Nevada State Barber Board Test Questions and
Answers 2023/2024
Nevada State Barber Board Practice Exam
Section 1: Sanitation, Disinfection, and Sterilization (25 Questions)
1. What is the highest level of decontamination that destroys all microbial life, including
bacterial spores?
A. Sanitation
B. Disinfection
C. Sterilization ✓
D. Cleaning
2. Which of the following is an example of an acceptable disinfectant?
A. Soap and water
B. Bleach solution (in correct dilution) ✓
C. Rubbing alcohol (70% Isopropyl)
D. Both B and C ✓
3. How often must combs and brushes be disinfected?
A. After each use ✓
B. At the end of the day
C. Once a week
D. When they look dirty
4. An EPA-registered hospital-grade disinfectant is effective against:
A. Bacteria
B. Viruses
C. Fungi
D. All of the above ✓
5. How should you dispose of used, single-use razors?
A. In a regular trash can
B. In a sealed, labeled, puncture-proof sharps container ✓
C. In the biohazard bag with used towels
D. Rinse and reuse them
,6. What is the first step in decontaminating a multi-use instrument (like clippers)?
A. Immersing in disinfectant
B. Wiping with a bleach solution
C. Cleaning with soap and water to remove visible debris ✓
D. Wiping with alcohol
7. An approved disinfectant solution must be changed:
A. Daily or when it becomes contaminated ✓
B. Weekly
C. Only when it looks cloudy
D. Every other day
8. What does the term "aseptic procedure" refer to?
A. A procedure that is painless
B. A procedure that is free of pathogenic microorganisms ✓
C. A procedure that uses strong chemicals
D. A procedure for cutting hair
9. Which item is considered single-use and must be discarded after one service?
A. Metal clipper guards
B. Neck strips ✓
C. Clipper blades
D. Barber shears
10. What type of disinfectant is not recommended for use on metallic surfaces due to
corrosion?
A. Quaternary Ammonium Compounds
B. Bleach (Sodium Hypochlorite) ✓
C. Alcohol
D. Phenolics
11. Headrest covers must be changed:
A. Weekly
B. After each client ✓
C. When they are torn
D. At the end of the day
12. The process that destroys most microorganisms on non-porous surfaces is called:
A. Sterilization
B. Disinfection ✓
,C. Sanitation
D. Antisepsis
13. A wet sanitizer (jar containing disinfectant) is used for:
A. Storing clean combs
B. Immersing tools that have been pre-cleaned ✓
C. Storing used towels
D. Mixing disinfectant solutions
14. Which of the following is a bloodborne pathogen?
A. Hepatitis B (HBV) ✓
B. Influenza
C. Common Cold
D. Tinea Capitis
15. How should a blood spill be handled?
A. Ignore it, it's small.
B. Wear gloves, clean the area, and then disinfect it with an approved tuberculocidal
disinfectant. ✓
C. Wipe it up with a dry towel.
D. Spray it with air to dry it.
16. An autoclave sterilizes tools using:
A. Dry heat
B. Steam under pressure ✓
C. Chemical immersion
D. UV light
17. Antiseptics are used for:
A. Disinfecting countertops
B. Sterilizing instruments
C. Reducing microbes on the skin ✓
D. Cleaning floors
18. Lice and mites are killed by:
A. Dry heat sterilization
B. Proper disinfection of combs and brushes ✓
C. Antiseptic on the scalp
D. Hair conditioner
, 19. A disinfectant's efficacy can be reduced by:
A. Diluting it properly
B. Using it with gloves
C. Contamination with debris or soap ✓
D. Keeping it covered
20. Implements must be pre-cleaned before disinfection to:
A. Save money on disinfectant
B. Remove hair, debris, and bio-burden that interferes with disinfection ✓
C. Make them shine
D. Comply with IRS regulations
21. Tuberculocidal disinfectants are required for surfaces that have come in contact with:
A. Hair
B. Blood or body fluids ✓
C. Water
D. Dandruff
22. UV light cabinets are effective for:
A. Storing disinfected tools ✓
B. Sterilizing tools
C. Disinfecting countertops
D. Cleaning towels
23. The term "pathogenic" means:
A. Helpful
B. Disease-producing ✓
C. Visible
D. Natural
24. Before servicing a new client, you should perform a:
A. Hair analysis
B. Scalp and hair examination ✓
C. Price consultation
D. Style consultation only
25. When using a disinfectant, it is important to:
A. Follow the manufacturer's instructions for dilution and contact time ✓
B. Use it straight from the bottle for maximum strength
Answers 2023/2024
Nevada State Barber Board Practice Exam
Section 1: Sanitation, Disinfection, and Sterilization (25 Questions)
1. What is the highest level of decontamination that destroys all microbial life, including
bacterial spores?
