California Barber — All Questions

What is the primary difference between sanitation and disinfection?

• a.Sanitation reduces the number of germs to a safe level, while disinfection destroys most pathogens on non-living surfaces✓
• b.They both destroy all microbial life including spores
• c.Sanitation destroys pathogens, while disinfection only removes visible dirt
• d.There is no practical difference between the two terms

Sanitation lowers the level of germs on a surface to a level considered safe, typically by cleaning with soap and water. Disinfection goes further, destroying most disease-causing organisms on hard non-porous surfaces, though it does not necessarily kill bacterial spores.CCR Title 16 §979

Which level of decontamination destroys ALL microbial life, including bacterial spores?

• a.Deodorizing
• b.Sterilization✓
• c.Disinfection
• d.Sanitation

Sterilization is the complete destruction of all microbial life, including highly resistant bacterial spores. It generally requires an autoclave or a comparable process and is not routinely achievable with the liquid disinfectants used in a barbershop.CCR Title 16 §979

Before any implement can be effectively disinfected, it must first be:

• a.Wrapped in a paper towel
• b.Rinsed only in cold running water
• c.Stored in a closed drawer overnight
• d.Thoroughly cleaned to remove all visible debris, hair, and residue✓

Disinfectants cannot penetrate dirt, oils, or hair debris, so an implement must be cleaned with soap and water first. Cleaning removes the organic matter that would otherwise shield microbes and neutralize the disinfectant.CCR Title 16 §979

A disinfectant used on barbering implements should be:

• a.EPA-registered and used according to the manufacturer's label instructions✓
• b.Rubbing alcohol below 50 percent strength
• c.Any household bleach diluted at random
• d.A fragrance-only barbicide substitute

California requires that disinfectants be registered with the U.S. Environmental Protection Agency (EPA) and used exactly as directed on the label. The label specifies dilution, contact time, and the organisms the product is proven to kill.CCR Title 16 §979

The 'contact time' listed on a disinfectant label refers to:

• a.The time needed to mix the solution
• b.The full time an implement must stay wet with the solution to kill the listed organisms✓
• c.How long an implement must dry after disinfection
• d.How long the product may sit unopened on a shelf

Contact time, also called dwell or wet time, is the number of minutes the surface or tool must remain visibly wet with the disinfectant for it to work. Removing the tool early means pathogens may survive, so the manufacturer's stated time must be met.CCR Title 16 §979

Which disinfectant type is commonly used in barbershops for non-electrical implements?

• a.An EPA-registered quaternary ammonium or equivalent hospital-level disinfectant✓
• b.Plain tap water
• c.Petroleum jelly
• d.Hair conditioner

Quaternary ammonium compounds ('quats') and other EPA-registered hospital-grade disinfectants are widely used to immerse combs, shears, and clips. They must be mixed to label strength and replaced when they become cloudy or contaminated.CCR Title 16 §979

How should combs and brushes be handled before being placed in disinfectant solution?

• a.They should be heated in a microwave
• b.They should be placed in the solution still full of hair
• c.Hair and debris should be removed and they should be washed with soap and water✓
• d.They should be wiped with a dry towel only

Loose hair and product must be removed and the tools cleaned with soap and water before immersion. Otherwise organic debris protects microbes and weakens the disinfectant, defeating the process.CCR Title 16 §979

Disinfected implements must be stored in a manner that keeps them:

• a.Clean and dry in a covered, disinfected container or drawer✓
• b.Piled together with soiled tools
• c.Loose in a pocket or apron
• d.Submerged permanently in used solution

Once disinfected and dried, tools must be stored in a clean, covered, and labeled container that protects them from contamination. Mixing them with soiled implements would re-contaminate them.CCR Title 16 §979

A disinfectant solution in a jar should be changed:

• a.Once a year
• b.Only when it runs out
• c.When it becomes visibly dirty or cloudy, as directed by the manufacturer, and at least daily in many products✓
• d.Never, as long as it looks clear

Used disinfectant becomes contaminated with debris that reduces its effectiveness. It must be discarded and replaced when it appears dirty or cloudy, and most labels require fresh solution at least once each day.CCR Title 16 §979

