Podcast
Play an AI-generated podcast conversation about this lesson
Questions and Answers
What factor is added to the illuminance equation to account for light being reflected back into the room?
What factor is added to the illuminance equation to account for light being reflected back into the room?
- E
- CU (correct)
- CVR
- RCR
Which of the following is needed to calculate the Coefficient of Utilization (CU)?
Which of the following is needed to calculate the Coefficient of Utilization (CU)?
- Room cavity ratio (correct)
- Candela value
- Luminaire manufacturer details
- Wattage of the light source
In lighting calculations, what does RCR stand for?
In lighting calculations, what does RCR stand for?
- Refractive Crystal Refraction
- Room Ceiling Reflector
- Reflectance Coefficient Ratio
- Room Cavity Ratio (correct)
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?
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?
Signup and view all the answers
What does Ceiling Cavity Height refer to in lighting calculations?
What does Ceiling Cavity Height refer to in lighting calculations?
Signup and view all the answers
If the reflectance of wall is 60% and the reflectance of the ceiling is 80%, what coefficient should be calculated for the lighting system?
If the reflectance of wall is 60% and the reflectance of the ceiling is 80%, what coefficient should be calculated for the lighting system?
Signup and view all the answers
In lighting calculations, what does E represent in the equation E = A Coefficient of Utilization?
In lighting calculations, what does E represent in the equation E = A Coefficient of Utilization?
Signup and view all the answers
