Ohio Barber License Practice Exam

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Study for the Ohio Barber License Exam. Learn with flashcards and multiple choice questions, each supported with hints and explanations. Prepare thoroughly for your certification!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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Which appliance produces a high rate of oscillation within glass electrodes for facial and scalp treatments?

High-frequency face machine
Ultrasonic cleanser
Microdermabrasion device
LED light therapy device

The correct answer is: High-frequency face machine

The high-frequency face machine is the only appliance in this list that specifically mentions producing a high rate of oscillation - a vital aspect for effective facial and scalp treatments. Ultrasonic cleansers function as a tool for gentle exfoliation and pore cleaning and do not provide the same oscillation as the high-frequency machine. Microdermabrasion devices use a fine stream of abrasive crystals or a rough surface to remove dead skin cells, which is a different mechanism than the high-frequency machine. LED light therapy devices use different colored lights to penetrate the skin at varying depths rather than producing an oscillating current. Therefore, the other options are incorrect based on the specific requirement of a high rate of oscillation.