Practice Test Geeks(CET) Certified Electronics Technician Practice Test
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Data Quality & Completeness Flashcards

7 cards from real CET 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. In test data management, 'data provenance' refers to:

    Answer: The documented origin, history, and chain of custody of data

    Data provenance documents where data came from, how it was transformed, and who handled it — essential for auditing and verifying data integrity.

  2. A manufacturer specifies a sensor's accuracy as ±0.5% FS. If the full-scale range is 200 V, what is the maximum absolute error at any reading?

    Answer: ±1.0 V

    0.5% of 200 V full scale = 0.005 × 200 = ±1.0 V maximum absolute error regardless of the actual reading.

  3. Which of the following best describes 'metrology' as it applies to electronics testing?

    Answer: The science of measurement, including standards, accuracy, and traceability

    Metrology is the scientific study of measurement, encompassing measurement theory, units, standards, accuracy, and traceability to ensure reliable results.

  4. In a data acquisition system, 'cross-talk' between channels most directly degrades which data quality parameter?

    Answer: Channel isolation and measurement accuracy

    Cross-talk causes signals from one channel to appear in adjacent channels, directly compromising the isolation and accuracy of each channel's measurement.

  5. A test engineer specifies a 6½-digit DMM for a precision measurement. Approximately how many displayable counts does this instrument provide?

    Answer: 1,999,999

    A 6½-digit meter displays up to 1,999,999 counts (the ½ digit can only display 0 or 1), providing very fine measurement resolution.

  6. When documenting test results, which practice best ensures long-term data completeness and reproducibility?

    Answer: Recording all raw measurements, test conditions, equipment IDs, and calibration dates

    Complete documentation including raw data, environmental conditions, equipment identifiers, and calibration status allows future verification and reproducing the test scenario.

  7. In electronics, 'noise floor' of a measurement system directly limits which data quality characteristic?

    Answer: Minimum detectable signal level (sensitivity)

    The noise floor sets the lower bound on signals the system can detect; signals below the noise floor cannot be meaningfully distinguished from noise.