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TX Cosmetology practice questions

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Question 1Sanitation, Disinfection, and Safety

In a salon, what does sanitation mean?

  1. Removing visible dirt and debris from surfaces Correct answer.
  2. Sealing implements in a closed cabinet
  3. Destroying all microorganisms including spores
  4. Applying an EPA-registered hospital disinfectant

Explanation

Sanitation is the cleaning step: washing with soap and warm water, and using an abrasive cleaner when needed, to remove all visible dirt and debris. It does not kill microorganisms; that is the job of disinfection, and sterilization goes further still. Sanitation must always happen before an item is disinfected.

Question 2Sanitation, Disinfection, and Safety

What is the minimum length of time a cosmetologist should lather the hands and wrists when washing?

  1. 5 seconds
  2. 2 minutes
  3. 10 minutes
  4. 20 seconds Correct answer.

Explanation

Thorough handwashing with soap and warm running water requires about 20 seconds of lathering, cleaning under the nails and between the fingers. This is the single most effective way to prevent the spread of infection between clients. Hands should also be washed before gloving and immediately after gloves are removed.

Question 3Sanitation, Disinfection, and Safety

A disinfectant label states that the product is EPA-registered. What does this indicate?

  1. It may safely be combined with other chemicals
  2. It is approved for use on human skin
  3. It is registered with the federal agency that regulates disinfectant claims Correct answer.
  4. It has been proven to sterilize every implement

Explanation

The Environmental Protection Agency reviews and registers disinfectants, so the registration number shows the manufacturer's efficacy and safety claims have met federal requirements. Salons should use an EPA-registered hospital disinfectant that is bactericidal, virucidal, and fungicidal. Registration does not mean the product is safe for skin or may be mixed with other chemicals.

Question 4Sanitation, Disinfection, and Safety

Which item must be thrown away after use on a single client?

  1. Metal cuticle pusher
  2. Glass disinfectant jar
  3. Autoclave tray
  4. Wooden emery board Correct answer.

Explanation

Porous items such as wooden sticks, emery boards, foam buffers, and cotton cannot be reliably cleaned and disinfected, so they are used once and discarded. Nonporous metal and glass items can be cleaned, disinfected, and reused. Reusing a porous item risks transferring microbes between clients.

Question 5Sanitation, Disinfection, and Safety

What is the first protective step when cleaning up a blood spill?

  1. Put on disposable gloves Correct answer.
  2. Spray disinfectant directly on the hands
  3. Rinse the area with hot water only
  4. Wipe the area quickly with bare hands

Explanation

Blood and body fluids must never be contacted with bare hands; disposable gloves are put on before cleanup begins. The spill is then absorbed, the area cleaned with soap and water, and the surface disinfected according to the label. Hands are washed immediately after gloves are removed.

Question 6Sanitation, Disinfection, and Safety

Which practice is safe when using electrical equipment in a salon?

  1. Pulling the cord to unplug an appliance
  2. Running cords across a walkway
  3. Unplugging equipment by gripping the plug Correct answer.
  4. Using a hair dryer with wet hands

Explanation

Gripping the plug itself when disconnecting protects the cord from fraying and prevents a shock hazard. Cords should be kept away from water and traffic areas, and equipment should be inspected for damage before use. Pulling on the cord stresses the wiring and can expose conductors.

Question 7Sanitation, Disinfection, and Safety

What information does a Safety Data Sheet (SDS) provide?

  1. State licensing exam requirements
  2. Product hazards and safe handling Correct answer.
  3. The salon's appointment schedule
  4. The client's medical history

Explanation

An SDS is supplied by the manufacturer for each chemical product and summarizes its hazards, safe handling, first-aid measures, and spill response. Salons keep these sheets accessible for employees who work with the products. Reviewing the SDS helps staff choose the right protective equipment and respond correctly to accidents.

Question 8Sanitation, Disinfection, and Safety

A disinfectant label specifies a ten-minute contact time. This means implements must be:

  1. Rinsed after ten seconds of soaking
  2. Fully immersed for ten minutes Correct answer.
  3. Wiped once and allowed to air dry
  4. Soaked for ten minutes in plain water

Explanation

Contact time is the full period an item must remain wet and immersed in the disinfectant for the product to work as tested. Removing implements early allows surviving microorganisms to remain on the surface. The label's contact time, dilution, and temperature must all be followed.

