Colorado Barber Licensing Examination
Practice Questions And Correct Answers
(Verified An
1. During a chemical relaxer service, a client reports a burning sensation. The barber
immediately rinses the product. Which physiological mechanism best explains the
burning sensation?
A. Alkaline hydrolysis of peptide bonds in the hair cortex
B. Exothermic neutralization of sodium hydroxide with the hair's natural oils
C. Denaturation of scalp proteins due to extreme pH
D. Ischemic response from scalp compression
Answer: C. Denaturation of scalp proteins due to extreme pH
Rationale: Sodium hydroxide (lye) at high pH denatures scalp proteins, causing irritation
and burning. Hydrolysis of hair bonds occurs but does not directly cause burning;
exothermic reactions are not the primary mechanism; ischemia is unrelated.
2. A barber uses a straight razor on a client with a known nickel allergy. The razor
has a stainless steel blade but a nickel-plated handle. Which precaution is most
appropriate?
A. Proceed, as the blade is stainless steel and the handle is not in contact with skin.
B. Wrap the handle in a barrier film to prevent nickel contact.
C. Use a disposable razor with a plastic handle instead.
D. Apply a topical antihistamine before shaving.
Answer: B. Wrap the handle in a barrier film to prevent nickel contact.
Rationale: Nickel allergy can be triggered by skin contact; wrapping the handle prevents
direct exposure. Stainless steel may contain nickel, but the handle is the main risk.
Disposable razors may still have nickel; antihistamines do not prevent contact dermatitis.
Page 1 of 80
,3. Which Colorado statute governs the sanitation requirements for barbershops and
barber schools?
A. Colorado Revised Statutes Title 12, Article 10
B. Colorado Revised Statutes Title 25, Article 4
C. Colorado Revised Statutes Title 18, Article 13
D. Colorado Revised Statutes Title 6, Article 1
Answer: A. Colorado Revised Statutes Title 12, Article 10
Rationale: Title 12, Article 10 of the Colorado Revised Statutes regulates barbers and
cosmetologists, including sanitation. Title 25 covers public health, Title 18 criminal code,
and Title 6 consumer protection.
4. A barber is mixing a color formula. The target is a level 6 ash blonde, but the
client's hair is a level 4 red-orange. Which color theory principle is critical to
neutralize unwanted warmth?
A. Use a color with a blue base to counteract orange.
B. Use a color with a green base to counteract red.
C. Use a color with a violet base to counteract yellow.
D. Use a color with a red base to enhance warmth.
Answer: A. Use a color with a blue base to counteract orange.
Rationale: Blue neutralizes orange on the color wheel. Green neutralizes red, violet
neutralizes yellow, and red enhances warmth, which is not desired.
Page 2 of 80
,5. In a barbershop, which item is considered a critical item requiring disinfection with
an EPA-registered hospital-grade disinfectant?
A. Neck strips
B. Straight razor
C. Cape
D. Comb
Answer: B. Straight razor
Rationale: Critical items are those that can penetrate skin or come into contact with blood
or body fluids, such as a straight razor. Neck strips and capes are non-critical; combs are
semi-critical and require intermediate disinfection.
6. A barber notices a client has a dry, scaly scalp with greasy, yellowish scales on the
scalp and hairline. This condition is most likely:
A. Tinea capitis
B. Seborrheic dermatitis
C. Pediculosis capitis
D. Folliculitis
Answer: B. Seborrheic dermatitis
Rationale: Seborrheic dermatitis presents as greasy, yellowish scales on the scalp. Tinea
capitis is fungal with ringworm-like patches; pediculosis is lice infestation; folliculitis is
inflammation of hair follicles.
Page 3 of 80
, 7. Which cutting technique creates a graduated effect by holding the hair at a
45-degree elevation and cutting with the fingers parallel to the head?
A. Blunt cut
B. Graduated cut
C. Layer cut
D. Taper cut
Answer: B. Graduated cut
Rationale: A graduated cut uses 45-degree elevation to build weight and length, creating a
stacked effect. Blunt cut is at 0 degrees; layer cut is at 90 degrees; taper cut is a gradual
shortening near the hairline.
8. A barber is performing a shave on a client taking anticoagulant medication. Which
action is most appropriate?
A. Proceed with a straight razor shave, as bleeding is minimal.
B. Use an electric razor to minimize the risk of nicks.
C. Apply a styptic pencil before shaving to prevent bleeding.
D. Refuse service and refer to a physician.
Answer: B. Use an electric razor to minimize the risk of nicks.
Rationale: Anticoagulants increase bleeding risk; an electric razor reduces cuts. A straight
razor may cause bleeding; styptic pencils are for aftercuts; refusing service is unnecessary
if precautions are taken.
