California Barber — All Questions

A 'guideline' in haircutting is:

• a.A line painted on the floor
• b.The manufacturer's warranty
• c.A rule about pricing
• d.The first section cut to a chosen length that all following sections are matched to✓

The guideline (or guide) is the initial cut length that serves as a reference for every subsequent section, keeping the haircut consistent. Losing the guideline leads to uneven length across the head.

After each shave stroke, the razor should be:

• a.Reheated over a flame
• b.Rinsed in the client's water glass
• c.Wiped clean of lather and hair on a tissue or towel✓
• d.Set down without cleaning

Removing accumulated lather and hair between strokes keeps the blade cutting cleanly and lets the barber see the area. The used tissue is discarded, and the blade itself is disinfected between clients.

Cross-checking a haircut means:

• a.Checking the appointment book
• b.Cutting across the client's forehead
• c.Combing and checking sections in the opposite direction from how they were cut to confirm evenness✓
• d.Verifying the disinfectant strength

Cross-checking involves re-parting and holding the hair in the opposite direction of the original cut to catch uneven spots. It is a quality-control step that ensures a balanced result before finishing.

Texturizing or point cutting is used mainly to:

• a.Disinfect the shears
• b.Remove bulk and soften blunt lines for a more natural finish✓
• c.Add length to the hair
• d.Straighten curly hair chemically

Point cutting and other texturizing techniques remove weight and break up hard perimeter lines, creating movement and a softer look. They shape and finish a cut rather than establishing its overall length.

When using the scissor-over-comb technique, the comb primarily serves to:

• a.Apply the lather
• b.Sharpen the shears
• c.Lift and hold the hair at a set angle so it can be cut evenly and blended✓
• d.Measure the client's head

In scissor-over-comb, the comb elevates and controls the hair while the shears cut along it, producing a smooth blend into shorter areas. It is the shear-based counterpart to clipper-over-comb and is key for tapering.

The technical term for the study of hair is:

• a.Osteology
• b.Trichology✓
• c.Myology
• d.Dermatology

Trichology is the scientific study of hair and its diseases and care. Dermatology is the study of skin, osteology of bones, and myology of muscles.

The part of the hair that projects above the surface of the skin is the:

• a.Bulb
• b.Papilla
• c.Follicle
• d.Hair shaft✓

The hair shaft is the portion of hair extending above the scalp, while the hair root is the portion below the surface within the follicle. The shaft is composed of nonliving keratinized cells.

The three main layers of the hair shaft from outside to inside are:

• a.Bulb, papilla, follicle
• b.Root, shaft, tip
• c.Epidermis, dermis, subcutis
• d.Cuticle, cortex, medulla✓

The outer cuticle protects the strand, the middle cortex gives strength, elasticity, and holds pigment, and the innermost medulla is the core. Most chemical services act on the cuticle and cortex.

Which layer of the hair contains the pigment (melanin) that gives hair its color?

• a.Follicle
• b.Cuticle
• c.Medulla
• d.Cortex✓

The cortex contains melanin granules that determine natural hair color, as well as the bonds responsible for strength and elasticity. Chemical color and perm services work primarily within the cortex.

The small, cone-shaped structure at the base of the follicle that supplies nourishment for hair growth is the:

• a.Cuticle
• b.Dermal papilla✓
• c.Medulla
• d.Arrector pili

The dermal papilla contains the blood supply and nerves that feed the growing hair bulb. Because it is living tissue, damage to the papilla can affect hair growth.

The active growing phase of the hair growth cycle is called:

• a.Telogen
• b.Anagen✓
• c.Keratin
• d.Catagen

Anagen is the phase of active growth during which the hair is being produced, and it can last several years. Catagen is the brief transition phase and telogen is the resting/shedding phase.

The chief protein of which hair is composed is:

• a.Keratin✓
• b.Sebum
• c.Melanin
• d.Collagen

Hair is made mostly of keratin, a fibrous protein also found in skin and nails. Keratin's cross-linked bonds give hair its strength and are the target of chemical texture services.

Dandruff, characterized by flaking of the scalp, is technically known as:

• a.Pityriasis✓
• b.Tinea
• c.Alopecia
• d.Pediculosis

Pityriasis is the medical term for dandruff, the shedding of scalp skin cells. Pediculosis refers to lice, tinea to fungal ringworm infections, and alopecia to hair loss.

Which scalp condition is caused by a fungus and typically appears as red, ring-shaped patches?

