Oklahoma Cosmetology Board Practice Exam 2026 - Free Cosmetology Practice Questions and Study Guide

Question: 1 / 400

Which electrical device is used to curl hair?

Curling iron

The curling iron is specifically designed to curl hair. It works by using heated barrels that can be different sizes to achieve various curl types, from tight ringlets to loose waves. The heat causes the hair's structure to change temporarily, allowing it to be molded into curls.

In contrast, a blow dryer is primarily used for drying hair and can add volume, but it doesn't curl hair. A straightening iron is intended for smoothing hair and creating a straight appearance, using heat to change the hair's structure in the opposite direction. A hair clipper is designed for cutting hair and is not used for styling or curling. Therefore, the curling iron is the essential tool for achieving curly hairstyles.

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Blow dryer

Straightening iron

Hair clipper

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