TheoryCosmetology Practice Questions
Free Cosmetology practice questions with answers and plain-English explanations. Browse the PDF, video and online mock test.
Cosmetology Questions
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Q1Which level of decontamination completely destroys all microbial life, including spores?
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✓ Correct answer: Sterilization
Sterilization is the only process that destroys all microbial life including the most resistant bacterial spores; sanitation and disinfection reduce pathogens but do not achieve this absolute level.
Q2Before disinfecting a non-porous implement, the FIRST required step is to:
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✓ Correct answer: Physically clean it to remove all visible debris and biofilm
Cleaning to remove all visible organic matter must occur before disinfection because soil and biofilm prevent the disinfectant from making full contact with the surface of the implement.
Q3A Safety Data Sheet (SDS) is required to include how many sections according to OSHA's Hazard Communication Standard?
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✓ Correct answer: 16
OSHA's HazCom Standard (29 CFR 1910.1200) mandates that every SDS contain exactly 16 standardized sections covering identity, hazards, composition, first aid, handling, and emergency response.
Q4Single-use items such as wooden cuticle sticks and orangewood sticks must be:
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✓ Correct answer: Discarded after use on one client and never reused
Single-use (disposable) implements are porous and cannot be adequately disinfected, so cosmetology regulations require they be discarded immediately after use on a single client.
Q5Standard Precautions require that cosmetologists treat the blood and body fluids of EVERY client as if they are:
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✓ Correct answer: Potentially infectious regardless of the client's apparent health
Standard Precautions, established by the CDC, require treating all blood and potentially infectious body fluids as hazardous regardless of the client's known or disclosed health status.
Q6An EPA-registered, hospital-grade disinfectant is properly prepared and a metal nail implement is fully immersed. According to Milady standard protocol, the minimum immersion contact time is typically:
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✓ Correct answer: 10 minutes
Standard cosmetology curriculum specifies that non-porous implements must remain fully immersed in an EPA-registered disinfectant for a minimum of 10 minutes to achieve effective disinfection.
Q7Which type of disinfectant is most commonly recommended in salon settings because it is effective against HIV, HBV, bacteria, and fungi when used at the correct dilution?
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✓ Correct answer: Quaternary ammonium compounds (quats)
Quaternary ammonium compounds are EPA-registered, hospital-grade disinfectants widely used in salons because they are broad-spectrum, relatively safe on skin, and effective against HIV, HBV, bacteria, and fungi at proper dilution.
Q8After a cosmetologist accidentally cuts a client and blood is present, the CORRECT immediate action under bloodborne pathogen protocols is to:
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✓ Correct answer: Stop the service, put on gloves, clean and bandage the wound, and discard all contaminated single-use items
OSHA bloodborne pathogen standards require immediately stopping service, donning gloves, controlling the bleeding, bandaging the wound, and properly disposing of all single-use contaminated materials.
Q9Disinfectant solution in a salon wet sanitizer must be changed:
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✓ Correct answer: Daily or more often if it becomes contaminated or diluted
Disinfectant solutions lose efficacy when contaminated with organic matter or when diluted, so state boards and Milady curriculum require solutions to be changed daily or immediately upon contamination.
Q10An autoclave achieves sterilization by using:
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✓ Correct answer: Pressurized steam at approximately 250°F (121°C) for a set time
An autoclave sterilizes instruments by exposing them to pressurized saturated steam at approximately 121°C (250°F), which denatures proteins and destroys all microbial life including spores.
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