Certified Hair Stylist (CHS) — Questions and Answers

Question 1: What type of comb is best suited for detangling wet hair without causing breakage?

Wide-tooth comb (Correct answer)
Teasing comb
Fine-tooth rat-tail comb
Metal tail comb

Correct answer: Wide-tooth comb

A wide-tooth comb glides through wet hair with minimal tension, reducing breakage risk.

Question 2: How does professional liability insurance protect CHS practitioners?

Paying health premiums
Protecting against equipment theft
Covering disaster damage
Covering financial losses from claims of negligence or errors (Correct answer)

Correct answer: Covering financial losses from claims of negligence or errors

This insurance covers financial consequences of claims alleging negligence or mistakes in professional services.

Question 3: Which of the following practices violates proper sanitation protocols in a salon?

Discarding single-use items after each client
Keeping disinfectant solution in a closed container when not in use
Storing clean and soiled towels in separate containers
Using the same comb on multiple clients without disinfecting between uses (Correct answer)

Correct answer: Using the same comb on multiple clients without disinfecting between uses

Reusing combs on multiple clients without disinfection between uses is a cross-contamination violation.

Question 4: A 'C-section' parting technique in haircutting is used to:

Create curved, interior layers that follow the head shape (Correct answer)
Separate the top from the nape
Define a bang section
Isolate the crown from the sides

Correct answer: Create curved, interior layers that follow the head shape

C-section partings follow the curved contour of the head, allowing interior layers to be cut in harmony with the round head shape.

Question 5: Which type of sweat gland is found predominantly in the scalp and is associated with hair follicles?

Merocrine gland
Eccrine gland
Holocrine gland
Apocrine gland (Correct answer)

Correct answer: Apocrine gland

Apocrine glands are located in the scalp, axillae, and groin, and their ducts open into hair follicles rather than directly onto the skin surface.

Question 6: Why is hair pH important in chemical treatments?

To prevent damage
To ensure proper product absorption (Correct answer)
To improve curl pattern
To increase shine

Correct answer: To ensure proper product absorption

Hair pH (potential hydrogen) is crucial because it affects the hair's cuticle layer. Hair is naturally acidic, and most chemical treatments (like coloring, perming, or relaxing) are alkaline, which causes the cuticle to swell and open. Maintaining the correct pH balance during and after treatments ensures the cuticle opens sufficiently for product penetration and then closes properly to seal in the treatment and prevent damage.

Question 7: When sanitizing metal shears between clients, the stylist should:

Place them in a UV sanitizer cabinet for 1 minute
Soak them in 10% bleach solution for 30 minutes
Rinse with hot water only
Wipe with 70% isopropyl alcohol and allow to air dry (Correct answer)

Correct answer: Wipe with 70% isopropyl alcohol and allow to air dry

70% isopropyl alcohol effectively disinfects metal shears quickly; prolonged bleach exposure can corrode the metal and damage the blade.

Question 8: Shears with a convex edge (razor edge) are preferred for:

Point cutting on thick hair
Thinning overly dense hair
Texturizing dry hair only
Slide cutting and precise blunt cuts (Correct answer)

Correct answer: Slide cutting and precise blunt cuts

Convex-edge shears are extremely sharp and smooth, making them ideal for slide cutting and clean blunt cuts with minimal hair damage.

Question 9: Which of the following is NOT a bloodborne pathogen of concern in salons?

Influenza (Correct answer)
HIV
Hepatitis B
Hepatitis C

Correct answer: Influenza

Influenza is an airborne/respiratory pathogen, not a bloodborne pathogen; HIV and Hepatitis B and C are the primary bloodborne concerns in salons.

Question 10: The hypodermis (subcutaneous layer) differs from the dermis primarily because it:

Contains no blood vessels or nerves
Contains only the epidermis stem cells
Is responsible for producing the hair follicle
Is composed mainly of adipose and connective tissue for insulation (Correct answer)

Correct answer: Is composed mainly of adipose and connective tissue for insulation

The hypodermis is composed primarily of adipose (fat) tissue and loose connective tissue that insulate the body, store energy, and anchor the skin to underlying muscle and bone.

Question 11: The stratum granulosum layer of the epidermis is notable for containing which substance?

