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(CQE) Course Flashcards

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

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  1. A company tracks customer complaints, field failures, and returned goods. These metrics primarily measure which cost of quality category?

    Answer: External failure

    Customer complaints, field failures, and returns occur after product delivery, making them external failure costs.

  2. Which chart would a quality engineer use to monitor the average of a continuous variable in subgroups of size 5?

    Answer: X̄-R chart

    The X̄-R (Xbar-R) chart is the standard control chart for monitoring subgroup means and ranges when subgroup size is between 2 and 10.

  3. In reliability engineering, MTBF stands for:

    Answer: Mean Time Between Failures

    MTBF (Mean Time Between Failures) is the average time elapsed between one failure and the next for a repairable system.

  4. A supplier delivers a lot of 1,000 parts. Using ANSI/ASQ Z1.4 with an AQL of 1.0% at normal inspection level II, the engineer selects a sample. If the sample contains more defectives than the acceptance number, the lot is:

    Answer: 100% inspected and defectives replaced

    When a lot is rejected under acceptance sampling, the standard practice is 100% inspection of the lot and replacement of nonconforming items.

  5. Which tool is used to systematically evaluate and rank alternative solutions using weighted criteria?

    Answer: Decision matrix (weighted criteria matrix)

    A decision matrix applies weighted scores to each alternative against defined criteria, enabling objective comparison and selection.

  6. In a scatter diagram, a strong negative correlation between two variables means:

    Answer: As one variable increases, the other decreases

    A strong negative correlation (r close to −1) indicates that higher values of one variable consistently correspond to lower values of the other.

  7. A quality management system audit that evaluates compliance against a standard such as ISO 9001 is classified as a:

    Answer: System audit

    A system audit examines the entire quality management system against a standard or documented requirements, rather than a single process or product.