The correct first step when a client is accidentally cut and blood is present is to:

• a.Wipe the blood with a bare hand
• b.Stop the service, put on gloves, and control the bleeding✓
• c.Reuse the same razor on the next client
• d.Continue cutting and clean up later

When an exposure incident occurs, the barber must stop, don single-use gloves, and address the wound following universal precautions. This protects both the client and the barber from bloodborne pathogen exposure.CCR Title 16 §979

After a blood spill on a workstation surface, the area must be:

• a.Left to air dry with no cleaning
• b.Covered with a towel and used again
• c.Sprayed only with water
• d.Cleaned and then disinfected with an EPA-registered disinfectant effective against bloodborne pathogens (tuberculocidal or equivalent)✓

Any surface contaminated with blood must be cleaned of visible matter and then disinfected with a product labeled effective against HIV, HBV, and other bloodborne pathogens. Contaminated disposable materials must be double-bagged or placed in a proper container.CCR Title 16 §979

Items contaminated with blood, such as gauze or tissue, should be:

• a.Left on the counter
• b.Placed in a sealed or double-bagged container and disposed of properly✓
• c.Reused after wiping
• d.Rinsed and returned to the drawer

Blood-soiled disposables are potentially infectious and must be discarded in a closed, leak-proof bag or a designated container. This prevents anyone from contacting the contaminated material.CCR Title 16 §979

'Universal precautions' means treating:

• a.No client as a source of infection
• b.Only clients who appear ill as infectious
• c.Only clients who disclose an illness as infectious
• d.All human blood and body fluids as if they are potentially infectious✓

Universal (or standard) precautions require that every person's blood and body fluids be treated as potentially infectious because carriers cannot be identified by appearance. This drives consistent use of gloves, disinfection, and safe disposal for every client.CCR Title 16 §979

A straight razor with a permanent (non-replaceable) blade used in barbering must be:

• a.Only wiped on a towel between clients
• b.Never disinfected because steel resists germs
• c.Cleaned and disinfected with an EPA-registered disinfectant between every client✓
• d.Disinfected only at the end of the week

A fixed-blade straight razor cannot be discarded, so it must be cleaned and then immersed in or wiped with an appropriate EPA-registered disinfectant after each use. This prevents transfer of bloodborne pathogens between clients.CCR Title 16 §979

Disposable (single-use) razor blades and other single-use items must be:

• a.Stored in the disinfectant jar between clients
• b.Discarded after one use, with blades placed in a puncture-resistant sharps container✓
• c.Disinfected and reused on other clients
• d.Reused on the same client's next visit

Single-use blades cannot be adequately disinfected and are designed to be thrown away after one client. Used blades are sharps and must go into a puncture-proof container to protect against injury and exposure.CCR Title 16 §979

Which of the following is a PROHIBITED practice in a California barbershop?

• a.Using a razor or implement on a client's skin that has an open sore or is broken✓
• b.Cleaning combs before disinfection
• c.Using EPA-registered disinfectant on shears
• d.Storing clean towels in a covered cabinet

Barbers may not perform services on skin that is inflamed, broken, or shows signs of infection; the client should be referred to a physician. Working on such skin risks spreading infection and injuring the client.CCR Title 16 §979

Powders, lotions, and creams should be dispensed in a way that:

• a.Shares one applicator among all clients without cleaning
• b.Avoids contaminating the remaining product, using a clean spatula or shaker rather than fingers✓
• c.Uses the same fingers dipped repeatedly
• d.Returns unused product to the container

Multi-use products must be removed with a clean spatula, pump, or shaker so fingers never touch the bulk supply. Any product removed and not used must be discarded, never returned to the container.CCR Title 16 §979

Which practice best reduces the spread of infection in a barbershop?