Melanin granules
Glycogen deposits
Sebum vesicles
Keratohyalin granules (Correct answer)

Correct answer: Keratohyalin granules

The stratum granulosum contains keratohyalin granules that play a critical role in the keratinization process as cells flatten and move toward the skin surface.

Question 12: What is the benefit of scalp massage?

Promotes relaxation
Increases blood flow to hair follicles (Correct answer)
Reduces hair color fading
Reduces dandruff

Correct answer: Increases blood flow to hair follicles

Scalp massage offers several benefits, primarily by stimulating blood circulation to the scalp. Increased blood flow delivers more oxygen and nutrients directly to the hair follicles, which are vital for healthy hair growth and strengthening the hair shaft. This can help create a healthier environment for hair to thrive and potentially reduce hair loss.

Question 13: Which type of brush is specifically designed to smooth hair and add shine while blow-drying?

Paddle brush
Round brush
Boar bristle brush (Correct answer)
Vent brush

Correct answer: Boar bristle brush

Boar bristle brushes distribute natural scalp oils along the hair shaft, adding smoothness and shine during blow-drying.

Question 14: Which skin receptor is primarily responsible for sensing light touch and texture?

Pacinian corpuscle
Free nerve ending
Ruffini ending
Meissner's corpuscle (Correct answer)

Correct answer: Meissner's corpuscle

Meissner's corpuscles, located in the dermal papillae, are sensitive to light touch and fine texture discrimination.

Question 15: When using a flat iron to create beach waves, which technique is most effective?

Rotating the iron 180° while gliding down the section (Correct answer)
Using maximum heat on wet hair
Clamping and pulling straight through
Wrapping hair tightly around the plates

Correct answer: Rotating the iron 180° while gliding down the section

Rotating the flat iron 180° while moving down creates an S-wave pattern that mimics natural beach waves.

Question 16: When executing a 'ponytail elevation cut,' what visual effect does a high ponytail position create when the hair is released?

A blunt one-length perimeter
Uniform length throughout
Short interior layers with a longer perimeter (Correct answer)
Longer interior layers with a shorter perimeter

Correct answer: Short interior layers with a longer perimeter

Cutting a high-pulled ponytail creates shorter lengths in the interior and longer framing layers at the perimeter when hair falls naturally.

Question 17: What is the main risk of applying a thermal protectant spray to soaking-wet hair before blow-drying?

It will cause color fading
It prevents the hair from drying evenly
It dilutes the product reducing protection effectiveness (Correct answer)
It creates unwanted hold

Correct answer: It dilutes the product reducing protection effectiveness

Applying thermal protectant to soaking-wet hair dilutes the protective film, reducing its ability to shield hair from heat damage.

Question 18: Which statement about synthetic hair extensions is accurate?

They can be heat-styled exactly like human hair extensions
They cost significantly more than Remy human hair extensions
They are the most durable and long-lasting extension option available
They cannot be permanently colored and most cannot tolerate high heat styling (Correct answer)

Correct answer: They cannot be permanently colored and most cannot tolerate high heat styling

Synthetic fibers are made from plastic polymers that are damaged by high heat and do not accept permanent hair color, limiting their styling versatility compared to human hair extensions.

Question 19: Which term describes a color formula that contains no ammonia and deposits tone without lightening the natural base?

Oxidative tint
Deposit-only color (Correct answer)
High-lift color
Bleach bath

Correct answer: Deposit-only color

Deposit-only color formulas contain no ammonia and only add tone and depth without lifting the natural hair color.

Question 20: What is the primary function of sebum produced by the sebaceous glands?

To anchor the hair in the follicle
To carry melanin to the hair
To stimulate hair growth
To lubricate and protect the scalp and hair shaft (Correct answer)

Correct answer: To lubricate and protect the scalp and hair shaft

Sebum is a natural oil that lubricates the scalp, conditions the hair shaft, and helps maintain the skin's protective acid mantle.

Question 21: A stylist notices fine, silvery-white scales on a client's scalp that flake off easily and are not accompanied by inflammation. This is most consistent with:

Contact dermatitis
Pityriasis capitis (dandruff) (Correct answer)
Tinea capitis
Psoriasis

Correct answer: Pityriasis capitis (dandruff)

Pityriasis capitis (common dandruff) presents as dry, white flakes without significant redness or inflammation.

