technique iteratively asks 'why' to drill down to the underlying root cause of a variance problem.

  4. Which metric best measures the effectiveness of a preventive maintenance program in fleet quality control?

    Answer: Ratio of preventive to reactive maintenance work orders

    A high ratio of preventive to reactive maintenance indicates the program is catching issues before they become failures.

  5. ISO 9001 certification in a fleet maintenance operation primarily demonstrates:

    Answer: Processes are documented, monitored, and continuously improved

    ISO 9001 is a quality management system standard focused on documented processes, consistency, and continual improvement.

  6. A control chart shows several consecutive data points on the same side of the centerline. This pattern indicates:

    Answer: A potential special cause requiring investigation

    Seven or more consecutive points on one side of the centerline (a 'run') signal a non-random pattern suggesting a special cause.

  7. Which approach to quality improvement focuses on eliminating waste and non-value-added activities in fleet maintenance workflows?

    Answer: Lean methodology

    Lean methodology targets the elimination of waste (muda) such as unnecessary waiting, motion, and inventory in maintenance processes.

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