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Chapter 4
| Question | Answer |
|---|---|
| Cords on appliances should be kept straight and free of knots, kinks, and tangles to prevent? A.tangles B.breaks C. Knots | Breaks |
| Which of the following changes alternating current to direct current? A.conductor B. Circuit C. Rectifier | Rectifier |
| The moment of electricity along a path called a conductor is an? | Electric current |
| How many watts equal one kilowatt? | 1,000 |
| An ampere is a unit of electric ? | Strength |
| Material that best transports electricity are called? | Conductors |
| To avoid the possibility of overload as and short circuits, safety devices are installed in appliances and building two of these devices ate fuses and ? | Circuit breakers |
| Dropping an electrical appliance into water, making it a foreign conductor, causes an ? | Short circuit |
| Which of the following steps should NOT be followed to break the circuit when a person comes in contact with an electric current? | Touch the person to ground the circuit |
| Electric current move along a path called? | Conductor |
| Which of the following actions would be an example of closing a circuit ? | Turning on a light switch |
| Two common sources of electric current are generators and ? | Batteries |
| How many milliamperes equal one ampere? | 1,000 |
| If someone comes in contact with an electric current you can break the circuit carrying the power by? | Turning off the fuse box or circuit breaker |
| Fires in electrical circuits can occur if ? | Too many appliances use the same wall socket and overload the circuit |
| Which of the following devices breaks the flow of current when an overload occurs ? | Circuit breaker |
| Light, heat, magnetic, and chemical changes are all produced by? | Electricity |
| Most of the electricity you use daily consist of a flow of tiny , negatively charged particles called ? | Electrons |
| A measure of how much electric energy is being used is know as a ? | Watt |
| Materials that do not allow a current to pass through them are called ? | Insulators |
| What protects people from getting shocked by electric current? | Insulators |
| A unit of electrical resistance is called ? | Ohm |
| Which of the following should NOT be done if a fire results from and overload of an electric circuit ? | Put water on it |
| When too many appliances are put on one circuit and are operated all the same time, more current flows than the line is designed to carry this is known as ? | Overload |
| What can occur anytime a "foreign conductor" comes in contact with a wire carrying current to appliances ? | Short circuit |
| Which of the following materials does NOT allow a current to pass through it ? | Alcohol |
| A volt is a unit of electric | Pressure |
| Using electric clippers in cosmetology word would be an example of which kind of electrical effect? | Mechanical |
| When a blow dryer is on and air begins to flow, you have an example of ? | Closed circuit |
| The technical name for any electrically powered appliance is ? | Load |
| Since silver and cooper transmit electricity they are called ? | Conductor |
| Which of the following descriptions identifies voltage? | Measure of how hard the electrons are being forced or pushed by a source |
| An underwriters laboratory (UL) designation indicates ? | The appliance has been certified to operate safely under the conditions specified. |
| The resistance to the motion of the electrons to conductor is the OHm's ? | Rating |
| The type of electrical current is which⦠elecTrons flow first in One Direction then in the other is? | Alternating current |
| Voltage needed frequency required and watts the appliance consumes are indicated on the? | Nameplate |
| Any electrical appliance activated by the flow of electric currents it as a blow dryer is known as? | Load |
| A current in which electrons move on an even rate and flow in only One Direction is called | Direct current |
| A shock that passes through a small part of the body causing burns and muscles contraction is called? | Local shock |
| A shock that passes through the nervous system is | General shock |
| Electrons travel on a closed path is ? | Circuit |
| The two forms of electrical current are | AC & DC |
| Glass rubber or paper are examples of what kind of materials | Insulating materials |
| Which of the following are also known as the actinic rays? | Ultraviolet |
| The minimum distance and inferred light must be placed from the clients face durning a facial is ? | 30 |
| The process of forcing an acid or Alki into the skin by applying current to the chemical is | Phoresis |
| Bacteria that causes skin infections can be killed by | Ultraviolet light |
| Which of the following has the longest wavelength | Infrared rays |
| Which of the following statements is true of visible light | Waves hit an object and are either absorbed or reflected |
| The effect that is created when a electric current travels through a water based solution in order to produce relaxing or stimulating results is known as | Electrochemical |
| What temporary effect will a negative pole produced when applying galvanic current Durning electrical therapy treatment | Increase in blood flow |
| Which of the following introduce is water-soluble treatment products into the skin | Iontophoresis |
