Practice question

What device is used by inspectors on-site to measure the wet film thickness (WFT) of freshly applied traffic paint?

  1. A digital rebound hammer instrument.
  2. A nuclear density gauge testing meter.
  3. A Pyrometer infrared temperature gun.
  4. A notched stainless steel comb gauge.

Answer: D — A notched stainless steel comb gauge.

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