• a.Alopecia areata
• b.Tinea (ringworm)✓
• c.Canities
• d.Hypertrichosis

Tinea, commonly called ringworm, is a contagious fungal infection producing round, scaly patches. Because it is infectious, the client must be referred to a physician and not serviced.

Pediculosis capitis is an infestation of the scalp with:

• a.Mites causing scabies only
• b.Fungus
• c.Bacteria
• d.Head lice✓

Pediculosis capitis is infestation by head lice, which are highly contagious. A barber who notices it must not service the client and should refer them for treatment.

A barber notices an open, oozing sore on a client's scalp. The correct action is to:

• a.Not perform the service and refer the client to a physician✓
• b.Cut around it carefully
• c.Shave over it gently
• d.Apply extra product to hide it

Signs of infection, open lesions, or contagious disease are contraindications for service. The barber should decline and refer the client to a physician, protecting the client, the barber, and others.

The technical term for gray hair, caused by loss of natural pigment, is:

• a.Trichoptilosis
• b.Canities✓
• c.Hypertrichosis
• d.Monilethrix

Canities is the medical term for the loss of natural pigment resulting in gray or white hair. It is usually related to age or heredity and is not a contraindication for service.

'Alopecia' refers to:

• a.Excessive oiliness
• b.Ringworm
• c.Split ends
• d.Abnormal hair loss✓

Alopecia is the general term for hair loss, which may be patchy (alopecia areata) or general. It is not contagious, though the underlying cause may warrant a physician's evaluation.

The medical term for split ends is:

• a.Trichoptilosis✓
• b.Canities
• c.Pityriasis
• d.Monilethrix

Trichoptilosis is the technical name for the splitting of hair ends. It can often be improved with conditioning and by trimming the damaged ends.

Sebum, which lubricates the hair and skin, is produced by the:

• a.Arrector pili muscle
• b.Sweat glands
• c.Dermal papilla
• d.Sebaceous (oil) glands✓

The sebaceous glands secrete sebum, an oily substance that lubricates and protects the skin and hair. Overactivity can cause oily scalp conditions, while underactivity leads to dryness.

Hair elasticity, the ability of hair to stretch and return, is determined mainly by bonds in the:

• a.Cortex✓
• b.Sebaceous gland
• c.Cuticle
• d.Medulla

The cortex contains the hydrogen and disulfide bonds that give hair its strength and elasticity. Damaged cortex bonds leave hair weak and prone to breakage.

Which bone forms the forehead?

• a.Frontal✓
• b.Zygomatic
• c.Mandible
• d.Occipital

The frontal bone forms the forehead. The occipital forms the back of the skull, the zygomatic is the cheekbone, and the mandible is the lower jaw.

The only movable bone of the skull, forming the lower jaw, is the:

• a.Temporal
• b.Mandible✓
• c.Nasal
• d.Frontal

The mandible is the lower jawbone and the only bone of the skull that moves, allowing chewing and speech. Barbers reference these bones for face shape and shaving contours.

A large muscle of the neck that a barber works around during a shave and neckline cut is the:

• a.Masseter
• b.Frontalis
• c.Orbicularis oris
• d.Sternocleidomastoid✓

The sternocleidomastoid runs along the side of the neck and rotates and bends the head. Awareness of it helps the barber position the client and shave the neck safely.

The main nerve responsible for sensation in the face is the:

• a.Sciatic nerve
• b.Optic nerve
• c.Trigeminal (fifth cranial) nerve✓
• d.Ulnar nerve

The trigeminal, or fifth cranial nerve, is the chief sensory nerve of the face and controls the muscles of chewing. Its branches carry the sensations felt during facial services.

The main purpose of a shampoo is to:

• a.Cleanse the hair and scalp of dirt, oil, and product buildup✓
• b.Permanently color the hair
• c.Relax the hair
• d.Add permanent curl

Shampoo cleanses by lifting away sebum, dirt, and residue so the hair and scalp are clean for the next service. It is a temporary cleansing product, not a chemical treatment that alters hair structure.

On the pH scale, a reading of 7 is:

• a.Neutral✓
• b.Strongly acidic
• c.Strongly alkaline
• d.Undefined

A pH of 7 is neutral, neither acidic nor alkaline. Values below 7 are acidic and values above 7 are alkaline; hair and skin are naturally slightly acidic.