Question 9Sanitation, Disinfection, and Safety

Which statement best describes disinfection?

  1. Removes only visible dirt and oil
  2. Freshens the air in the treatment room
  3. Destroys all microbial life including spores
  4. Kills most microbes but not spores Correct answer.

Explanation

Disinfection destroys or reduces most pathogenic microorganisms on hard, nonporous surfaces, but bacterial spores generally survive. Sterilization is the stronger process that destroys all microbial life, including spores. Cleaning, which removes visible debris, comes before either process.

Question 10Sanitation, Disinfection, and Safety

What must be done to an implement before it goes into the disinfectant solution?

  1. Sprayed with air freshener
  2. Washed, rinsed, and dried Correct answer.
  3. Rinsed in hot water and left wet
  4. Wiped once with a dry towel

Explanation

Implements must be scrubbed with soap and warm water, rinsed, and thoroughly dried before immersion, because organic residue and water dilute the disinfectant. Skipping this step lets debris shield microbes from the chemical. Only clean, dry implements go into the disinfecting jar.

Question 11Sanitation, Disinfection, and Safety

Why must a foam nail buffer be discarded rather than disinfected?

  1. Disinfectant dissolves the foam
  2. State law bans foam buffers
  3. Its porous surface shelters microbes Correct answer.
  4. Buffers cost too little to soak

Explanation

Porous materials absorb moisture and trap microorganisms in spaces the disinfectant cannot penetrate, so they cannot be reliably disinfected. Items such as foam buffers, wooden sticks, and cotton are therefore used once and discarded. Nonporous items are the ones that can be cleaned and disinfected for reuse.

Question 12Sanitation, Disinfection, and Safety

Quaternary ammonium compounds are best described as:

  1. Low-toxicity surface disinfectants Correct answer.
  2. Spore-killing sterilants
  3. Fumigants released into the air
  4. Corrosive acids for metal tools

Explanation

Quats are a large group of disinfectants that are generally non-toxic, non-corrosive, and well suited to nonporous salon surfaces and implements. They are not effective against bacterial spores and are not sterilants. Phenols are the group that is more corrosive and harsher on skin.

Question 13Sanitation, Disinfection, and Safety

What is the main hazard of phenol disinfectants?

  1. They can burn skin and damage eyes Correct answer.
  2. They evaporate into harmless vapor
  3. They are flammable at room temperature
  4. They sterilize by steam pressure

Explanation

Phenols are caustic and can injure skin, eyes, and mucous membranes, so gloves and eye protection are needed and the product must be used only as labeled. They are effective against a broad range of organisms, including tuberculosis bacteria, but that potency comes with handling risks. Containers should be kept closed and away from skin contact.

Question 14Sanitation, Disinfection, and Safety

For a blood spill on a hard floor, household bleach is commonly diluted at:

  1. 1 part bleach to 100 parts water
  2. 1 part bleach to 10 parts water Correct answer.
  3. No dilution; full strength
  4. 1 part bleach to 1 part water

Explanation

A roughly 1:10 dilution of household bleach in water is the standard concentration for disinfecting blood-contaminated hard surfaces after the spill has been absorbed and cleaned. Stronger solutions do not improve results and increase fume and corrosion hazards. The area is left wet for the required contact time.

Question 15Sanitation, Disinfection, and Safety

Universal precautions mean that the cosmetologist:

  1. Treats all blood and body fluids as infectious Correct answer.
  2. Disinfects tools once at the end of the day
  3. Wears gloves only if the client asks
  4. Treats only blood as infectious

Explanation

Under universal precautions every client's blood and body fluids are handled as if they carry infectious organisms, because a carrier may show no symptoms. This drives consistent glove use, handwashing, and tool processing for every service. Disinfection must occur after each client, not once a day.

Question 16Sanitation, Disinfection, and Safety

An autoclave destroys microorganisms using:

  1. Low-pressure chemical vapor
  2. Steam under pressure Correct answer.
  3. Dry heat at room temperature
  4. Ultraviolet light

Explanation

An autoclave uses pressurized steam at high temperature to sterilize implements, killing bacteria, viruses, fungi, and spores. Items must first be cleaned and dried, and the chamber must not be overloaded. Ultraviolet cabinets and ultrasonic units are not substitutes for sterilization.