A. Sanitation
B. Disinfection
C. Sterilization ✓
D. Cleaning
2. Which of the following is an example of an acceptable disinfectant?
A. Soap and water
B. Bleach solution (in correct dilution) ✓
C. Rubbing alcohol (70% Isopropyl)
D. Both B and C ✓
3. How often must combs and brushes be disinfected?
A. After each use ✓
B. At the end of the day
C. Once a week
D. When they look dirty
4. An EPA-registered hospital-grade disinfectant is effective against:
A. Bacteria
B. Viruses
C. Fungi
D. All of the above ✓
5. How should you dispose of used, single-use razors?
A. In a regular trash can
B. In a sealed, labeled, puncture-proof sharps container ✓
C. In the biohazard bag with used towels
D. Rinse and reuse them
,6. What is the first step in decontaminating a multi-use instrument (like clippers)?
A. Immersing in disinfectant
B. Wiping with a bleach solution
C. Cleaning with soap and water to remove visible debris ✓
D. Wiping with alcohol
7. An approved disinfectant solution must be changed:
A. Daily or when it becomes contaminated ✓
B. Weekly
C. Only when it looks cloudy
D. Every other day
8. What does the term "aseptic procedure" refer to?
A. A procedure that is painless
B. A procedure that is free of pathogenic microorganisms ✓
C. A procedure that uses strong chemicals
D. A procedure for cutting hair
9. Which item is considered single-use and must be discarded after one service?
A. Metal clipper guards
B. Neck strips ✓
C. Clipper blades
D. Barber shears
10. What type of disinfectant is not recommended for use on metallic surfaces due to
corrosion?
A. Quaternary Ammonium Compounds
B. Bleach (Sodium Hypochlorite) ✓
C. Alcohol
D. Phenolics
11. Headrest covers must be changed:
A. Weekly
B. After each client ✓
C. When they are torn
D. At the end of the day
12. The process that destroys most microorganisms on non-porous surfaces is called:
A. Sterilization
B. Disinfection ✓
,C. Sanitation
D. Antisepsis
13. A wet sanitizer (jar containing disinfectant) is used for:
A. Storing clean combs
B. Immersing tools that have been pre-cleaned ✓
C. Storing used towels
D. Mixing disinfectant solutions
14. Which of the following is a bloodborne pathogen?
A. Hepatitis B (HBV) ✓
B. Influenza
C. Common Cold
D. Tinea Capitis
15. How should a blood spill be handled?
A. Ignore it, it's small.
B. Wear gloves, clean the area, and then disinfect it with an approved tuberculocidal
disinfectant. ✓
C. Wipe it up with a dry towel.
D. Spray it with air to dry it.
16. An autoclave sterilizes tools using:
A. Dry heat
B. Steam under pressure ✓
C. Chemical immersion
D. UV light
17. Antiseptics are used for:
A. Disinfecting countertops
B. Sterilizing instruments
C. Reducing microbes on the skin ✓
D. Cleaning floors
18. Lice and mites are killed by:
A. Dry heat sterilization
B. Proper disinfection of combs and brushes ✓
C. Antiseptic on the scalp
D. Hair conditioner
, 19. A disinfectant's efficacy can be reduced by:
A. Diluting it properly
B. Using it with gloves
C. Contamination with debris or soap ✓
D. Keeping it covered
20. Implements must be pre-cleaned before disinfection to:
A. Save money on disinfectant
B. Remove hair, debris, and bio-burden that interferes with disinfection ✓
C. Make them shine
D. Comply with IRS regulations
21. Tuberculocidal disinfectants are required for surfaces that have come in contact with:
A. Hair
B. Blood or body fluids ✓
C. Water
D. Dandruff
22. UV light cabinets are effective for:
A. Storing disinfected tools ✓
B. Sterilizing tools
C. Disinfecting countertops
D. Cleaning towels
23. The term "pathogenic" means:
A. Helpful
B. Disease-producing ✓
C. Visible
D. Natural
24. Before servicing a new client, you should perform a:
A. Hair analysis
B. Scalp and hair examination ✓
C. Price consultation
D. Style consultation only
25. When using a disinfectant, it is important to:
A. Follow the manufacturer's instructions for dilution and contact time ✓
B. Use it straight from the bottle for maximum strength