Question 22: Which factor most affects how quickly a chemical relaxer processes?

The type of base cream applied
The brand of neutralizing shampoo used
Scalp and room temperature (Correct answer)
The stylist's application speed

Correct answer: Scalp and room temperature

Higher temperatures accelerate the chemical reaction, so scalp heat and ambient temperature significantly impact relaxer processing time.

Question 23: Which blow dryer wattage range is considered professional grade?

1400–2000W (Correct answer)
900–1100W
600–800W
2200–3000W

Correct answer: 1400–2000W

Professional salon blow dryers typically range from 1400 to 2000 watts, providing sufficient airflow and heat to dry hair efficiently.

Question 24: What is 'trichorrhexis nodosa' and which chemical service most commonly causes it?

Cuticle erosion from repeated high-volume developer use
A fungal infection triggered by acidic perm solutions
Brittle swellings along the hair shaft caused by over-processing from chemical relaxers or perms (Correct answer)
Scalp inflammation caused by allergic reaction to hair dye

Correct answer: Brittle swellings along the hair shaft caused by over-processing from chemical relaxers or perms

Trichorrhexis nodosa appears as white nodes on the shaft where the cuticle has been destroyed, often caused by over-processing during chemical relaxing or perming.

Question 25: What does 'shrinkage' refer to in salon inventory management?

A reduction in the size of product containers by the manufacturer
A deliberate reduction in inventory to lower storage costs
The natural evaporation of chemical products over time
Product loss due to theft, damage, or improper use that reduces sellable inventory (Correct answer)

Correct answer: Product loss due to theft, damage, or improper use that reduces sellable inventory

Shrinkage in retail and salon inventory refers to unplanned loss of products through theft, employee misuse, spillage, or expiration.

Question 26: Keratin smoothing treatments should NOT be applied over hair that has been:

Permanently waved within the past 2 weeks (Correct answer)
Highlighted with foils
Colored with semi-permanent dye
Recently deep-conditioned

Correct answer: Permanently waved within the past 2 weeks

Applying a keratin treatment over freshly permed hair can over-process the already chemically softened bonds, causing severe damage or breakage.

Question 27: What is the primary purpose of a clarifying shampoo?

Add moisture to dry hair
Protect hair from heat damage
Remove product buildup and mineral deposits (Correct answer)
Enhance curl definition

Correct answer: Remove product buildup and mineral deposits

Clarifying shampoos contain stronger surfactants that strip accumulated styling products, hard water minerals, and oils from the hair.

Question 28: What is the primary purpose of using different cutting techniques in hair styling?

To increase hair length
To reduce hair damage
To control hair color
To create specific styles, texture, and volume (Correct answer)

Correct answer: To create specific styles, texture, and volume

Hair cutting techniques are fundamental tools for shaping and sculpting hair into desired styles, not just for shortening it. Different techniques like layering, blunt cutting, or point cutting are used to control the hair's movement, add or remove bulk, create texture, and build volume. This allows stylists to customize haircuts to suit individual preferences and hair types.

Question 29: What is the importance of continuing education for CHS professionals in Anatomy of Skin & Hair?

Filling time between engagements
Justifying higher fees
Maintaining current knowledge and adapting to industry changes (Correct answer)
Only for new professionals

Correct answer: Maintaining current knowledge and adapting to industry changes

Continuing education keeps professionals current with developments and best practices while meeting certification requirements.

Question 30: Traction alopecia is caused by:

Hormonal imbalance
Prolonged tension on the hair follicle from tight styles (Correct answer)
Fungal infection of the scalp
Nutritional deficiency

Correct answer: Prolonged tension on the hair follicle from tight styles

Traction alopecia results from chronic mechanical stress on follicles from tight braids, ponytails, or extensions, which can permanently damage the follicle over time.

