FREE Cosmetology Test Hair Coloring Principles Questions and Answers

Question 1

A client with 50% gray hair desires a permanent hair color application to achieve a vibrant, rich brown.
Which color formulation principle is essential to ensure adequate gray coverage and prevent a dull or muddy result?

Accepted Answer

Add a neutral or natural base color to the formulation.

Answer

Use a color one level lighter than the target shade.

Answer

Increase the developer volume by one level.

Answer

Apply the color to the ends first, then to the roots.

Question 2

Which of the following describes the effect of a 'warm' color tone in hair coloring?

Accepted Answer

It reflects light, making the hair appear brighter and more vibrant.

Answer

It absorbs light, making the hair appear darker and more muted.

Answer

It neutralizes unwanted yellow or orange tones.

Answer

It is typically found in shades like blue, green, and violet.

Question 3

During a hair coloring service, a cosmetologist performs a patch test (predisposition test) behind the ear or on the inner elbow. What is the primary purpose of this test?

Accepted Answer

To check for potential allergic reactions to the color formula.

Answer

To determine the hair's porosity and elasticity.

Answer

To predict the final color result on the hair.

Answer

To assess the hair's ability to absorb moisture.

Question 4

A client with level 7 (medium blonde) hair wants to achieve a level 9 (very light blonde) with a cool tone. Which of the following color concepts is most relevant for achieving this result?

Accepted Answer

An alkaline permanent color is needed to lift the natural pigment.

Answer

Color cannot lift color.

Answer

The use of a warm toner will neutralize unwanted yellow.

Answer

A demi-permanent color is best for significant lift.

Question 5

What is the primary function of hydrogen peroxide (developer) in permanent hair coloring?

Accepted Answer

To act as the oxidizing agent that develops color molecules and lightens natural pigment.

Answer

To swell the hair cuticle and allow color molecules to penetrate.

Answer

To condition the hair and prevent damage during the coloring process.

Answer

To neutralize unwanted warm tones in the hair.

Question 6

When lightening hair, which underlying pigment is typically exposed at a level 8 (light blonde)?

Accepted Answer

Yellow

Answer

Red-orange

Answer

Yellow-orange

Answer

Pale yellow

A client with 50% gray hair desires a permanent hair color application to achieve a vibrant, rich brown.Which color formulation principle is essential to ensure adequate gray coverage and prevent a dull or muddy result?

A client with 50% gray hair desires a permanent hair color application to achieve a vibrant, rich brown.
Which color formulation principle is essential to ensure adequate gray coverage and prevent a dull or muddy result?