Practice question

What is the 'spacing-to-mounting-height ratio' (S/MH) in roadway lighting design?

  1. The ratio of the pole diameter to its height
  2. The ratio of the distance between luminaire poles to the luminaire mounting height, used to evaluate uniformity
  3. The ratio of the conduit size to the pole diameter
  4. The ratio of the lamp wattage to pole height

Answer: B — The ratio of the distance between luminaire poles to the luminaire mounting height, used to evaluate uniformity

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