Cosmetology Test Chemical Texture Services 4

Question 1

What is the role of ammonium hydroxide in an alkaline permanent wave solution?

Accepted Answer

It swells the hair shaft and raises the cuticle to allow penetration

Answer

It acts as the neutralizing agent to rebuild bonds

Answer

It provides the oxidizing action that reforms curls

Answer

It lowers the pH to protect the scalp

Question 2

A client has a history of scalp sensitivity. Which type of relaxer would be most appropriate?

Accepted Answer

Guanidine hydroxide (no-lye) relaxer

Answer

Sodium hydroxide (lye) relaxer

Answer

Ammonium thioglycolate relaxer

Answer

Calcium hydroxide relaxer without activator

Question 3

What is 'base relaxer application' used for?

Accepted Answer

Coating the entire scalp with base cream before applying relaxer

Answer

Applying relaxer only to the new growth area

Answer

Using a mild base formula on resistant hair

Answer

Applying a neutralizing base after the chemical service

Question 4

When performing a perm on hair that has been previously highlighted, the cosmetologist should:

Accepted Answer

Perform a careful strand test and use a gentle formula

Answer

Double the waving lotion strength for better penetration

Answer

Skip the neutralizer since highlighted hair is already porous

Answer

Apply the waving lotion only to the roots

Question 5

What is the purpose of using end papers during a perm wrap?

Accepted Answer

To smooth and control hair ends to prevent fishhook bends

Answer

To protect the rods from chemical damage

Answer

To keep waving lotion from dripping onto the face

Answer

To increase tension during the wrapping process

Question 6

Which of the following best describes the 'smoothing' step in a chemical relaxer service?

Accepted Answer

Using the back of a comb or gloved fingers to straighten the hair during processing

Answer

Applying conditioner to detangle before the relaxer

Answer

Combing out the relaxer immediately after application

Answer

Rinsing the hair to remove excess relaxer

Question 7

What chemical process takes place when hydrogen peroxide is used as a neutralizer in a permanent wave?

Accepted Answer

Oxidation — rebuilding disulfide bonds

Answer

Reduction — breaking disulfide bonds

Answer

Hydrolysis — dissolving the protein bonds

Answer

Saponification — converting oils to soaps