CCE CCE Color Measurement & Instrumentation 2

Question 1

In colorimetry, what does the term 'metamerism' describe?

Accepted Answer

Two colors that match under one illuminant but differ under another

Answer

Metamerism occurs when two colors with different spectral compositions appear identical under one illuminant but differ under another.

Question 2

Which CIE standard illuminant is the international standard for color evaluation in graphic arts and proofing environments?

Accepted Answer

Illuminant D50

Answer

CIE Illuminant D50 approximates 5000K daylight and is the standard illuminant used in graphic arts for color viewing and proofing.

Question 3

According to ISO 12647, what ΔE tolerance is considered acceptable for color matches in commercial printing?

Accepted Answer

ΔE < 2

Answer

ISO 12647 specifies that a ΔE of less than 2 (using ΔE 2000) is the acceptable tolerance for color matches in commercial printing.

Question 4

A spectrophotometer reading gives L*=50, a*=0, b*=0. What color does this represent?

Accepted Answer

A neutral mid-tone gray

Answer

In CIE L*a*b*, L*=50 indicates medium lightness, and a*=0, b*=0 indicates no chroma, resulting in a neutral gray.

Question 5

Which proprietary color formula system uses a numbered fan guide to specify spot colors in graphic arts and printing?

Accepted Answer

Pantone Matching System

Answer

The Pantone Matching System (PMS) is the industry-standard system for specifying and communicating spot colors in graphic arts and commercial printing.

(CCE) Certified Color Expert Practice Test

(CCE) Certified Color Expert Practice Test

CCE CCE Color Measurement & Instrumentation 2