Question 17Sanitation, Disinfection, and Safety

What is the purpose of an ultrasonic cleaner?

  1. Loosen debris before soaking Correct answer.
  2. Sharpen metal implements
  3. Sterilize implements completely
  4. Purify the air in the salon

Explanation

An ultrasonic unit uses sound waves to shake loose debris from small crevices, but it is a cleaning aid, not a disinfectant or sterilant. Implements still must be disinfected or sterilized afterward. Only items that have been cleaned can be effectively disinfected.

Question 18Sanitation, Disinfection, and Safety

After implements are disinfected and dried, they should be stored:

  1. In a clean, closed container Correct answer.
  2. Submerged in disinfectant indefinitely
  3. In a drawer with soiled towels
  4. In an open tray on the station

Explanation

Disinfected implements are kept in a clean, covered container so dust, hair, and splashes cannot recontaminate them. Open storage exposes them to the salon environment and cross-contamination. Leaving metal tools indefinitely in disinfectant can corrode or damage them.

Question 19Sanitation, Disinfection, and Safety

Bleach mixed with ammonia produces:

  1. Toxic chloramine gas Correct answer.
  2. A harmless cleaning foam
  3. A sterilizing solution
  4. A stronger disinfectant

Explanation

Bleach and ammonia react to release chloramine gas, which can cause severe respiratory injury, so the two must never be combined. Cleaning chemicals should be used exactly as labeled and never mixed casually. Salon work areas should also be ventilated when chemicals are in use.

Question 20Sanitation, Disinfection, and Safety

Towels and linens used during a service must be:

  1. Shared among family members
  2. Spritzed with disinfectant and reused
  3. Reused if they look clean
  4. Laundered after each client Correct answer.

Explanation

Linens contact skin, hair, and possibly body fluids, so they are used once and then laundered with detergent and hot water before reuse. Disinfectant spray does not substitute for laundering. Soiled linens are kept in a closed container away from clean supplies.

Question 21Sanitation, Disinfection, and Safety

A disinfectant labeled hospital-grade must be:

  1. Bactericidal, virucidal, and fungicidal Correct answer.
  2. Approved for use on skin
  3. Effective only when heated
  4. Able to destroy bacterial spores

Explanation

Hospital-grade products carry claims for killing bacteria, viruses, and fungi, and many also carry a tuberculocidal claim. Spore destruction is a sterilization claim and is beyond the definition of a disinfectant. These products are for surfaces and implements, not for skin.

Question 22Sanitation, Disinfection, and Safety

Which process is required to destroy bacterial spores?

  1. Soaking in quaternary ammonium
  2. Exposure to ultraviolet light
  3. Wiping with 70 percent alcohol
  4. Sterilization Correct answer.

Explanation

Bacterial spores are highly resistant and survive ordinary disinfection; only sterilization, such as autoclaving, reliably destroys them. Disinfectants reduce most pathogens but leave spores intact. This is why items that penetrate skin must be handled at the sterilization level where required.

Question 23Sanitation, Disinfection, and Safety

Adding extra water to a disinfectant concentrate beyond the label dilution will:

  1. Have no effect on killing power
  2. Weaken it below the effective concentration Correct answer.
  3. Improve penetration of porous tools
  4. Shorten the required contact time

Explanation

Disinfectants are tested and registered at specific dilutions, so over-diluting lowers the active ingredient below the level proven to kill pathogens. The label dilution, temperature, and contact time must all be followed exactly. More concentrated is not better either, since it increases chemical hazards without improving efficacy.

Question 24Sanitation, Disinfection, and Safety

A cuticle nipper nicks a client and contacts blood. What is the correct handling?

  1. Clean it, then soak in a hospital disinfectant Correct answer.
  2. Wipe it with 70 percent alcohol and continue the service
  3. Rinse it under running water and set it aside to dry
  4. Soak it in soapy water until the end of the day

Explanation

An implement contaminated with blood must be cleaned of all debris, dried, and then completely immersed in an EPA-registered hospital disinfectant for the label's contact time. Wiping or rinsing alone does not disinfect. The incident should also be documented and the client's skin cared for appropriately.