Page 4 of 80
Practice Questions And Correct Answers
(Verified An
1. During a chemical relaxer service, a client reports a burning sensation. The barber
immediately rinses the product. Which physiological mechanism best explains the
burning sensation?
A. Alkaline hydrolysis of peptide bonds in the hair cortex
B. Exothermic neutralization of sodium hydroxide with the hair's natural oils
C. Denaturation of scalp proteins due to extreme pH
D. Ischemic response from scalp compression
Answer: C. Denaturation of scalp proteins due to extreme pH
Rationale: Sodium hydroxide (lye) at high pH denatures scalp proteins, causing irritation
and burning. Hydrolysis of hair bonds occurs but does not directly cause burning;
exothermic reactions are not the primary mechanism; ischemia is unrelated.
2. A barber uses a straight razor on a client with a known nickel allergy. The razor
has a stainless steel blade but a nickel-plated handle. Which precaution is most
appropriate?
A. Proceed, as the blade is stainless steel and the handle is not in contact with skin.
B. Wrap the handle in a barrier film to prevent nickel contact.
C. Use a disposable razor with a plastic handle instead.
D. Apply a topical antihistamine before shaving.
Answer: B. Wrap the handle in a barrier film to prevent nickel contact.
Rationale: Nickel allergy can be triggered by skin contact; wrapping the handle prevents
direct exposure. Stainless steel may contain nickel, but the handle is the main risk.
Disposable razors may still have nickel; antihistamines do not prevent contact dermatitis.
Page 1 of 80
,3. Which Colorado statute governs the sanitation requirements for barbershops and
barber schools?
A. Colorado Revised Statutes Title 12, Article 10
B. Colorado Revised Statutes Title 25, Article 4
C. Colorado Revised Statutes Title 18, Article 13
D. Colorado Revised Statutes Title 6, Article 1
Answer: A. Colorado Revised Statutes Title 12, Article 10
Rationale: Title 12, Article 10 of the Colorado Revised Statutes regulates barbers and
cosmetologists, including sanitation. Title 25 covers public health, Title 18 criminal code,
and Title 6 consumer protection.
4. A barber is mixing a color formula. The target is a level 6 ash blonde, but the
client's hair is a level 4 red-orange. Which color theory principle is critical to
neutralize unwanted warmth?
A. Use a color with a blue base to counteract orange.
B. Use a color with a green base to counteract red.
C. Use a color with a violet base to counteract yellow.
D. Use a color with a red base to enhance warmth.
Answer: A. Use a color with a blue base to counteract orange.
Rationale: Blue neutralizes orange on the color wheel. Green neutralizes red, violet
neutralizes yellow, and red enhances warmth, which is not desired.
Page 2 of 80
,5. In a barbershop, which item is considered a critical item requiring disinfection with
an EPA-registered hospital-grade disinfectant?
A. Neck strips
B. Straight razor
C. Cape
D. Comb
Answer: B. Straight razor
Rationale: Critical items are those that can penetrate skin or come into contact with blood
or body fluids, such as a straight razor. Neck strips and capes are non-critical; combs are
semi-critical and require intermediate disinfection.
6. A barber notices a client has a dry, scaly scalp with greasy, yellowish scales on the
scalp and hairline. This condition is most likely:
A. Tinea capitis
B. Seborrheic dermatitis
C. Pediculosis capitis
D. Folliculitis
Answer: B. Seborrheic dermatitis
Rationale: Seborrheic dermatitis presents as greasy, yellowish scales on the scalp. Tinea
capitis is fungal with ringworm-like patches; pediculosis is lice infestation; folliculitis is
inflammation of hair follicles.
Page 3 of 80
, 7. Which cutting technique creates a graduated effect by holding the hair at a
45-degree elevation and cutting with the fingers parallel to the head?
A. Blunt cut
B. Graduated cut
C. Layer cut
D. Taper cut
Answer: B. Graduated cut
Rationale: A graduated cut uses 45-degree elevation to build weight and length, creating a
stacked effect. Blunt cut is at 0 degrees; layer cut is at 90 degrees; taper cut is a gradual
shortening near the hairline.
8. A barber is performing a shave on a client taking anticoagulant medication. Which
action is most appropriate?
A. Proceed with a straight razor shave, as bleeding is minimal.
B. Use an electric razor to minimize the risk of nicks.
C. Apply a styptic pencil before shaving to prevent bleeding.
D. Refuse service and refer to a physician.
Answer: B. Use an electric razor to minimize the risk of nicks.
Rationale: Anticoagulants increase bleeding risk; an electric razor reduces cuts. A straight
razor may cause bleeding; styptic pencils are for aftercuts; refusing service is unnecessary
if precautions are taken.
Page 4 of 80