The natural pH of healthy hair and skin is approximately:

• a.9.0 to 10.0 (alkaline)
• b.7.0 (neutral)
• c.4.5 to 5.5 (slightly acidic)✓
• d.1.0 to 2.0 (strongly acidic)

Hair and skin sit in a mildly acidic range of about 4.5 to 5.5, sometimes called the acid mantle. Acid-balanced products help keep the cuticle closed and the hair healthy.

A conditioner or acid-balanced rinse generally helps to:

• a.Lighten the hair color
• b.Close the cuticle and smooth and detangle the hair✓
• c.Raise the pH strongly
• d.Remove all oil

Conditioners, often slightly acidic, help close the cuticle, add moisture, and reduce tangling after cleansing. This restores smoothness and shine, especially after an alkaline service.

Chemical hair relaxers work by:

• a.Only coating the surface temporarily
• b.Cleansing the scalp
• c.Breaking disulfide bonds to straighten curly or coiled hair✓
• d.Adding curl to straight hair

Relaxers use strong chemicals to break the hair's disulfide bonds, allowing the coil pattern to be smoothed straight before the hair is neutralized. Because they are highly alkaline, they must be applied carefully to avoid scalp burns.

A permanent wave (perm) changes the hair by:

• a.Removing pigment
• b.Breaking and then reforming the disulfide bonds around a rod to create curl✓
• c.Only wetting the hair
• d.Coating the cuticle with wax

A perm uses a waving lotion to break disulfide bonds while the hair is wrapped on rods, then a neutralizer reforms the bonds in the new curled shape. The size of the rod determines the tightness of the curl.

In permanent waving, the neutralizer (fixative) is applied to:

• a.Break the bonds
• b.Reform the broken disulfide bonds and lock in the new curl✓
• c.Add permanent color
• d.Cleanse the scalp

After the waving lotion softens and breaks the bonds, the neutralizer re-bonds the hair in its new curled configuration and stops the chemical action. Skipping or rushing neutralization leaves weak, unstable curls.

A patch (predisposition) test is performed before certain color services to:

• a.Determine curl pattern
• b.Detect a possible allergic reaction to the product✓
• c.Check the hair's length
• d.Measure the pH of the scalp

A patch test applies a small amount of product, often behind the ear or on the inner arm, 24 to 48 hours ahead to see whether the client reacts. It is especially important for aniline-derivative (oxidation) tints that can cause allergic reactions.

Which type of haircolor lasts the longest and involves a chemical change within the hair?

• a.A color-enhancing shampoo
• b.Temporary color
• c.A leave-in conditioner
• d.Permanent (oxidation) color✓

Permanent color uses an oxidizing developer to deposit color within the cortex, producing a lasting change that grows out rather than washing out. Temporary and semi-permanent colors coat or lightly penetrate and fade with shampooing.

Hydrogen peroxide in haircolor acts as the:

• a.Neutralizer for perms
• b.Conditioner
• c.Shampoo
• d.Developer (oxidizing agent) that helps lift and develop color✓

Hydrogen peroxide is the developer that oxidizes the color molecules and lifts natural pigment so the new color can form in the cortex. Its strength (volume) controls how much lift occurs.

A strand test is used during a chemical service to:

• a.Test the disinfectant
• b.Measure scalp temperature
• c.Check how the hair will react and the expected result before treating the whole head✓
• d.Sharpen the razor

A strand test treats a small section first to preview color result, processing time, or perm curl before committing to the full head. It helps prevent over-processing and unexpected outcomes.

Highly alkaline chemical services can damage hair because raising the pH:

• a.Adds pigment
• b.Swells and opens the cuticle, which can weaken the strand if overdone✓
• c.Lowers porosity
• d.Closes the cuticle tightly

Alkaline products lift the cuticle so chemicals can penetrate, but excessive or repeated alkalinity leaves the cuticle raised and the hair porous and weak. Acid-balanced rinses afterward help reclose the cuticle.

Before a relaxer, a protective base or barrier cream is applied to the scalp to:

• a.Speed up processing
• b.Cleanse the hair
• c.Protect the skin and scalp from the caustic chemical✓
• d.Add curl

A protective base cream shields the scalp and hairline from the strong alkaline relaxer, reducing the risk of chemical burns and irritation. It is especially important with stronger, lye-based relaxers.

