CCE Lighting & Material Interactions 3

Question 1

A textile designer notices that a carpet sample looks greener on the showroom floor than in the client's home. The most likely cause is:

Accepted Answer

Different light sources in each environment causing a metameric shift

Answer

Showroom and residential light sources often differ in spectral power distribution, causing metameric colors to shift in appearance.

Question 2

Subsurface scattering is most relevant when predicting the color appearance of:

Accepted Answer

Translucent materials like marble, skin, or wax

Answer

Subsurface scattering occurs when light penetrates a material, scatters within it, and exits at a different point, creating the characteristic glow of translucent materials.

Question 3

In the context of color-critical work environments, D50 is preferred over D65 as a viewing standard primarily because:

Accepted Answer

D50 more closely matches the color temperature of typical indoor printing environments

Answer

D50 (5000K) is the ISO standard for graphic arts viewing because it better matches the typical interior ambient light under which printed material is evaluated.

Question 4

A glossy red tile and a matte red tile with the same colorant appear to have different saturations in bright sunlight. The glossy tile appears:

Accepted Answer

Less saturated than the matte tile due to specular highlights washing out the hue

Answer

Specular highlights on glossy surfaces are near-white and reduce the apparent chroma/saturation of the color, especially under direct bright light.

Question 5

Iridescence in butterfly wings and some coatings is caused by:

Accepted Answer

Thin-film interference where light waves reflect off multiple layers and interact constructively or destructively

Answer

Iridescence results from thin-film optical interference, where the wavelength of light that reflects constructively shifts with viewing angle, changing the apparent color.

(CCE) Certified Color Expert Practice Test

(CCE) Certified Color Expert Practice Test

CCE Lighting & Material Interactions 3