California Cosmetology Written ExamHaircuttingMedium

A barber-stylist attaches a #2 clipper guard to give a client a short, even length on the sides and back. Approximately what length of hair will remain after cutting with a #2 guard?

  1. A1/4 inch
  2. B1/2 inch
  3. C1 inch
  4. D1/8 inch
Show answer & explanation

Correct answer: A. 1/4 inch

Standard clipper guard sizing leaves approximately 1/8 inch of hair per guard number increment; a #2 guard leaves hair approximately 1/4 inch long (2 x 1/8 inch). A #1 guard leaves about 1/8 inch, and larger numbers leave progressively longer lengths.

Why the other options are wrong

  • B. 1/2 inch corresponds to roughly a #4 guard.
  • C. 1 inch is far longer than any standard low-numbered guard size.
  • D. 1/8 inch corresponds to a #1 guard, not a #2 guard.

Clipper Guard Sizing

Clipper guards are numbered attachments that determine cut length; each increasing number generally adds about 1/8 inch of length, with #1 leaving ~1/8 inch and #2 leaving ~1/4 inch.

  • Guard numbers correspond to fractional inch lengths
  • #1 ≈ 1/8 inch, #2 ≈ 1/4 inch, #3 ≈ 3/8 inch
  • Used to achieve even, consistent lengths in clipper cuts

Memory trick: Guard number x 1/8 inch = length left behind.

More Haircutting questions