IMSA Roadway Lighting II Practice Questions - IMSA Roadway Lighting Technician Level II Certification Exam

What is the 'Coefficient of Utilization' (CU) in roadway lighting design?

The percentage of electricity used by the lamp The ratio of lumens reaching the roadway surface to the total lumens produced by the luminaire The utility company's billing rate The number of luminaires per circuit

Correct Answer:

The ratio of lumens reaching the roadway surface to the total lumens produced by the luminaire

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