Illinois Barber Licensing Examination
with Practice Questions And Correct
Answers (Verifi
1. A barber in Illinois discovers that a client's scalp shows patchy hair loss with black
dot sign and broken hairs. According to Illinois Barber Act rules and CDC guidance,
which action is the barber legally required to take?
A. Proceed with the haircut but wear two pairs of gloves and dispose of all hair clippings
as biohazard waste.
B. Refuse service, document the suspected fungal infection, and refer the client to a
physician; disinfect all tools with an EPA-registered hospital-grade disinfectant.
C. Treat the affected area with an over-the-counter antifungal cream and continue the
service after 10 minutes.
D. Complete the service using only disposable tools, then sterilize the workstation with a
1:10 bleach solution.
Answer: B. Refuse service, document the suspected fungal infection, and refer the
client to a physician; disinfect all tools with an EPA-registered hospital-grade
disinfectant.
Rationale: Black dot sign and broken hairs suggest tinea capitis, a contagious fungal
infection. Illinois rules prohibit barbers from treating or servicing known infectious
conditions; referral and proper disinfection are required. Options A, C, and D either
provide treatment beyond scope or fail to address the required referral and EPA-grade
disinfection.
Page 1 of 80
,2. Which statement best explains why a barber should avoid using a straight razor on
a client with a history of cold sores, even if no active lesion is visible?
A. The herpes simplex virus can be transmitted via asymptomatic shedding, and the razor
may cause microtrauma that facilitates entry.
B. Cold sores indicate an autoimmune disorder that makes the skin more susceptible to
razor burn.
C. Straight razors are prohibited in Illinois for clients with any history of viral infections.
D. The virus cannot survive on metal, so the risk is only to the barber, not the client.
Answer: A. The herpes simplex virus can be transmitted via asymptomatic shedding,
and the razor may cause microtrauma that facilitates entry.
Rationale: Herpes simplex virus can be shed asymptomatically, and shaving creates
microabrasions that increase transmission risk. Illinois infection control standards require
barbers to avoid procedures that compromise skin integrity when viral shedding is
possible. Option B is unrelated; C is false; D is incorrect because the virus can survive on
inanimate objects long enough to transmit.
Page 2 of 80
,3. A barber is formulating a relaxer for a client with fine, color-treated hair and a
sensitive scalp. Which combination of active ingredient and strength is most
appropriate to minimize damage while achieving adequate straightening?
A. Sodium hydroxide, regular strength, with a protective base applied to the scalp.
B. Guanidine hydroxide, mild strength, no-base formula, applied from mid-shaft to ends
first.
C. Ammonium thioglycolate, strong strength, with heat activation.
D. Lithium hydroxide, super strength, applied directly to the scalp for faster processing.
Answer: B. Guanidine hydroxide, mild strength, no-base formula, applied from
mid-shaft to ends first.
Rationale: Guanidine hydroxide (no-lye) is milder and less irritating, making it suitable for
sensitive scalps and color-treated hair. Application from mid-shaft to ends first prevents
overprocessing at the scalp. Sodium hydroxide regular and lithium hydroxide super are too
harsh; ammonium thioglycolate is a thio relaxer, not appropriate for this scenario.
4. During a beard trim, a barber notices a raised, pearly border lesion with central
ulceration on the client's upper lip. The client reports it has been present for three
weeks and occasionally bleeds. What is the most appropriate action?
A. Avoid the area, complete the trim, and advise the client to see a dermatologist
promptly.
B. Apply a styptic pencil to stop bleeding and continue the service.
C. Cleanse the area with an antiseptic and cover it with a bandage before continuing.
D. Recommend an over-the-counter antibiotic ointment and schedule a follow-up in one
week.
Answer: A. Avoid the area, complete the trim, and advise the client to see a
dermatologist promptly.
Rationale: The lesion's appearance and duration are suspicious for basal cell carcinoma.
Barbers must not diagnose or treat; they should avoid the area, complete the service safely,
and refer for medical evaluation. Options B, C, and D involve treatment or delay, which
are outside scope and potentially harmful.
Page 3 of 80
, 5. Which of the following best describes the legal scope of practice for an Illinois
barber regarding the application of hair color?
A. Barbers may apply only temporary colors; permanent and demi-permanent colors
require a cosmetology license.
B. Barbers may apply all types of hair color, including lighteners, as long as they do not
perform chemical hair relaxing.
C. Barbers may apply hair color only under the direct supervision of a licensed
cosmetologist.
D. Barbers are prohibited from applying any hair color; that is exclusively a cosmetology
service.
Answer: B. Barbers may apply all types of hair color, including lighteners, as long as
they do not perform chemical hair relaxing.
Rationale: Under the Illinois Barber Act, barbers are licensed to perform hair coloring,
including lightening, but not chemical hair relaxing (which is a cosmetology service).
Options A, C, and D misstate the scope of practice; barbers can perform color services
independently.
6. A barber uses a quaternary ammonium compound to disinfect combs. Which factor
most significantly reduces its efficacy against Mycobacterium tuberculosis?
A. The presence of organic matter such as hair and skin oils.
B. The pH of the water used for dilution.
C. The contact time of 10 minutes.
D. The temperature of the solution at 75°F.
Answer: A. The presence of organic matter such as hair and skin oils.
Rationale: Quaternary ammonium compounds are inactivated by organic matter, which is
common on combs after use. Proper cleaning before disinfection is essential. pH, contact
time (if per label), and temperature within range are less critical than the presence of
bioburden.
