Practice Test Geeks(CFS) Certified Floodplain Surveyor Practice Test
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Quality Control & Process Improvement Flashcards

7 cards from real CFS 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. During a floodplain survey QC review, a field technician discovers that benchmark elevations were not re-verified after equipment was moved to a new setup station. What is the most appropriate corrective action?

    Answer: Re-run all field observations from the original benchmark

    When benchmark elevations are not re-verified after an instrument move, re-running observations from the original benchmark ensures the vertical control chain remains unbroken.

  2. Which statistical tool is most appropriate for identifying whether a floodplain elevation measurement process is in statistical control over time?

    Answer: Control chart (X-bar and R chart)

    Control charts (X-bar and R charts) monitor process mean and variation over time to determine if a measurement process is in statistical control.

  3. A QC audit of FEMA FIRM panel revisions finds that 15% of BFE calculations contain rounding errors. According to continuous process improvement principles, what should be the FIRST step?

    Answer: Identify the root cause of the rounding errors

    Root cause analysis must precede corrective action to ensure the intervention addresses the actual source of defects rather than symptoms.

  4. When performing a QC check on a LiDAR-derived DEM used for floodplain mapping, what is the primary accuracy metric specified by FEMA for ground point verification?

    Answer: Absolute vertical accuracy ≤ 0.15 meter at 95% confidence

    FEMA's Guidelines and Specifications for Flood Hazard Mapping Partners require LiDAR ground data to meet absolute vertical accuracy of ≤ 0.15 m at the 95% confidence level.

  5. A process improvement team notices that LOMR submittals from a particular firm are rejected by FEMA at a rate three times higher than the industry average. Which quality tool best helps visualize the most frequent rejection reasons?

    Answer: Pareto chart

    A Pareto chart ranks defect categories by frequency, allowing teams to focus improvement efforts on the vital few causes responsible for most rejections.

  6. In the context of CFS quality management, what does a 'level of service' document for floodplain survey deliverables primarily establish?

    Answer: The minimum accuracy, completeness, and format standards for deliverables

    A level of service document defines the minimum standards for accuracy, completeness, and format that survey deliverables must meet to be accepted.

  7. A surveying firm implements a peer review process requiring an independent licensed surveyor to check all BFE cross-sections before submittal. This practice is best described as which type of quality control activity?

    Answer: Preventive quality control

    Independent peer review before submittal is a preventive quality control activity because it intercepts errors before they enter the official record.