• a.Storing dirty tools with clean tools
• b.Reusing neck strips between clients
• c.Skipping handwashing when busy
• d.Washing hands before and after each client✓

Frequent, thorough handwashing is one of the most effective ways to prevent transmission of pathogens. Barbers should wash before and after every client and any time hands become soiled.CCR Title 16 §979

A clean towel or neck strip is used to:

• a.Wipe down the floor
• b.Prevent the shampoo cape from directly touching the client's skin✓
• c.Wrap tools for storage only
• d.Clean the disinfectant jar

A fresh neck strip or towel placed between the cape and the client keeps the cape from touching the neck, so a used cape does not contact bare skin. A clean strip or towel must be used for each client.CCR Title 16 §979

An SDS (Safety Data Sheet) provides information primarily about:

• a.A client's medical history
• b.The hazards, safe handling, and first-aid for a chemical product✓
• c.Haircut pricing
• d.The barber's license expiration

A Safety Data Sheet lists a product's ingredients, health and physical hazards, storage, and emergency measures. Shops must keep SDS documents accessible so staff know how to handle chemicals safely.Cal/OSHA Hazard Communication Standard

Good ventilation in a barbershop is important because it:

• a.Eliminates the need to clean tools
• b.Makes hair grow faster
• c.Increases the strength of disinfectants
• d.Reduces buildup of chemical fumes and airborne particles✓

Proper ventilation removes vapors from products such as disinfectants, aerosols, and chemical services, protecting the respiratory health of workers and clients. It does not replace disinfection or cleaning duties.Cal/OSHA General Industry Safety Orders

Electrical clippers and trimmers that cannot be immersed in liquid should be:

• a.Rinsed under running water
• b.Soaked fully in disinfectant
• c.Cleaned of hair and disinfected with an EPA-registered spray or wipe designed for that use✓
• d.Never cleaned

Because immersing an electrical tool would damage it and create a shock hazard, clipper blades are cleaned of hair and then treated with an approved disinfectant spray or wipe. Detachable blades may also be removed and disinfected separately per manufacturer directions.CCR Title 16 §979

Which is an example of a bloodborne pathogen of concern in a barbershop?

• a.Head lice
• b.Athlete's foot fungus
• c.The common cold virus
• d.Hepatitis B virus (HBV)✓

Hepatitis B and C viruses and HIV are bloodborne pathogens that can be transmitted through contact with infected blood, such as from a razor nick. This is why disinfection of blades and universal precautions are essential.CCR Title 16 §979

When mixing a disinfectant concentrate, the barber should:

• a.Always use more concentrate than directed for extra strength
• b.Dilute it with used solution
• c.Guess the amount
• d.Follow the exact dilution ratio on the manufacturer's label✓

Disinfectants must be mixed to the precise dilution stated on the label. Too weak a mixture fails to kill pathogens, while too strong a mixture wastes product, can damage tools, and may create a health hazard.CCR Title 16 §979

Wet sanitizers or disinfectant containers used for immersing tools must be:

• a.Only deep enough to cover the tips
• b.Left uncovered at all times
• c.Covered and large enough to fully submerge the implements✓
• d.Shared with food items

An immersion container must hold enough solution to completely cover the implements and should be kept covered to reduce evaporation and contamination. Partial immersion leaves part of the tool untreated.CCR Title 16 §979

A client arrives with an obvious contagious skin condition on the scalp. The barber should:

• a.Decline the service and refer the client to a physician✓
• b.Perform the service quickly
• c.Use extra disinfectant and proceed
• d.Ignore it if the client insists

Barbers are not permitted to service a client showing signs of a contagious or infectious condition. The correct action is to politely decline and recommend the client see a physician, protecting other clients and staff.CCR Title 16 §979

The main reason a barber wears single-use gloves during a shave that draws blood is to:

• a.Make the service faster
• b.Create a barrier against contact with blood and bloodborne pathogens✓
• c.Improve grip on the razor only
• d.Keep the hands warm

Gloves form a protective barrier that prevents the barber's skin from contacting the client's blood. They are removed and discarded after the incident, and hands are washed, following universal precautions.CCR Title 16 §979

Which statement about a barber's hands and fingernails is correct for infection control?

• a.Long nails help with sectioning and are encouraged
• b.Hands should be washed frequently and any cuts covered with a bandage✓
• c.Cuts on the hands need no covering
• d.Handwashing is only needed at the start of the day

Clean, well-maintained hands with short nails reduce places for microbes to hide, and open cuts must be covered to protect both barber and client. Frequent handwashing throughout the day is a core infection-control habit.CCR Title 16 §979

Which is the correct order of the decontamination process for a reusable metal implement?