Page 4 of 80
with Practice Questions And Correct
Answers (Verifi
1. A barber in Illinois discovers that a client's scalp shows patchy hair loss with black
dot sign and broken hairs. According to Illinois Barber Act rules and CDC guidance,
which action is the barber legally required to take?
A. Proceed with the haircut but wear two pairs of gloves and dispose of all hair clippings
as biohazard waste.
B. Refuse service, document the suspected fungal infection, and refer the client to a
physician; disinfect all tools with an EPA-registered hospital-grade disinfectant.
C. Treat the affected area with an over-the-counter antifungal cream and continue the
service after 10 minutes.
D. Complete the service using only disposable tools, then sterilize the workstation with a
1:10 bleach solution.
Answer: B. Refuse service, document the suspected fungal infection, and refer the
client to a physician; disinfect all tools with an EPA-registered hospital-grade
disinfectant.
Rationale: Black dot sign and broken hairs suggest tinea capitis, a contagious fungal
infection. Illinois rules prohibit barbers from treating or servicing known infectious
conditions; referral and proper disinfection are required. Options A, C, and D either
provide treatment beyond scope or fail to address the required referral and EPA-grade
disinfection.
Page 1 of 80
,2. Which statement best explains why a barber should avoid using a straight razor on
a client with a history of cold sores, even if no active lesion is visible?
A. The herpes simplex virus can be transmitted via asymptomatic shedding, and the razor
may cause microtrauma that facilitates entry.
B. Cold sores indicate an autoimmune disorder that makes the skin more susceptible to
razor burn.
C. Straight razors are prohibited in Illinois for clients with any history of viral infections.
D. The virus cannot survive on metal, so the risk is only to the barber, not the client.
Answer: A. The herpes simplex virus can be transmitted via asymptomatic shedding,
and the razor may cause microtrauma that facilitates entry.
Rationale: Herpes simplex virus can be shed asymptomatically, and shaving creates
microabrasions that increase transmission risk. Illinois infection control standards require
barbers to avoid procedures that compromise skin integrity when viral shedding is
possible. Option B is unrelated; C is false; D is incorrect because the virus can survive on
inanimate objects long enough to transmit.
Page 2 of 80
,3. A barber is formulating a relaxer for a client with fine, color-treated hair and a
sensitive scalp. Which combination of active ingredient and strength is most
appropriate to minimize damage while achieving adequate straightening?
A. Sodium hydroxide, regular strength, with a protective base applied to the scalp.
B. Guanidine hydroxide, mild strength, no-base formula, applied from mid-shaft to ends
first.
C. Ammonium thioglycolate, strong strength, with heat activation.
D. Lithium hydroxide, super strength, applied directly to the scalp for faster processing.
Answer: B. Guanidine hydroxide, mild strength, no-base formula, applied from
mid-shaft to ends first.
Rationale: Guanidine hydroxide (no-lye) is milder and less irritating, making it suitable for
sensitive scalps and color-treated hair. Application from mid-shaft to ends first prevents
overprocessing at the scalp. Sodium hydroxide regular and lithium hydroxide super are too
harsh; ammonium thioglycolate is a thio relaxer, not appropriate for this scenario.
4. During a beard trim, a barber notices a raised, pearly border lesion with central
ulceration on the client's upper lip. The client reports it has been present for three
weeks and occasionally bleeds. What is the most appropriate action?
A. Avoid the area, complete the trim, and advise the client to see a dermatologist
promptly.
B. Apply a styptic pencil to stop bleeding and continue the service.
C. Cleanse the area with an antiseptic and cover it with a bandage before continuing.
D. Recommend an over-the-counter antibiotic ointment and schedule a follow-up in one
week.
Answer: A. Avoid the area, complete the trim, and advise the client to see a
dermatologist promptly.
Rationale: The lesion's appearance and duration are suspicious for basal cell carcinoma.
Barbers must not diagnose or treat; they should avoid the area, complete the service safely,
and refer for medical evaluation. Options B, C, and D involve treatment or delay, which
are outside scope and potentially harmful.
Page 3 of 80
, 5. Which of the following best describes the legal scope of practice for an Illinois
barber regarding the application of hair color?
A. Barbers may apply only temporary colors; permanent and demi-permanent colors
require a cosmetology license.
B. Barbers may apply all types of hair color, including lighteners, as long as they do not
perform chemical hair relaxing.
C. Barbers may apply hair color only under the direct supervision of a licensed
cosmetologist.
D. Barbers are prohibited from applying any hair color; that is exclusively a cosmetology
service.
Answer: B. Barbers may apply all types of hair color, including lighteners, as long as
they do not perform chemical hair relaxing.
Rationale: Under the Illinois Barber Act, barbers are licensed to perform hair coloring,
including lightening, but not chemical hair relaxing (which is a cosmetology service).
Options A, C, and D misstate the scope of practice; barbers can perform color services
independently.
6. A barber uses a quaternary ammonium compound to disinfect combs. Which factor
most significantly reduces its efficacy against Mycobacterium tuberculosis?
A. The presence of organic matter such as hair and skin oils.
B. The pH of the water used for dilution.
C. The contact time of 10 minutes.
D. The temperature of the solution at 75°F.
Answer: A. The presence of organic matter such as hair and skin oils.
Rationale: Quaternary ammonium compounds are inactivated by organic matter, which is
common on combs after use. Proper cleaning before disinfection is essential. pH, contact
time (if per label), and temperature within range are less critical than the presence of
bioburden.
Page 4 of 80
