CORRECT ANSWERS WITH
RATIONALES. A+ GUARANTEED
SUCCESS
1. Which layer of the hair contains pigment that gives hair its
color?
A. Cortex
B. Cuticle
C. Medulla
D. Follicle
Answer: A
Rationale: The cortex contains melanin, which determines
natural hair color.
2. Which disinfectant is recommended for tools that come in
contact with blood?
A. EPA-registered hospital disinfectant
B. Alcohol only
C. Soap and water
D. Bleach diluted 1:100
Answer: A
,Rationale: Hospital-grade disinfectants are required for
bloodborne pathogen safety.
3. Which type of hair relaxer uses hydroxide to permanently
straighten hair?
A. Sodium hydroxide relaxer
B. Ammonium thioglycolate
C. Cream lightener
D. Temporary relaxer
Answer: A
Rationale: Sodium hydroxide breaks disulfide bonds for
permanent straightening.
4. Which condition is indicated by yellow-green, brittle
nails?
A. Fungal infection
B. Psoriasis
C. Eczema
D. Onycholysis
Answer: A
Rationale: Discoloration and brittleness suggest fungal nail
infection.
,5. Which type of hair color partially penetrates the cuticle
but does not alter the natural pigment?
A. Semi-permanent
B. Permanent
C. Bleach
D. Demi-permanent
Answer: A
Rationale: Semi-permanent colors coat the hair shaft and
fade with washes.
6. Which skin disorder is contagious and caused by mites?
A. Scabies
B. Acne
C. Psoriasis
D. Eczema
Answer: A
Rationale: Scabies is caused by Sarcoptes scabiei and
spreads through contact.
7. Which chemical process is used to lift hair color by
breaking down melanin?
A. Lightening (bleaching)
B. Conditioning
, C. Relaxing
D. Toning
Answer: A
Rationale: Bleaching oxidizes melanin to lighten natural hair
color.
8. Which layer of the skin contains blood vessels and
nerves?
A. Dermis
B. Epidermis
C. Hypodermis
D. Stratum corneum
Answer: A
Rationale: The dermis provides nutrients, sensation, and
elasticity.
9. Which type of chemical wave solution is used for soft,
natural-looking curls?
A. Acid wave
B. Alkaline wave
C. Neutralizer only
D. Hydroxide wave
Answer: A