Practice Test Geeks(CHS) Certified Hair Stylist Practice Test
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CHS Tools, Equipment & Product Knowledge Flashcards

6 cards from real CHS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 CHS Tools, Equipment & Product Knowledge flashcards as text

  1. Shears with a convex edge (razor edge) are preferred for:

    Answer: Slide cutting and precise blunt cuts

    Convex-edge shears are extremely sharp and smooth, making them ideal for slide cutting and clean blunt cuts with minimal hair damage.

  2. A clipper guard numbered #4 typically cuts hair to what length?

    Answer: 1/2 inch

    Clipper guard #4 leaves hair at 1/2 inch (12 mm), with each guard number representing an additional 1/8 inch of length.

  3. What does 'pH balanced' mean on a hair product label?

    Answer: The product's pH is close to the natural pH of hair and scalp (4.5–5.5)

    pH-balanced hair products are formulated near the hair's natural acidic range of 4.5–5.5, which helps maintain a smooth, closed cuticle.

  4. When sanitizing metal shears between clients, the stylist should:

    Answer: Wipe with 70% isopropyl alcohol and allow to air dry

    70% isopropyl alcohol effectively disinfects metal shears quickly; prolonged bleach exposure can corrode the metal and damage the blade.

  5. Which product is applied before heat styling to protect hair from thermal damage?

    Answer: Heat protectant

    Heat protectants form a coating over the hair shaft that reduces moisture loss and limits direct heat transfer to the cuticle and cortex.

  6. A thinning shear (texturizing shear) removes bulk without:

    Answer: Removing length

    Thinning shears have one serrated blade that removes internal weight and bulk while leaving the outer length intact.