• a.Clean, then disinfect, then store dry in a covered container✓
• b.Rinse only, then reuse immediately
• c.Store, then clean, then use
• d.Disinfect, then clean, then leave wet on the counter

The proper sequence is to first clean the tool to remove debris, then disinfect it for the full contact time, and finally store it dry in a clean covered container. Skipping the cleaning step or storing tools wet undermines the whole process.CCR Title 16 §979

Why must a barber never use a shaving brush or styptic pencil communally on multiple clients?

• a.They are hard to store
• b.They are too expensive
• c.They dull too quickly
• d.They can transfer blood and microbes from client to client✓

Shared items that contact skin or minor nicks, such as a styptic pencil, can carry blood and pathogens between clients. Barbers should use single-use styptic products such as powder or liquid applied with a disposable applicator.CCR Title 16 §979

On a clipper, a longer guard (attachment comb) will:

• a.Remove the blade
• b.Leave the hair longer✓
• c.Cut the hair shorter
• d.Have no effect on length

The guard, or attachment comb, holds the blade farther from the scalp, so a higher-numbered guard leaves more length. Removing the guard cuts closest to the skin.

A 'fade' haircut is characterized by:

• a.A gradual blend from very short at the bottom to longer at the top✓
• b.One uniform length all over
• c.Only scissor work with no clippers
• d.Hair that gets longer toward the neckline

A fade tapers the hair so it transitions seamlessly from skin or very short near the neckline and sides up to a longer length on top. Achieving it requires blending with different guard lengths and clipper-over-comb technique.

The technique of cutting hair by gradually reducing length so no harsh lines show is called:

• a.Sectioning
• b.Tapering✓
• c.Lathering
• d.Stropping

Tapering progressively shortens the hair, usually toward the perimeter, so it lies close and blends smoothly with no visible weight line. It is fundamental to classic barbering and fade work.

Which tool is best suited for detailing edges and cleaning around the ears and neckline?

• a.A trimmer or edger (outliner)✓
• b.A razor strop
• c.A blow dryer
• d.A wide-tooth comb alone

Trimmers, also called edgers or outliners, have a fine, narrow blade ideal for detailing edges, outlining, and cleaning around the ears and neckline. They are used for precision rather than bulk removal.

'Clipper-over-comb' is a technique used to:

• a.Disinfect the clipper
• b.Apply lather
• c.Cut and blend hair that is lifted on a comb, creating a smooth graduation✓
• d.Shave the face

In clipper-over-comb, the comb lifts and holds the hair at an angle while the clipper cuts along the comb, allowing controlled blending similar to scissor-over-comb but faster. It is central to tapering and fading.

When performing a razor cut on hair, the hair should generally be:

• a.Completely dry for best results
• b.Damp, because cutting dry hair with a razor can cause damage and discomfort✓
• c.Soaked in disinfectant
• d.Frozen

Razor cutting is done on wet or damp hair so the blade glides and shears the strand cleanly. Razor-cutting dry hair tends to tear the cuticle, causing frizz, split ends, and client discomfort.

The purpose of a hot towel before a straight-razor shave is to:

• a.Soften the beard hair and open the pores for a closer, more comfortable shave✓
• b.Cool the skin
• c.Disinfect the razor
• d.Remove the need for lather

A hot, moist towel warms the skin and softens the coarse beard hair so the razor cuts with less resistance. It also helps relax the client and prepares the skin, reducing irritation.

Lather applied before a shave serves to:

• a.Replace the need for a sharp razor
• b.Soften and lift the beard hair and lubricate the skin so the razor glides✓
• c.Color the hair
• d.Speed hair growth

Warm lather further softens the hair and provides slip so the razor moves smoothly without dragging. Adequate lubrication is key to a close shave that does not irritate or nick the skin.

During a first-time-over straight-razor shave, the razor is generally moved:

• a.Straight up regardless of growth
• b.With the grain of the hair growth✓
• c.Always against the grain first
• d.In random circles

The first pass of a professional shave follows the direction of hair growth (with the grain) to reduce irritation and ingrown hairs. A second, closer pass may go across or against the grain only after re-lathering.

