Cosmetology PSI theory exam Perms Questions with Complete Solutions, A+

Curl reforming - Loosens overly curly hair, changes tightly curly or coiled hair Cortex - The layer of hair that provides the strength and elasticity of human hair 4.5 and 5.5 - Natural pH of the hair Size of the rod - What determines the size of the curl in a permanent waving process? half off-base placement - The technique of wrapping at a 90 - degree angle or straight out from the center is Croquignole perm technique - basic type of wrapping the hair around a perm rod. Oxygen - A reduction reaction involves either the addition of hydrogen or the removal of: 9.0 and 9.6 - Most cold waves have a pH between Neutralizer - The three separate components of acid waves are permanent waving solution, activator, and: An outside heat source - An endothermic wave is activated by 5 minutes - Permanent wave solution should be rinsed from the hair for a minimum of: acid-balanced shampoo - Hydroxide ions left in the hair after a relaxer can be neutralized using a(n): metal hydroxide relaxers - A type of relaxer contains only one component and is used exactly as it is packaged with no mixing necessary No mix-no lye relaxers - Lithium hydroxide and potassium hydroxide relaxers are often advertised and sold as: Salt bonds - Type of bonds are relatively weak physical side bonds that are results of an attraction between negative and positive electrical charges Loop rods - Which type of rod is also known as a circle rod? 45 degrees - For on-base placement, the hair is wrapped at ____ beyond perpendicular to its base section, and the rod is positioned on its base. acid-balanced waves - These permanent waves process at room temperature raise - Chemical solutions ____ the pH of the hair to an alkaline state. before perming the hair - When should you perform an elasticity test? Could be damaged by a highly alkaline permanent waving solution - Porous hair