CA Color Theory & Application 2

Question 1

What is metamerism in the context of automotive paint color matching?

Accepted Answer

A phenomenon where two colors appear to match under one light source but differ under another

Answer

Metamerism occurs when two paint samples appear identical under one light source (e.g., sunlight) but look noticeably different under another (e.g., fluorescent), complicating color match verification.

Question 2

Which paint system uses a pigmented base coat followed by a separate clear coat layer?

Accepted Answer

Two-stage (basecoat/clearcoat) system

Answer

The two-stage basecoat/clearcoat system applies color in the base layer and gloss/protection via a separate clear coat, which is the dominant OEM system today.

Question 3

A vehicle's paint code is most reliably located on which document or location for claims purposes?

Accepted Answer

The manufacturer's paint code label on the vehicle (door jamb, firewall, or trunk)

Answer

OEM paint code labels affixed to the vehicle (commonly in the door jamb, under the hood, or in the trunk) provide the most reliable color reference for accurate matching.

Question 4

In auto body refinishing, what does 'color rendering index' (CRI) measure?

Accepted Answer

How accurately a light source reveals the true colors of objects compared to natural daylight

Answer

CRI measures how faithfully a light source renders colors relative to natural daylight; adjusters and painters use high-CRI lighting to ensure accurate color match evaluation.

Question 5

Which component of a paint formula is primarily responsible for giving the paint its color?

Accepted Answer

Pigment

Answer

Pigments are the colorant particles in paint that absorb and reflect specific wavelengths of light, determining the visible color of the finish.

(CA) Certified Adjuster Designation Practice Test

(CA) Certified Adjuster Designation Practice Test

CA Color Theory & Application 2