Cosmetology Test Review 3 — Questions and Answers
Question 1: In electricity, which term describes the unit of measurement for electrical pressure or force?
- Ampere
- Ohm
- Volt (Correct answer)
- Watt
Correct answer: Volt
Voltage (measured in volts) is the electrical pressure that drives current through a circuit.
Question 2: The galvanic current technique used to soften and emulsify sebum and debris in the follicle is called:
- Anaphoresis
- Cataphoresis
- Desincrustation (Correct answer)
- Iontophoresis
Correct answer: Desincrustation
Desincrustation uses the negative pole of galvanic current with an alkaline solution to deep-cleanse and soften follicle debris.
Question 3: Which federal agency regulates the safety of cosmetic products sold in the United States?
- OSHA
- EPA
- FDA (Correct answer)
- CDC
Correct answer: FDA
The Food and Drug Administration (FDA) oversees the safety and labeling of cosmetic products in the U.S.
Question 4: When neutralizing a perm, the neutralizer's primary chemical action is:
- Breaking disulfide bonds
- Rebuilding disulfide bonds through oxidation (Correct answer)
- Raising the hair's pH to open the cuticle
- Depositing protein into the cortex
Correct answer: Rebuilding disulfide bonds through oxidation
The neutralizer (typically hydrogen peroxide) oxidizes the broken sulfur bonds, re-linking them in the hair's new curled shape.
Question 5: A client asks about a hairline that grows in a circular pattern at the crown. This is called a:
- Cowlick
- Whorl (Correct answer)
- Widow's peak
- Recession
Correct answer: Whorl
A whorl is a growth pattern where hair radiates outward from a central point in a circular or spiral pattern.
Question 6: Which ingredient in nail polish is classified as a potential sensitizer and is being phased out by many manufacturers?
- Ethyl acetate
- Tosylamide/formaldehyde resin (Correct answer)
- Dibutyl phthalate
- Nitrocellulose
Correct answer: Tosylamide/formaldehyde resin
Tosylamide/formaldehyde resin is a common sensitizer in nail polish that can cause allergic reactions and is being removed from many formulas.
Question 7: The term 'porosity' in haircare refers to the hair's ability to:
- Withstand heat styling without damage
- Absorb and retain moisture (Correct answer)
- Reflect light and appear shiny
- Stretch without breaking
Correct answer: Absorb and retain moisture
Hair porosity describes how readily the hair's cuticle layer allows moisture and chemicals to enter and be retained.
Cosmetology Test Review 3
In electricity, which term describes the unit of measurement for electrical pressure or force?