Hair porosity refers to the hair's ability to:

• a.Resist heat
• b.Stretch and return
• c.Absorb moisture or chemicals✓
• d.Hold a static charge

Porosity is how readily the hair absorbs liquids, which depends on the condition of the cuticle. Highly porous hair takes up chemicals and color quickly, affecting timing and results.

If a client reports itching, redness, or swelling after a patch test, the barber should:

• a.Proceed with a stronger formula
• b.Not perform the color service and advise the client to see a physician if needed✓
• c.Perform the service more quickly
• d.Ignore it and continue

A positive patch-test reaction indicates the client may be allergic, so the service must not be performed with that product. Proceeding could cause a serious allergic reaction, so the client is advised accordingly.

In California, barbering is regulated under the Barbering and Cosmetology Act by the:

• a.Board of Barbering and Cosmetology✓
• b.Department of Motor Vehicles
• c.Federal Trade Commission
• d.Local police department

The California Board of Barbering and Cosmetology, within the Department of Consumer Affairs, licenses and regulates barbers and shops. It enforces the Barbering and Cosmetology Act and its regulations in the Business & Professions Code and CCR Title 16.CA Business & Professions Code

To legally perform barbering services for pay in California, a person must:

• a.Simply own clippers
• b.Hold a current, valid barber license issued by the Board✓
• c.Have five years of unlicensed experience
• d.Have a business card

Practicing barbering for compensation requires a valid license issued by the Board of Barbering and Cosmetology. Working without a license, or with a lapsed one, is a violation subject to enforcement.CA Business & Professions Code

A barber's license and the establishment license must generally be:

• a.Kept at the licensee's home
• b.Displayed or available at the licensed establishment✓
• c.Posted on social media only
• d.Mailed to each client

Licenses are required to be displayed or made available at the place of business so clients and inspectors can verify them. This transparency supports public protection and enforcement.CA Business & Professions Code

The main reason the Board regulates barbering is to:

• a.Protect the health and safety of the public✓
• b.Control advertising
• c.Set haircut prices
• d.Limit the number of barbers

Licensing laws and health and safety regulations exist chiefly to protect consumers from unsafe or unsanitary practices. Standards for disinfection, training, and establishment conditions all serve public protection.CA Business & Professions Code

During an inspection, a Board inspector may check that the establishment:

• a.Charges a set price
• b.Uses a specific brand of shampoo
• c.Has the most expensive equipment
• d.Follows disinfection and sanitation rules and has proper licenses✓

Inspectors verify compliance with sanitation, disinfection, and licensing requirements to ensure a safe environment. They do not dictate brands or prices; their focus is public health and legal operation.CCR Title 16 §979

If a barber changes the address of their establishment, they should:

• a.Only tell clients
• b.Wait until renewal years later
• c.Notify the Board and ensure the new location is properly licensed and inspected✓
• d.Do nothing

Establishment licenses are tied to a specific location, so a move requires notifying the Board and meeting licensing and inspection requirements at the new site. Operating an unlicensed location is a violation.CA Business & Professions Code

A barber license in California must be:

• a.Renewed periodically to remain valid✓
• b.Never renewed
• c.Renewed only once in a lifetime
• d.Renewed weekly

Barber licenses are issued for a set term and must be renewed on schedule, typically every two years, to stay valid. Practicing on an expired license is unlawful.CA Business & Professions Code

Establishment sanitation requirements in California include:

• a.Only a waiting area
• b.Only a clean front window
• c.Only background music
• d.Clean floors and surfaces, proper disinfection of implements, hot and cold running water, and clean linens✓

Barbershops must maintain clean premises, supply hot and cold running water, disinfect tools, and use clean towels and linens for each client. These conditions are inspected to safeguard public health.CCR Title 16 §979

Which is within the legal scope of practice for a licensed barber in California?

• a.Diagnosing skin diseases
• b.Performing surgery on the scalp
• c.Cutting hair, shaving, and trimming beards✓
• d.Prescribing medication

A barber may cut and style hair, shave and trim facial hair, and perform related grooming services. Diagnosing or treating disease is outside the scope of practice and is reserved for medical professionals.CA Business & Professions Code

If a client shows signs of a possible infectious disease, the law and safe practice require the barber to:

• a.Charge extra for the risk
• b.Decline the service and refer the client to a physician✓
• c.Keep no record of the incident
• d.Perform the service anyway

Barbers are prohibited from servicing clients who appear to have an infectious or contagious condition, both to protect others and to comply with health regulations. The appropriate response is to decline and refer the client to a physician.CA Business & Professions Code