7 Questions
What factor is added to the illuminance equation to account for light being reflected back into the room?
CU
Which of the following is needed to calculate the Coefficient of Utilization (CU)?
Room cavity ratio
In lighting calculations, what does RCR stand for?
Room Cavity Ratio
If a room has a floor area of 4m x 4m, and the work plane is 1m from the floor level, what is the RCR if the ceiling height is 3m and the width of the room is 4m?
2
What does Ceiling Cavity Height refer to in lighting calculations?
Height from slab to false ceiling level
If the reflectance of wall is 60% and the reflectance of the ceiling is 80%, what coefficient should be calculated for the lighting system?
Coefficient of Utilization
In lighting calculations, what does E represent in the equation E = A Coefficient of Utilization?
Illuminance
Test your knowledge on calculating illuminance and intensity when working with tilted surfaces in the context of lighting design. Explore how to apply correction factors to the formula based on the angle of incidence and exit angles of light rays.
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