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FRESHMAN T1 W4
102.9-102.10 Electricity Test
| Question | Answer |
|---|---|
| A current in which electrons move at an even rate and flow in only one direction is called: | direct current |
| Bacteria that cause skin infections can be killed by: | ultraviolet light |
| Depending on it's design, which type of light can create blue or cool tones? | flourescent |
| High frequency current is an alternating current that can be adjusted to different voltages to produce heat? | tesla |
| How does a cold setting work on a blow dryer? | stops all flow of current to the heating element, but still allows current to flow to the dryer |
| If the client is holding the active electrode while the salon pro manually stimulates the area being treated, what method of high frequency current is being used? | indirect application |
| Incandescent light normally produces what color tones in the objects it lights? | redder tones |
| The chemical breakdown of the skin caused by intense heat? | pyrolysis |
| The direct current used in electrotherapy treatments is: | galvanic |
| The max amount of current used in a galvanic treatment should generally not exceed: | 2 milliamperes |
| The minimum distance an infrared lamp must be placed from the client's face during a facial? | 30" |
| The process of forcing an acid or alkali into the skinby applying current to the chemical? | phoresis |
| What is the timing guideline when using galvanic current for a sensitive skin treatment? | 3-5 minutes |
| When testing electrodes for polarity, the negative electrode will create | smaller bubbles |
| When the salon pro applies the electrode directly to the clients scalp or face when using high frequency current? | direct application |
| A measure of how much electrical energy is being used? | watt |
| A unit of electric resistance is called? | ohm |
| A volt is a unit of electric: | pressure |
| An amp is a unit of electric: | strength |
| Cords on appliances should be kept straight and free of knots, kinks, and tangles to prevent: | breaks |
| Dropping an electrical appliance into water, making it a foreign conductor, causes: | short circuit |
| Electric current moves along a path called: | conductor |
| Glass, rubber, or paper are examples of what type of material? | insulating materials |
| Light, heat, chemical and magnetic changes are produced by: | electricity |
| Materials that best transport electricity along a path called a conductor is an: | electric current |
| The 2 forms of electric current are: | AC / DC |
| To avoid the possibility of overloads and short circuits, safety devices are installed in appliances and buildings. two of these devices are fuses and: | circuit breakers |
| Two common sources of electric current are generators and: | batteries |
| When a blow dryer is on and air begins to flow, you have an example of: | closed circuit |
| The movement of electricity along a path called a conductor is a: | electric current |
Created by:
sroessler