Question 25Sanitation, Disinfection, and Safety

Why must a disinfectant be kept in its original labeled container rather than an unlabeled spray bottle?

  1. Spray bottles cannot hold disinfectant
  2. Labels make the product work better
  3. Labels identify the product and its hazards Correct answer.
  4. Unlabeled bottles lose their strength

Explanation

Without a label, workers cannot confirm what the chemical is, how to dilute it, what protective equipment is needed, or what to do after an accidental exposure. Keeping products in labeled containers is a basic safety requirement in the salon. Secondary containers should always be labeled when product is transferred.

Question 26Sanitation, Disinfection, and Safety

At a minimum, how long should hands be lathered with soap during handwashing?

  1. 5 seconds
  2. 20 seconds Correct answer.
  3. 10 seconds
  4. 2 minutes

Explanation

Hands should be lathered with soap and warm running water for at least 20 seconds, covering palms, backs, between the fingers, and under the nails. This contact time is what allows soap to lift and rinse away soil and transient microorganisms.

Question 27Sanitation, Disinfection, and Safety

Which action is an example of cleaning rather than disinfecting?

  1. Placing shears in an autoclave
  2. Spraying a styling chair with a disinfectant
  3. Soaking nippers in a hospital-grade disinfectant
  4. Scrubbing a sink with soap and water Correct answer.

Explanation

Cleaning is the physical removal of visible soil, debris, and some microorganisms using soap and water or detergent. It must be done before disinfection, but by itself it does not kill pathogens.

Question 28Sanitation, Disinfection, and Safety

A cosmetologist has just mopped the salon floor and it is still visibly wet. What is the correct action?

  1. Mop only after the last client of the day has gone
  2. Place a wet-floor warning sign at the edge of the wet area Correct answer.
  3. Direct clients around the area without any signage
  4. Leave the floor to air-dry and warn clients verbally as they pass

Explanation

Wet floors are a leading cause of slips and falls in salons, so a visible warning sign must mark the hazard until the surface is dry. Verbal warnings or gestures alone do not reliably protect clients who are not looking at the floor.

Question 29Sanitation, Disinfection, and Safety

An electrical fire starts at a dryer station. Which extinguisher class is designed for energized electrical equipment?

  1. Class B
  2. Class D
  3. Class C Correct answer.
  4. Class A

Explanation

Class C extinguishers use nonconductive agents such as carbon dioxide or dry chemical, so they can be applied to energized electrical equipment without shocking the user. Water-based Class A extinguishers are unsafe on live circuits.

Question 30Sanitation, Disinfection, and Safety

What is the main limitation of 70% isopropyl alcohol as an implement disinfectant?

  1. It must be mixed with water before each use
  2. It evaporates quickly and is unreliable for soaking Correct answer.
  3. It leaves a sticky residue that must be scrubbed off
  4. It corrodes stainless steel on contact

Explanation

Alcohol flashes off rapidly, so it cannot maintain the wet contact time a disinfectant label requires, and it is neutralized by organic matter such as hair and skin debris. For these reasons it is not the preferred immersion disinfectant for implements.

Question 31Sanitation, Disinfection, and Safety

A nail technician finishes a service while wearing disposable gloves. What is the correct practice?

  1. Turn the gloves inside out and store them in a drawer
  2. Wash and dry the gloves for the next client
  3. Spray the gloves with disinfectant and remove them
  4. Discard the gloves, then wash hands Correct answer.

Explanation

Disposable gloves are single-use; they are removed and thrown away after each client, and hands are washed before and after. Gloves can develop tiny tears during a service, so hand hygiene is still required after removal.

Question 32Sanitation, Disinfection, and Safety

What is the correct way to describe an ultraviolet light cabinet used in a salon?

  1. It sanitizes but cannot be relied on to disinfect Correct answer.
  2. It disinfects any implement, including porous files
  3. It replaces chemical disinfection for nippers and shears
  4. It sterilizes implements if they are left in for 24 hours

Explanation

Ultraviolet cabinets reduce surface microorganisms but light does not reach every surface evenly, so the process is considered sanitizing only. Porous items cannot be disinfected by any method and must be discarded after use.

Question 33Sanitation, Disinfection, and Safety

After several clients, the disinfectant jar looks cloudy and contains hair clippings. What should the cosmetologist do?

