Electrical Quizes

Which two pieces of information about the sun are needed in order to properly design a building for daylighting?

Orientation to the structure
Path and seasonal position

How much of the light source market today is LED?

70%

Light emitted by a source enclosure

Luminous Flux

Light produced in a given direction

Luminous Intensity

Density of luminance flux on an area

Illuminance

Brightness, or cd/m^2

Luminance

When does our scotopic vision benefit us the most?

night or low light

T/F a large subtended angle occurs where the object is small and is a great distance from the eye

False

In terms of color rendition which statement would describe the perfect life source?

All wavelengths of substantial quanitiy are present

What is the CRI reference for sources with CCT ratings > 5000K?

Daylight

In order for us to "see" the true color of an orange, what must be true about the light source

must have orange wavelengths present

Which light sources discussed in class has the best lamp life?

Induction

Which light source requires a driver to operate?

Solid State

What is the diameter of a PAR 38 metal halide lamp?

4.75

What is the main cause of failure of solid state light source?

Heat

Which light source discussed in class has the worst color rendition?

Metal Halid