NM BARBER STATE BOARD EXAM COMPLETE
GUIDE 200 PRACTICE QUESTIONS +
RATIONALES | NEW MEXICO LAW,
SANITATION & TECHNIQUES | 2026 A+ PREP
Section 1: Scientific Concepts & Anatomy (Questions 1-12)
1. Which layer of the skin contains blood vessels, nerves, and hair
follicles?
A) Epidermis
B) Dermis
C) Subcutaneous tissue
D) Stratum corneum
Rationale: The dermis is the middle layer of skin that contains blood
vessels, nerves, hair follicles, sweat glands, and sebaceous glands. The
epidermis is the outermost layer with no blood supply, while
subcutaneous tissue is the fatty layer beneath the dermis.
Answer: B) Dermis
2. What is the primary function of sebum produced by sebaceous glands?
A) To cool the body through evaporation
B) To lubricate skin and hair, providing a protective barrier
C) To produce vitamin D when exposed to sunlight
D) To regulate body temperature through sweating
Rationale: Sebum is an oily secretion that lubricates the skin and hair,
prevents drying, and provides a protective barrier against bacteria and
fungi. Sweat glands (not sebaceous) regulate temperature.
Answer: B) To lubricate skin and hair, providing a protective barrier
3. Which type of bacteria is commonly associated with skin infections
like boils and abscesses?
A) Streptococcus
,B) Staphylococcus aureus
C) Escherichia coli
D) Mycobacterium tuberculosis
Rationale: Staphylococcus aureus is a common pathogen that causes
skin infections including boils, abscesses, and impetigo. It is a major
concern in barbershops due to potential transmission through
contaminated tools.
Answer: B) Staphylococcus aureus
4. The process of destroying ALL microbial life, including bacterial
spores, is called:
A) Sanitization
B) Disinfection
C) Sterilization
D) Decontamination
Rationale: Sterilization is the highest level of microbial control,
destroying ALL forms of life including highly resistant bacterial spores.
Disinfection kills most pathogens but not spores; sanitization reduces
microbes to safe levels.
Answer: C) Sterilization
5. Which bloodborne pathogen is of greatest concern to barbers due to
potential exposure through cuts?
A) Influenza virus
B) Hepatitis B virus (HBV)
C) Common cold virus
D) Streptococcus bacteria
Rationale: Hepatitis B virus is highly infectious and can survive on
surfaces for up to a week. Barbers risk exposure through nicks or cuts,
making universal precautions and proper disinfection critical.
Answer: B) Hepatitis B virus (HBV)
6. What is the primary purpose of the "universal precautions" standard?
A) To reduce costs of disinfectants
,B) To treat ALL human blood and body fluids as potentially infectious
C) To eliminate the need for gloves in barbershops
D) To allow sharing of tools between clients with proper cleaning
Rationale: Universal precautions, mandated by OSHA, require treating
ALL blood and certain body fluids as if infectious, regardless of the
client's known health status. This protects both workers and clients.
Answer: B) To treat ALL human blood and body fluids as potentially
infectious
7. Which muscle is primarily responsible for closing the jaw during
shaving?
A) Frontalis
B) Masseter
C) Orbicularis oris
D) Sternocleidomastoid
Rationale: The masseter is a powerful muscle of mastication (chewing)
that elevates the mandible to close the jaw. Understanding facial
anatomy helps barbers position clients comfortably during shaving
services.
Answer: B) Masseter
8. What does the acronym "OSHA" stand for?
A) Occupational Safety and Health Administration
B) Office of State Health Agencies
C) Organized Sanitation and Hygiene Association
D) Occupational Standards for Health Assurance
Rationale: OSHA (Occupational Safety and Health Administration) is the
federal agency that sets and enforces workplace safety standards,
including bloodborne pathogen regulations and hazard communication
in barbershops.
Answer: A) Occupational Safety and Health Administration
9. Which type of immunity is provided by vaccination?
A) Natural active immunity
, B) Artificial active immunity
C) Natural passive immunity
D) Artificial passive immunity
Rationale: Artificial active immunity results from vaccination, where a
person is exposed to a weakened or inactivated pathogen to stimulate
their own immune response. This is why Hepatitis B vaccination is
recommended for barbers.
Answer: B) Artificial active immunity
10. The pH scale measures:
A) Temperature of solutions
B) Acidity or alkalinity of a substance
C) Viscosity of liquids
D) Electrical conductivity
Rationale: pH measures hydrogen ion concentration on a scale of 0-14.
Acidic solutions have pH <7, neutral is 7, alkaline is >7. Understanding
pH is crucial for chemical services like relaxers and perms.
Answer: B) Acidity or alkalinity of a substance
11. Which nerve supplies sensation to the scalp and forehead?
A) Facial nerve (CN VII)
B) Trigeminal nerve (CN V)
C) Vagus nerve (CN X)
D) Hypoglossal nerve (CN XII)
Rationale: The trigeminal nerve (cranial nerve V) has three branches
that provide sensory innervation to the face, scalp, and forehead.
Knowledge of nerve pathways helps avoid discomfort during services.