Question 31: The hair's natural underlying pigment exposed during lightening progresses from black to:

Black → red → orange → yellow → pale yellow
Black → brown → red → orange → yellow → pale yellow (Correct answer)
Black → orange → red → yellow → pale yellow
Black → blue → green → yellow → white

Correct answer: Black → brown → red → orange → yellow → pale yellow

As melanin is decolorized, the underlying pigment reveals in stages: black, brown, red, orange, yellow, and finally pale yellow.

Question 32: Which insurance type is most critical for a salon owner to protect against client injury claims on the premises?

Product liability insurance
Business interruption insurance
General liability insurance (Correct answer)
Workers' compensation insurance

Correct answer: General liability insurance

General liability insurance covers third-party bodily injury and property damage claims, such as a client slipping in the salon.

Question 33: What is the difference between a 'hard part' and a 'natural part' in men's hairstyling?

A hard part is on the right side; a natural part is on the left
Hard parts are for curly hair; natural parts are for straight hair
A hard part uses a razor or clipper to shave a defined line; a natural part follows the hair's growth direction (Correct answer)
A hard part is created with gel; a natural part uses no product

Correct answer: A hard part uses a razor or clipper to shave a defined line; a natural part follows the hair's growth direction

A hard part is shaved or cut into the scalp with a tool to create a sharp, visible line, while a natural part follows the cowlick or natural hair division.

Question 34: A square layer cut is characterized by:

Interior layers that build a square or boxy shape at the crown (Correct answer)
A perfectly round silhouette
All hair cut to the same length at the perimeter
Layers that are longest at the nape

Correct answer: Interior layers that build a square or boxy shape at the crown

Square layering directs hair straight up and cuts it to a flat horizontal plane, creating a boxy shape with fullness at the crown corners.

Question 35: Which of the following best describes the purpose of a state cosmetology board inspection?

To ensure the salon meets health, safety, and licensing standards (Correct answer)
To market the salon to new clients
To certify that stylists are using approved product brands
To audit the salon's financial records

Correct answer: To ensure the salon meets health, safety, and licensing standards

State board inspections verify that salons comply with applicable health, sanitation, safety, and licensing regulations.

Question 36: A clipper guard numbered #4 typically cuts hair to what length?

1/8 inch
3/4 inch
1/2 inch (Correct answer)
1/4 inch

Correct answer: 1/2 inch

Clipper guard #4 leaves hair at 1/2 inch (12 mm), with each guard number representing an additional 1/8 inch of length.

Question 37: What does 'break-even analysis' help a salon owner determine?

The optimal discount percentage for promotional events
The best days of the week to schedule high-revenue services
The maximum number of clients that can be served per day
The exact point at which total revenue equals total costs, with no profit or loss (Correct answer)

Correct answer: The exact point at which total revenue equals total costs, with no profit or loss

Break-even analysis identifies the minimum revenue or number of services needed to cover all costs before the salon starts generating profit.

Question 38: A hairstylist uses a diffuser attachment on a blow dryer primarily to:

Smooth frizz on straight hair
Speed up drying time on thick hair
Add volume at the roots
Dry curly hair while preserving curl definition (Correct answer)

Correct answer: Dry curly hair while preserving curl definition

A diffuser disperses airflow gently to dry curly or wavy hair without disrupting the natural curl pattern.

Question 39: A salon's 'cost of goods sold' (COGS) primarily refers to what?

Monthly rent and utility bills
Marketing and advertising expenses
Employee wages and benefits
The direct cost of products and materials used to deliver services (Correct answer)

Correct answer: The direct cost of products and materials used to deliver services

COGS in a salon represents the cost of hair color, chemicals, and retail products directly consumed in providing services.

Question 40: What is the primary purpose of a salon's employee handbook?

To record daily appointment schedules
To track monthly product inventory levels
To list all client contact information
To document policies, expectations, and procedures for staff (Correct answer)

Correct answer: To document policies, expectations, and procedures for staff

An employee handbook communicates workplace policies, dress codes, scheduling rules, and conduct expectations to all staff.

Question 41: A cosmetologist accidentally nicks a client's ear. What is the first step?

Apply hydrogen peroxide without gloves
Put on gloves, stop the bleeding, and follow exposure control procedures (Correct answer)
Apply a chemical disinfectant directly to the wound
Continue the service and monitor the client

Correct answer: Put on gloves, stop the bleeding, and follow exposure control procedures

When an accidental nick occurs, the stylist must don gloves immediately, stop the bleeding, and follow the salon's exposure control plan for bloodborne pathogen incidents.

