Practice question

What is the standard method for measuring ground resistance in the field?

  1. Using a standard multimeter on the resistance setting
  2. Using a dedicated earth ground resistance tester with the fall-of-potential (3-point) method
  3. Measuring the voltage between the ground rod and a nearby water pipe
  4. Checking the current flow through the ground rod with an ammeter

Answer: B — Using a dedicated earth ground resistance tester with the fall-of-potential (3-point) method

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