| Durning scalp and facial massage , faradic current is used chiefly to cause ? | Muscle contractions |
| Before using ultraviolet light on a client the skin or scalp should be | Cleansed |
| The chemical breakdown of the skin caused by intense heat is called | Purolysis |
| Pure heat rays are produced by? | Infrared rays |
| Which of the following will produce a mile stimulating sensation while using high frequency current | Slightly separating the eletrode from the skin with a towel |
| Tesla, a high frequency current is known as the | Violet ray |
| If a cream used during scalp or other high frequency treatments it is required that cream does not contain any | Alcohol |
| The wavelengths that produce the longest waves of the visible spectrum are | Red |
| The application of special current or modilites that have a variety of effects on the skin is call | Electrtheraphy |
| Which of the following statements is true about Florissant lighting | Is an economical and longer-lasting night source |
| Which electro therapy treatment can call Seabring to be broken down or blackhead to be liquefied as in Deep pore cleansing | Desincrustation |
| Which of the following uses a positive pole or electrode to force positively charged solution into the skin without breaking this skin | Cataphoresis |
| Which of the following benefits is derived from UV light | Small doses tan the skin |
| Which of the following current is chemical effects that are caused by passing the current through particular acid or alkaline solutions then through body tissue and fluid | Galvanic |
| Which of the following is not a way for heat to be transferred from one object to another | Phoresis |
| Which of the following types of like carries the most energy | Ultraviolet |
| The direct current use an electro therapy treatment is | Galvanic |
| 80% of sunlight is composed a invisible raise beyond red which are called | Infrared rays |
| Which of the following types of light has the shortest wavelength | Ultraviole |
| Which of the following actions is not a safety precaution to use when working with UV light? | UV lamp is placed at least 3 inches from the area to be treated |
| Which of the following use a negative pole or electrode to force negativity charge solution into this skin without breaking the skin | Anaphoresis |
| A salon owner want to mimic natural sunlight as closely as possible in this align reception area which type of light where most likely be used to accomplish the requirements | Incandescent |
| Which of the following is not a temporary effect of the positive pole of galvanic current | Softness tissues |
| The portion of the electromagnetic spectrum humans can see is known as | Visible light |
| The more frequently use application of the faradic current and which a cosmetologist usually wear a wrist band with a moistened electrode is known as the ? | Indirect method |
| Wences the electrodes for Polarity the negative electrode will create | Smaller bubbles |
| Which type of light can't be broken into is individual wavelength at a prism | Combination |
| Which type of current is in alternating current with a medical effect to help produce muscle contractions | Sinusoidal current |
| When using galvanic current on client in a salon where precautions must a cosmetologist take in order to prevent injury to the client | Do not use over and area having broken capillaries |
| The Maxima amount of current use in a galvanic treatment should not be Exceed | 1 milliamperes |
| Electric current in a conductor cause heat by | Increasing the resistance in the line |
| Treatment with the light rays are waves is | Light therapy |
| An alternating current that can be adjust to different voltages to produce heat is | High frequency |
| A current conductor are used to direct the current from the appliance to the client skin is called | Electrode |
| When using ultraviolet rays make sure you have your client where | Protective eyewear |
| The three methods for using the Tesla current our direct application indirect application and | General electritication |
| High frequency in alternating current are characteristics of which type of electro therapy | Tesla |
| Small does of a troll violet light may help the body produce | Vitamin D |
| The most coming electrodes are the comb electrode rake electro Wrist electrode carbon electrode and | Massage roller electrode |
| White light is referred to as | Combination might |
| Which of the following conditions is not derive through application of the Tesla high frequency Current | Decrease rate of metabolism |
| The four types of current used in electrotherapy are galvanic, faradic , sinusuidal and ? | Tesla |
| If the client is holding the active electro while the cosmetologist manually stimulates the area been treated that method of Telsa Current is being used | Indirected application |
| Which of the following result is not true about cataphorosis | Softens tissues and open pures |
| The electro that is negatively charged doing a electro therapy treatment is known as and | Cathode |
| Which type of light can't great blue are cool tones | Fluo rescent |
| LED is an acronym which stands for | Light emitting diode |
| Which of the following is a benefit of using infrared light during a facial | Increase circulation |
Created by:
DeAnaO23