Practice question

What does 'luminance' measure in roadway lighting?

  1. The total power consumed by the luminaire
  2. The brightness of the roadway surface as perceived by a driver, measured in candelas per square meter
  3. The height of the luminaire pole
  4. The diameter of the lamp

Answer: B — The brightness of the roadway surface as perceived by a driver, measured in candelas per square meter

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Practice more: IMSA Roadway Lighting I Practice Questions - IMSA Roadway Lighting Technician Level I Certification Exam Exam →