When an overload occurs, which device is designed to break the flow of electricity?
d. circuit breaker
42. Which of the following currents is the only constant direct current of low voltage and high
amperage that produces an electrochemical effect?
What type of light normally produces "red" tones or "warm" casts and is produced by the ordinary
44. Which form of light can produce positive or negative effects to the skin based on exposure time?
c. visible light
Which of the following ultraviolet rays are the longest and most frequently used in
46. What is the term given to describe the effect created when current travels through a water-based
solution and into the skin?
Which of the following descriptions is a benefit of using a metal; single or double prong electrode
in a skin care treatment?
a. stimulates scalp
b. dissolves sebum
c. promotes product penetration over the entire face
d. promotes product penetration in delicate lines and crevices
48. The electrode most likely to be selected for stimulating the scalp is called the:
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Unit 2 Test - p325