  1. Add extra concentrate to strengthen the solution
  2. Discard it, clean the jar, mix fresh solution Correct answer.
  3. Top off the jar with fresh disinfectant
  4. Strain out the hair and keep using the solution

Explanation

Visible cloudiness or debris signals that organic soil has built up and is neutralizing the active ingredient, so the solution is no longer reliable. The jar must be emptied, washed and rinsed, dried, and refilled with a freshly mixed batch at the label dilution.

Question 34Sanitation, Disinfection, and Safety

A client arrives for a manicure with a red, swollen, oozing area around one nail. What should the technician do?

  1. Decline service and refer the client to a physician Correct answer.
  2. Disinfect the area thoroughly and continue the manicure
  3. Cover the area with a bandage and proceed with the manicure
  4. Wear two pairs of gloves and complete the service

Explanation

Redness, swelling, and drainage suggest a bacterial or fungal infection, which is a contraindication for service in a salon. The cosmetologist is not licensed to treat disease and should refer the client to a physician rather than work over the area.

Question 35Sanitation, Disinfection, and Safety

Single-use items that have contacted a client's blood should be:

  1. soaked in disinfectant overnight and reused once
  2. double-bagged and sealed in a labeled waste container Correct answer.
  3. rinsed in the sink and discarded with salon linens
  4. placed in the regular trash inside the service area

Explanation

Blood-contaminated disposable items are potentially infectious and must be placed in a sealed, labeled container for proper disposal, following bloodborne pathogen rules. They are never rinsed into the plumbing or reused.

Question 36Sanitation, Disinfection, and Safety

A technician washes a disinfectant jar with soap, rinses it once, and refills it with a quaternary ammonium solution. Why can residual soap film be a problem?

  1. It can inactivate the disinfectant's active ingredient Correct answer.
  2. It dilutes the solution beyond the label ratio
  3. It speeds up evaporation and shortens the solution's life
  4. It makes the solution too alkaline for stainless steel

Explanation

Quaternary ammonium compounds are cationic, and anionic soap residue can bind with and neutralize them, reducing germ-killing power. Jars and basins must be washed, thoroughly rinsed, and dried before a fresh solution is mixed.

Question 37Sanitation, Disinfection, and Safety

Why is a clean, single-use neck strip placed between the client's neck and the cape?

  1. It holds the cape fastened securely at the front
  2. It keeps the shared cape from touching the skin Correct answer.
  3. It protects the cape from bleach and tint stains
  4. It keeps the cape from absorbing spilled water

Explanation

A neck strip acts as a barrier so the reusable cape does not contact one client after another, which would transfer skin cells, oils, and possible pathogens. The strip is used once and discarded, while the cape is laundered or replaced between clients.

Question 38Sanitation, Disinfection, and Safety

A nail technician works with monomer liquid all day. Which control best limits exposure to its vapors?

  1. A fan that blows air across the table toward the client
  2. Opening a window on the far side of the salon
  3. Burning a scented candle near the station
  4. Local exhaust ventilation at the worktable Correct answer.

Explanation

Source-capture ventilation at the worktable removes vapors before they reach the technician's breathing zone, which is the most effective engineering control. General room air movement and masking scents only spread or hide the vapors.

Question 39Sanitation, Disinfection, and Safety

Which practice best reduces physical strain during a long day of haircutting?

  1. Leaning forward over the client to see the guide line
  2. Holding the shears in a tight, locked grip all day
  3. Setting chair height so wrists stay neutral Correct answer.
  4. Standing in one fixed position to keep the arms steady

Explanation

Adjusting the client's chair height and keeping the wrists in a neutral position keeps the body in proper alignment and reduces repetitive strain. Fixed posture, leaning, and a locked grip increase fatigue and the risk of musculoskeletal injury.

Question 40Sanitation, Disinfection, and Safety

Which statement about a whirlpool foot spa used for pedicures is correct?

  1. Cleaning and disinfecting the basin after every client Correct answer.
  2. Adding disinfectant to the soak water protects each client
  3. Draining and refilling the basin with water is enough
  4. The basin needs disinfecting only at day's end

Explanation

Pedicure equipment harbors debris and biofilm in the basin, screen, and impeller, so it must be cleaned and disinfected between clients following manufacturer instructions. Skipping this step can spread bacteria and fungi from one client to the next.