'Honing' a straight razor refers to:

• a.Soaking it in water
• b.Grinding and setting the cutting edge on a hone or whetstone✓
• c.Bending the blade
• d.Wiping it on a towel

Honing uses an abrasive stone (hone) to grind a fresh, sharp cutting edge onto the razor. It is done periodically when the blade becomes dull, and it actually removes metal to create a new edge.

'Stropping' a straight razor is done to:

• a.Smooth, align, and finish the edge just before shaving✓
• b.Add a disinfectant coating
• c.Sharpen a very dull blade from scratch
• d.Clean hair from the blade

Stropping draws the blade across a leather or canvas strop to true and polish the already-honed edge, aligning the fine metal for a smooth cut. Unlike honing, stropping removes little to no metal and is done right before use.

The correct direction to draw a razor across a strop is:

• a.Sideways with heavy pressure
• b.Only in one spot repeatedly
• c.Edge first, cutting into the leather
• d.Spine first, with the edge trailing, then flip on the spine✓

The razor is stropped spine-leading so the sharp edge trails and is not cut into the leather, and it is turned over on its spine to protect the edge. Cutting edge-first would slice the strop and dull the razor.

Sectioning (parting) the hair before a cut helps the barber to:

• a.Avoid using guards
• b.Disinfect the scalp
• c.Manage the hair in controlled areas for even, accurate cutting✓
• d.Skip the consultation

Dividing the head into clean sections lets the barber work systematically, keeping tension and length consistent across the cut. Well-planned sectioning is the foundation of an even, balanced haircut.

Which head/face shape is generally considered the 'ideal' reference against which others are balanced?

• a.Oval✓
• b.Triangular
• c.Square
• d.Diamond

The oval shape is traditionally used as the reference proportion, and cuts for other face shapes aim to create the illusion of an oval. Understanding face shape guides where to add or reduce volume.

For a client with a round face shape, a barber often aims to:

• a.Keep all hair one length
• b.Create height and length to slim and lengthen the appearance✓
• c.Add width at the sides
• d.Cut it perfectly round

Adding height on top and keeping the sides closer makes a round face appear longer and more oval. Adding width at the sides would emphasize the roundness.

Elevation (projection) in haircutting refers to:

• a.The temperature of the towel
• b.The angle at which hair is lifted from the head before cutting✓
• c.How high the chair is raised
• d.The strength of the shampoo

Elevation is the degree to which a section of hair is held up or out from the scalp before being cut, which controls graduation and layering. Higher elevation produces more layering; lower elevation builds weight.

Cutting with a '0-guard' or no attachment leaves the hair:

• a.About one inch long
• b.Longer than a 3-guard
• c.The same as a 2-guard
• d.Very short, close to the skin✓

With no attachment comb, the clipper blade cuts closest to the scalp, leaving the shortest length. Higher-numbered guards progressively leave more hair.

When shaving, holding the skin taut is important because it:

• a.Sharpens the blade
• b.Warms the skin
• c.Provides a smooth surface so the razor cuts evenly and avoids nicks✓
• d.Makes the lather last longer

Stretching the skin flat gives the razor an even surface and lets it glide without catching folds, reducing the chance of cuts. The free hand stretches the area being shaved throughout the stroke.

The correct blade angle for a straight razor against the skin during a shave is approximately:

• a.Flat against the skin (0 degrees)
• b.Straight up and down
• c.About 30 to 45 degrees✓
• d.90 degrees (perpendicular)

A moderate angle of roughly 30 to 45 degrees lets the edge cut the hair effectively while gliding along the skin. Too steep an angle can cut the skin, while a completely flat blade will not shear the hair.

Which shaving area is generally shaved with extra care because the skin is uneven and bony?

• a.Around the chin and jawline✓
• b.The flat of the cheek
• c.The back of the hand
• d.The center of the forehead

The chin and jaw have curves and bony contours that require careful, well-supported strokes to avoid nicks. Barbers stretch and reposition the skin and use short, controlled strokes in these areas.

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