Free Illinois Cosmetology Examination Practice Questions

Sample Practice Questions

Try these 10 sample questions from the Illinois Cosmetology Examination practice bank. Each includes the answer and explanation. Continue with the interactive practice above to review the full question set.

1. 1An Illinois cosmetologist is choosing a process intended to eliminate harmful bacteria, fungi, and viruses from a hard surface. Which process is defined for that purpose?

   1. A. Cleaning
   2. B. Disinfecting
   3. C. Rinsing
   4. D. Drying

   Answer: B

   Explanation: Illinois defines disinfecting as “the use of a chemical agent that eliminates harmful bacteria, fungi and viruses on surfaces.” The other actions may precede or follow disinfection but do not satisfy that definition.

   Reference: ADMINISTRATIVE CODE — 68 Ill. Adm. Code 1175.115(a)(2)

2. 2Which observation is commonly associated with a fingernail or toenail infection?

   1. A. Swelling or pain around the nail
   2. B. White spots within the nail plate
   3. C. Longitudinal nail-plate ridges
   4. D. An intact cuticle seal

   Answer: A

   Explanation: CDC says nail infections “often appear as swelling of the skin around the nails,” pain around the nails, or nail thickening.

   Reference: Healthy Habits: Nail Hygiene | Water, Sanitation, and Environmentally Related Hygiene (WASH) | CDC — Healthy Habits: Nail Hygiene

3. 3What is the central purpose of a haircut consultation?

   1. A. Learn what the client wants and offer professional advice
   2. B. Choose retail products before discussing the cut
   3. C. Set the service price after cutting begins
   4. D. Avoid discussing maintenance expectations

   Answer: A

   Explanation: Milady describes the haircut consultation as a conversation to discover what the client wants and “offer suggestions, professional advice.”

   Reference: Milady 2016 Correlation Guide — Chapter 16, Conduct an Effective Consultation for Haircutting

4. 4Two clients encounter the same airborne formaldehyde level but only one reacts. Which FDA statement explains this difference?

   1. A. Some people are very sensitive while others have no reaction at the same level
   2. B. Formaldehyde affects only clients with colored hair
   3. C. Sensitivity occurs only during nail services
   4. D. Everyone has identical reactions at identical levels

   Answer: A

   Explanation: FDA notes, “Some people are very sensitive to formaldehyde, whereas others have no reaction to the same level of exposure.”

   Reference: Hair Smoothing Products That Release Formaldehyde When Heated | FDA — What Should Consumers Know?

5. 5How often should a sensitivity patch test be performed for a client receiving hair dye?

   1. A. Only before the first lifetime color service
   2. B. Once each calendar year
   3. C. Each time the hair is dyed
   4. D. Only after changing salons

   Answer: C

   Explanation: FDA says, “You should do the test each time you dye your hair,” and notes that salons should also perform the patch test.

   Reference: Cosmetics Safety Q&A: Hair Dyes | FDA — Hair-dye precautions

6. 6Which finding during a pedicure consultation is a reason to avoid foot-spa water?

   1. A. Intact dry skin
   2. B. A healed flat scar
   3. C. An open scratch on the lower leg
   4. D. Even nail length

   Answer: C

   Explanation: EPA cautions that broken skin, including “cuts and abrasions,” should not contact foot-spa water because microorganisms can enter through the skin.

   Reference: Preventing Pedicure Foot Spa Infections | US EPA — Protect Your Skin

7. 7How should cream be removed from a multiuse container during a facial to protect the unused portion from cross-contamination?

   1. A. Transfer one service portion with a single-use spatula without re-dipping
   2. B. Re-dip a disinfected reusable spatula as the service proceeds
   3. C. Scoop each portion with a freshly gloved finger
   4. D. Return the unused service portion with a clean spatula

   Answer: A

   Explanation: Products subject to contamination by re-dipping “shall be dispensed from containers to prevent contamination of the unused portion.” Returning product or adding disinfectant defeats that control.

   Reference: ADMINISTRATIVE CODE — 68 Ill. Adm. Code 1175.115(b)(9)

8. 8Which combination of functions must an Illinois hospital-grade disinfectant perform?

   1. A. Bactericidal, virucidal, and fungicidal
   2. B. Bactericidal, virucidal, and tuberculocidal
   3. C. Bactericidal, fungicidal, and sporicidal
   4. D. Virucidal, fungicidal, and bacteriostatic

   Answer: A

   Explanation: The rule says a hospital-grade disinfectant performs the functions of “bactericides … virucides … and fungicides.” All three antimicrobial functions are required.

   Reference: ADMINISTRATIVE CODE — 68 Ill. Adm. Code 1175.115(a)(4)

9. 9A client shampoos infrequently and has scalp buildup. Which group does CDC identify as possible buildup?

   1. A. Dead skin, dirt, product residue, and sweat
   2. B. Sebum, mineral residue, airborne soil, and conditioner
   3. C. Keratin debris, styling wax, dry shampoo, and natural oil
   4. D. Cuticle scales, environmental dust, shampoo film, and sebum

   Answer: A

   Explanation: CDC says “dead skin, dirt, product residue, and sweat may also build up on your scalp” when washing is less frequent.

   Reference: Healthy Habits: Hair and Scalp Hygiene | Water, Sanitation, and Environmentally Related Hygiene (WASH) | CDC — Hair and Scalp Hygiene

10. 10Which feature should guide advice when selecting a haircut that works with the client's head form?

    1. A. Reference points where the head curves and changes
    2. B. Hair density throughout the head
    3. C. Natural growth patterns at the hairline
    4. D. Hair texture and wave pattern

    Answer: A

    Explanation: The public curriculum labels this competency “Reference Points & Areas of the Head”; those points show where the head form curves, turns, and changes.

    Reference: Milady 2016 Correlation Guide — Chapter 16, Reference Points & Areas of the Head