Answer: B) Trigeminal nerve (CN V)
12. What is the primary function of the lymphatic system?
A) Transport oxygen to tissues
B) Filter pathogens and produce immune cells
C) Digest food and absorb nutrients
GUIDE 200 PRACTICE QUESTIONS +
RATIONALES | NEW MEXICO LAW,
SANITATION & TECHNIQUES | 2026 A+ PREP
Section 1: Scientific Concepts & Anatomy (Questions 1-12)
1. Which layer of the skin contains blood vessels, nerves, and hair
follicles?
A) Epidermis
B) Dermis
C) Subcutaneous tissue
D) Stratum corneum
Rationale: The dermis is the middle layer of skin that contains blood
vessels, nerves, hair follicles, sweat glands, and sebaceous glands. The
epidermis is the outermost layer with no blood supply, while
subcutaneous tissue is the fatty layer beneath the dermis.
Answer: B) Dermis
2. What is the primary function of sebum produced by sebaceous glands?
A) To cool the body through evaporation
B) To lubricate skin and hair, providing a protective barrier
C) To produce vitamin D when exposed to sunlight
D) To regulate body temperature through sweating
Rationale: Sebum is an oily secretion that lubricates the skin and hair,
prevents drying, and provides a protective barrier against bacteria and
fungi. Sweat glands (not sebaceous) regulate temperature.
Answer: B) To lubricate skin and hair, providing a protective barrier
3. Which type of bacteria is commonly associated with skin infections
like boils and abscesses?
A) Streptococcus
,B) Staphylococcus aureus
C) Escherichia coli
D) Mycobacterium tuberculosis
Rationale: Staphylococcus aureus is a common pathogen that causes
skin infections including boils, abscesses, and impetigo. It is a major
concern in barbershops due to potential transmission through
contaminated tools.
Answer: B) Staphylococcus aureus
4. The process of destroying ALL microbial life, including bacterial
spores, is called:
A) Sanitization
B) Disinfection
C) Sterilization
D) Decontamination
Rationale: Sterilization is the highest level of microbial control,
destroying ALL forms of life including highly resistant bacterial spores.
Disinfection kills most pathogens but not spores; sanitization reduces
microbes to safe levels.
Answer: C) Sterilization
5. Which bloodborne pathogen is of greatest concern to barbers due to
potential exposure through cuts?
A) Influenza virus
B) Hepatitis B virus (HBV)
C) Common cold virus
D) Streptococcus bacteria
Rationale: Hepatitis B virus is highly infectious and can survive on
surfaces for up to a week. Barbers risk exposure through nicks or cuts,
making universal precautions and proper disinfection critical.
Answer: B) Hepatitis B virus (HBV)
6. What is the primary purpose of the "universal precautions" standard?
A) To reduce costs of disinfectants
,B) To treat ALL human blood and body fluids as potentially infectious
C) To eliminate the need for gloves in barbershops
D) To allow sharing of tools between clients with proper cleaning
Rationale: Universal precautions, mandated by OSHA, require treating
ALL blood and certain body fluids as if infectious, regardless of the
client's known health status. This protects both workers and clients.
Answer: B) To treat ALL human blood and body fluids as potentially
infectious
7. Which muscle is primarily responsible for closing the jaw during
shaving?
A) Frontalis
B) Masseter
C) Orbicularis oris
D) Sternocleidomastoid
Rationale: The masseter is a powerful muscle of mastication (chewing)
that elevates the mandible to close the jaw. Understanding facial
anatomy helps barbers position clients comfortably during shaving
services.
Answer: B) Masseter
8. What does the acronym "OSHA" stand for?
A) Occupational Safety and Health Administration
B) Office of State Health Agencies
C) Organized Sanitation and Hygiene Association
D) Occupational Standards for Health Assurance
Rationale: OSHA (Occupational Safety and Health Administration) is the
federal agency that sets and enforces workplace safety standards,
including bloodborne pathogen regulations and hazard communication
in barbershops.
Answer: A) Occupational Safety and Health Administration
9. Which type of immunity is provided by vaccination?
A) Natural active immunity
, B) Artificial active immunity
C) Natural passive immunity
D) Artificial passive immunity
Rationale: Artificial active immunity results from vaccination, where a
person is exposed to a weakened or inactivated pathogen to stimulate
their own immune response. This is why Hepatitis B vaccination is
recommended for barbers.
Answer: B) Artificial active immunity
10. The pH scale measures:
A) Temperature of solutions
B) Acidity or alkalinity of a substance
C) Viscosity of liquids
D) Electrical conductivity
Rationale: pH measures hydrogen ion concentration on a scale of 0-14.
Acidic solutions have pH <7, neutral is 7, alkaline is >7. Understanding
pH is crucial for chemical services like relaxers and perms.
Answer: B) Acidity or alkalinity of a substance
11. Which nerve supplies sensation to the scalp and forehead?
A) Facial nerve (CN VII)
B) Trigeminal nerve (CN V)
C) Vagus nerve (CN X)
D) Hypoglossal nerve (CN XII)
Rationale: The trigeminal nerve (cranial nerve V) has three branches
that provide sensory innervation to the face, scalp, and forehead.
Knowledge of nerve pathways helps avoid discomfort during services.
Answer: B) Trigeminal nerve (CN V)
12. What is the primary function of the lymphatic system?
A) Transport oxygen to tissues
B) Filter pathogens and produce immune cells
C) Digest food and absorb nutrients
