← All CFS Flashcard Decks

Risk Assessment & Mitigation 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 Risk Assessment & Mitigation flashcards as text
  1. Which document provides the primary federal framework for floodplain risk assessment in the United States?

    Answer: FEMA's Multi-Hazard Mitigation Planning guidance (44 CFR Part 201)

    44 CFR Part 201 establishes the requirements for State and local hazard mitigation plans, including flood risk assessment components.

  2. A FIRM shows a Zone AE with a Base Flood Elevation of 312 feet. A structure's lowest floor is at 310.5 feet. What is the structure's freeboard deficit?

    Answer: 1.5 feet

    The BFE is 312 feet and the lowest floor is 310.5 feet, resulting in a 1.5-foot deficit below the BFE.

  3. In risk assessment, 'annualized loss' is best defined as:

    Answer: The expected average loss per year accounting for probability of various flood magnitudes

    Annualized loss integrates losses across all flood frequency events weighted by their probability to express average expected annual cost.

  4. Which mitigation measure is considered 'wet floodproofing'?

    Answer: Allowing floodwaters to enter a structure with flood-resistant materials used below BFE

    Wet floodproofing intentionally allows floodwaters to enter a structure, using flood-damage-resistant materials to minimize harm.

  5. A community wants to reduce flood risk by restoring a wetland in the floodplain. This approach is best classified as:

    Answer: Nature-based solution (green infrastructure)

    Wetland restoration is a nature-based solution that uses natural functions to attenuate floodflows and reduce downstream risk.

  6. The Benefit-Cost Analysis (BCA) tool used by FEMA for mitigation projects determines project viability primarily through:

    Answer: A ratio of project benefits to project costs (BCR ≥ 1.0 required)

    FEMA requires a Benefit-Cost Ratio (BCR) of at least 1.0, meaning benefits must equal or exceed costs, for a project to be eligible for Hazard Mitigation Grant Program funding.

  7. Which flood zone designation indicates a 0.2% annual chance flood hazard area (500-year floodplain) on a FIRM?

    Answer: Zone X (shaded)

    Shaded Zone X on a FIRM represents the 0.2% annual chance (500-year) flood hazard area, which is between the 1% and 0.2% annual chance boundaries.