Question 41Hair Care and Haircutting

Which tool is used to remove bulk from a section without shortening the overall length?

  1. Thinning shears Correct answer.
  2. Blunt shears
  3. Straight razor
  4. Taper comb

Explanation

Thinning shears have one cutting blade and one comb-like blade, so they cut only a portion of the hairs in a section, reducing bulk while leaving length. They are used on interior sections, not on the perimeter line, and are not meant to create a visible line.

Question 42Hair Care and Haircutting

Cutting every subsection at zero-degree elevation produces which result?

  1. Uniform layers
  2. Graduated layers
  3. One-length blunt Correct answer.
  4. Long layers

Explanation

Zero-degree elevation means the hair is held flat against the head with no lift, so all hair arrives at the same cutting line. The result is a solid, one-length shape with a heavy perimeter and no interior layering.

Question 43Hair Care and Haircutting

What is the name of the first section that is cut and that sets the length for the rest of the haircut?

  1. Perimeter
  2. Cross-check
  3. Section
  4. Guideline Correct answer.

Explanation

A guideline, or guide, is the initial cut whose length and angle every following subsection is matched to. Without a clear guide, the shape drifts and the finished cut is unbalanced.

Question 44Hair Care and Haircutting

In what condition should hair be for razor cutting?

  1. Bone dry and curly
  2. Damp and uncombed
  3. Wet and lubricated Correct answer.
  4. Clean and blown out

Explanation

A razor requires a smooth, slick surface to glide; hair is therefore cut wet and coated with a lubricating product. Cutting dry hair with a razor drags, pulls, and produces a ragged, uneven edge.

Question 45Hair Care and Haircutting

Which partings divide the head into the standard four haircutting sections?

  1. Temple to temple, then crown to nape
  2. Nape upward to the crown, then side to side
  3. Front hairline to nape, ear to ear Correct answer.
  4. Ear to ear only, then nape to crown

Explanation

The standard four sections are made with a center parting from the front hairline to the nape and a parting from the top of one ear across the crown to the other ear. These partings give four workable quadrants that keep the cut balanced.

Question 46Hair Care and Haircutting

How does the clipper-over-comb technique work?

  1. Comb is used only to blend the nape
  2. Clippers shorten the comb teeth first
  3. Comb guides the shears, not the clippers
  4. Comb lifts hair and clippers cut over it Correct answer.

Explanation

The comb is placed flat against the head and lifted to the desired level; the clippers then travel across the comb's teeth, using the comb as a guide. This allows short, blended lengths to be created close to the scalp, such as in fades and taper cuts.

Question 47Hair Care and Haircutting

What is the purpose of texturizing a haircut?

  1. Adds length to the ends
  2. Removes bulk and adds movement Correct answer.
  3. Makes the perimeter heavier
  4. Sets hair in a shape

Explanation

Texturizing techniques such as point cutting and notching remove small amounts of hair from interior or end areas, which lightens the shape and lets the hair move. It does not change the overall length of the cut.

Question 48Hair Care and Haircutting

What is the purpose of a neck strip when a client is caped?

  1. It cushions the neck during shampooing
  2. A sanitary barrier at the skin Correct answer.
  3. It holds the cape closed at the front
  4. It marks the intended neckline length

Explanation

The neck strip is placed between the cape and the client's skin so the cape never touches the client directly. This satisfies the rule that a clean barrier be used for each client and keeps the cape from contacting skin or hair.

Question 49Hair Care and Haircutting

Which elevation produces a graduated shape?

  1. Graduated Correct answer.
  2. Blunt one-length
  3. Long layers
  4. Uniform layers

Explanation

Graduation is built at approximately 45 degrees of elevation, where each subsection is cut slightly shorter than the one below it. The stacked lengths create weight at the perimeter that tapers toward the crown.

Question 50Hair Care and Haircutting

A stylist directs hair forward to a guide at the front to preserve length along the perimeter. Which technique is being used?

  1. Sectioning
  2. Cross-checking
  3. Notching
  4. Overdirection Correct answer.

Explanation

Overdirection means combing the hair away from its natural position and into a stationary guide, which shifts weight and preserves length where the hair is directed. It is commonly used at the front hairline to keep a perimeter line longer.