Question 42: Which of the following best describes the 'slide cutting' technique?

Removing bulk with thinning shears
Gliding open scissors along the hair strand while applying tension (Correct answer)
Cutting hair with scissors held parallel to the head
Cutting notches into the hair ends

Correct answer: Gliding open scissors along the hair strand while applying tension

Slide cutting involves gliding open shears along the hair shaft to create soft, tapered ends and remove bulk.

Question 43: Androgenetic alopecia (pattern baldness) is primarily triggered by:

Excessive heat styling
Autoimmune antibodies
Dihydrotestosterone (DHT) sensitivity in follicles (Correct answer)
Protein malnutrition

Correct answer: Dihydrotestosterone (DHT) sensitivity in follicles

DHT, a byproduct of testosterone, binds to genetically sensitive follicles and causes them to miniaturize over time, resulting in progressively thinner hair.

Question 44: A salon owner wants to evaluate staff performance. Which metric best measures a stylist's contribution to salon revenue?

Years of experience in the field
Service revenue generated per hour (Correct answer)
Number of social media followers
Number of client complaints filed

Correct answer: Service revenue generated per hour

Service revenue per hour measures how effectively a stylist converts their time into income for the salon.

Question 45: A cosmetologist's license expires and she continues working for three weeks before renewing. Which of the following is most likely?

She simply pays the renewal fee without consequence
She must retake the state board examination
She faces no penalty if she renews within 30 days
She may be fined and the services she performed during that period were unauthorized (Correct answer)

Correct answer: She may be fined and the services she performed during that period were unauthorized

Practicing with an expired license constitutes unlicensed practice; many states impose fines and may require additional steps before reinstatement.

Question 46: The sebaceous gland secretes sebum into which structure?

Blood vessel
Lymph capillary
Hair follicle (Correct answer)
Sweat duct

Correct answer: Hair follicle

Sebaceous glands empty their sebum directly into the hair follicle, lubricating both the hair shaft and the surrounding skin.

Question 47: What is the purpose of a non-compete clause in a salon employment contract?

To restrict a departing employee from working for competing salons or soliciting clients within a defined area and time frame (Correct answer)
To prevent staff from sharing technical skills with other employees
To prevent the employee from earning income from any source while employed
To require employees to purchase the salon's retail products at cost

Correct answer: To restrict a departing employee from working for competing salons or soliciting clients within a defined area and time frame

A non-compete clause protects the salon's business interests by limiting where and how a former employee can work or solicit clients after leaving.

Question 48: What is the normal pH range of healthy hair?

7.5–8.5
6.5–7.5
3.0–4.0
4.5–5.5 (Correct answer)

Correct answer: 4.5–5.5

Healthy hair has a slightly acidic pH of 4.5–5.5, which keeps the cuticle scales flat and closed, resulting in smooth, shiny hair.

Question 49: What does OSHA require salon owners to maintain regarding chemical products used in services?

Safety Data Sheets (SDS) accessible to all employees for every chemical product (Correct answer)
A customer consent form signed before every chemical service
Annual chemical disposal records filed with the EPA
Monthly chemical usage reports submitted to the state board

Correct answer: Safety Data Sheets (SDS) accessible to all employees for every chemical product

OSHA's Hazard Communication Standard requires employers to have Safety Data Sheets on file and accessible for every hazardous chemical used in the workplace.

Question 50: What role do standard operating procedures play in CHS Advanced Styling Techniques?

Ensuring consistency and quality through documented instructions (Correct answer)
Restricting creativity
Creating unnecessary paperwork
Satisfying management only

Correct answer: Ensuring consistency and quality through documented instructions

SOPs provide standardized instructions ensuring consistent quality regardless of which qualified person performs the work.

Certified Hair Stylist (CHS)

The CHS certification exam, administered by AIBM, validates professional competency across six core domains of hair styling including cutting techniques, chemical services, trichology, salon management, and advanced styling. It is designed for working professionals seeking an industry-recognized credential in hair styling.

Questions

90 min

Time Limit

70%

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