IDFX Lighting and Color Theory 2

Question 1

Which color rendering index (CRI) value is required for retail spaces where accurate color judgment of merchandise is essential?

Accepted Answer

CRI 90 or above

Answer

CRI 60 or above

Answer

CRI 70 or above

Answer

CRI 80 or above

Question 2

The Munsell Color System describes color using three attributes. Which combination is correct?

Accepted Answer

Hue, chroma, value

Answer

Hue, saturation, brightness

Answer

Tint, tone, shade

Answer

Temperature, intensity, luminance

Question 3

In additive color mixing (light), which three primary colors combine to create white light?

Accepted Answer

Red, green, blue

Answer

Red, yellow, blue

Answer

Cyan, magenta, yellow

Answer

Orange, violet, green

Question 4

What is the primary purpose of a photometric report for a luminaire?

Accepted Answer

To document the distribution pattern and output of light from the fixture

Answer

To specify the electrical load of the fixture

Answer

To certify the fixture's UL listing and fire safety rating

Answer

To define the fixture's energy efficiency star rating

Question 5

Simultaneous contrast in color theory refers to which phenomenon?

Accepted Answer

Colors appearing different depending on the surrounding or adjacent colors

Answer

The eye's inability to distinguish colors at low light levels

Answer

Colors shifting in appearance under different light sources

Answer

The tendency for warm colors to appear closer than cool colors

Question 6

Which lighting term describes the ratio of the illuminance at the task area to the illuminance in the surrounding non-task area?

Accepted Answer

Task-to-ambient ratio

Answer

Luminance ratio

Answer

Coefficient of utilization

Answer

Maintained illuminance ratio