COSMETOLOGY STATE BOARD
MIDTERM EXAM WITH QUESTIONS
AND 100% CORRECT ANSWERS 2025
UPDATE.
1. Which bonds in the hair structure are most susceptible to disruption by heat and
moisture?
o Answer: Hydrogen bonds.
2. What is the first step before immersing tools in a disinfectant solution?
o Answer: Clean them thoroughly with warm, soapy water.
3. What is the most effective way to prevent back strain during long working hours?
o Answer: Maintain proper posture and body alignment.
4. What are the key components of maintaining good oral hygiene?
o Answer: Regular brushing, flossing, and biannual dental checkups.
5. What term describes bacteria that are harmless and do not cause disease?
o Answer: Nonpathogenic bacteria.
6. How can pathogenic bacteria be transmitted in a salon setting?
o Answer: Through actions like coughing or spitting.
7. What is the most effective method for eliminating all microorganisms, including
bacterial spores, from tools?
o Answer: Sterilization.
8. How do antiseptics differ from disinfectants?
o Answer: Antiseptics are safe for application on skin, whereas disinfectants are
not.
9. What is the primary use of quaternary ammonium compounds in cosmetology?
o Answer: As a disinfectant.
10. What is the scientific study of hair and its disorders called?
o Answer: Trichology.
11. What are the two primary stages in the life cycle of bacteria?
o Answer: Vegetative and spore-forming stages.
12. How does straight hair appear when viewed in cross-section?
o Answer: Round.
13. What treatment would you recommend for a client suffering from severe dry
dandruff?
o Answer: Regular scalp treatments and gentle, frequent shampoos.
14. What is the term for sudden hair loss in circular patches?
o Answer: Alopecia areata.
15. What is the visible part of the nail called?
o Answer: Nail plate.
, 16. What is a common cause of hangnails?
o Answer: Improper cutting of the cuticle.
17. How can you reassure clients about the cleanliness of your tools?
o Answer: Store tools in a visible disinfectant solution.
18. What is the outermost and thinnest layer of the skin?
o Answer: Epidermis.
19. What is the study of skin, its diseases, and treatments called?
o Answer: Dermatology.
20. What is a steatoma?
o Answer: A subcutaneous tumor of the sebaceous gland.
21. Which agency oversees the proper storage, use, and disposal of chemicals in salons?
o Answer: OSHA (Occupational Safety and Health Administration).
22. Which of the following is an example of a localized infection?
o Answer: Measles.
23. What type of microorganism can only survive by invading and integrating into host
cells?
o Answer: Viruses.
24. What is the primary function of blood in the body?
o Answer: Transporting nutrients, oxygen, and waste products.
25. Which material is a poor conductor of electricity?
o Answer: Glass.
26. What is the correct procedure for applying high-frequency current indirectly?
o Answer: Massage the treatment area while the client holds the electrode.
27. What is the chemical formula for hydrogen peroxide?
o Answer: H₂O₂.
28. What is the primary role of surfactants in hair care products?
o Answer: To remove oils and dirt from the hair.
29. What occurs in the hair shaft when an oxidative tint is applied with hydrogen
peroxide?
o Answer: The cortex swells, allowing pigment molecules to penetrate.
30. Which nail product typically contains ingredients like lanolin, petroleum, and
beeswax?
o Answer: Cuticle cream.
31. What is the ideal location for a successful salon business?
o Answer: A high-traffic area such as a shopping mall.
32. In a corporate structure, what limits an owner’s liability?
o Answer: The amount of their investment in the business.
33. Which type of electrical current is used in scalp and facial treatments for its
germicidal and stimulating effects?
o Answer: Tesla high-frequency current.
34. What is a key skill for a successful cosmetologist besides styling?
o Answer: Salesmanship.
MIDTERM EXAM WITH QUESTIONS
AND 100% CORRECT ANSWERS 2025
UPDATE.
1. Which bonds in the hair structure are most susceptible to disruption by heat and
moisture?
o Answer: Hydrogen bonds.
2. What is the first step before immersing tools in a disinfectant solution?
o Answer: Clean them thoroughly with warm, soapy water.
3. What is the most effective way to prevent back strain during long working hours?
o Answer: Maintain proper posture and body alignment.
4. What are the key components of maintaining good oral hygiene?
o Answer: Regular brushing, flossing, and biannual dental checkups.
5. What term describes bacteria that are harmless and do not cause disease?
o Answer: Nonpathogenic bacteria.
6. How can pathogenic bacteria be transmitted in a salon setting?
o Answer: Through actions like coughing or spitting.
7. What is the most effective method for eliminating all microorganisms, including
bacterial spores, from tools?
o Answer: Sterilization.
8. How do antiseptics differ from disinfectants?
o Answer: Antiseptics are safe for application on skin, whereas disinfectants are
not.
9. What is the primary use of quaternary ammonium compounds in cosmetology?
o Answer: As a disinfectant.
10. What is the scientific study of hair and its disorders called?
o Answer: Trichology.
11. What are the two primary stages in the life cycle of bacteria?
o Answer: Vegetative and spore-forming stages.
12. How does straight hair appear when viewed in cross-section?
o Answer: Round.
13. What treatment would you recommend for a client suffering from severe dry
dandruff?
o Answer: Regular scalp treatments and gentle, frequent shampoos.
14. What is the term for sudden hair loss in circular patches?
o Answer: Alopecia areata.
15. What is the visible part of the nail called?
o Answer: Nail plate.
, 16. What is a common cause of hangnails?
o Answer: Improper cutting of the cuticle.
17. How can you reassure clients about the cleanliness of your tools?
o Answer: Store tools in a visible disinfectant solution.
18. What is the outermost and thinnest layer of the skin?
o Answer: Epidermis.
19. What is the study of skin, its diseases, and treatments called?
o Answer: Dermatology.
20. What is a steatoma?
o Answer: A subcutaneous tumor of the sebaceous gland.
21. Which agency oversees the proper storage, use, and disposal of chemicals in salons?
o Answer: OSHA (Occupational Safety and Health Administration).
22. Which of the following is an example of a localized infection?
o Answer: Measles.
23. What type of microorganism can only survive by invading and integrating into host
cells?
o Answer: Viruses.
24. What is the primary function of blood in the body?
o Answer: Transporting nutrients, oxygen, and waste products.
25. Which material is a poor conductor of electricity?
o Answer: Glass.
26. What is the correct procedure for applying high-frequency current indirectly?
o Answer: Massage the treatment area while the client holds the electrode.
27. What is the chemical formula for hydrogen peroxide?
o Answer: H₂O₂.
28. What is the primary role of surfactants in hair care products?
o Answer: To remove oils and dirt from the hair.
29. What occurs in the hair shaft when an oxidative tint is applied with hydrogen
peroxide?
o Answer: The cortex swells, allowing pigment molecules to penetrate.
30. Which nail product typically contains ingredients like lanolin, petroleum, and
beeswax?
o Answer: Cuticle cream.
31. What is the ideal location for a successful salon business?
o Answer: A high-traffic area such as a shopping mall.
32. In a corporate structure, what limits an owner’s liability?
o Answer: The amount of their investment in the business.
33. Which type of electrical current is used in scalp and facial treatments for its
germicidal and stimulating effects?
o Answer: Tesla high-frequency current.
34. What is a key skill for a successful cosmetologist besides styling?
o Answer: Salesmanship.
