Certified Floodplain Manager (CFM) Practice Exam

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What is the NGVD known as today?

  1. The High Tide Datum

  2. The Global Sea Level Standard

  3. The Mean Sea Level Datum of 1929

  4. The International Flood Datum

The correct answer is: The Mean Sea Level Datum of 1929

NGVD stands for National Geodetic Vertical Datum, which is a vertical reference system used to measure elevation. While A, B, and D are all types of vertical datums, they are not the NGVD specifically. A is the reference point for tidal height measurements, B is the global vertical datum used for mapping and navigation, and D is a datum used for flood mapping. C is the Mean Sea Level Datum of 1929, which is the updated name for NGVD after it was revised in 1929. Therefore, C is the correct answer.

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