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Which of the following is True of electricity and the beauty and wellness industry
Advanced electrical machines require an understanding of electrical theory.
Which of the following measures the resistance of electrical current?
an ohm
In order to practice good electrical safety, ALWAYS ____.
disconnect appliances when they are not in use
For which of the following would microcurrent be MOST useful?
reducing redness and inflammation
Which of the following is true of infrared light?
It produces heat.
Just as Sandra turned on her electrical device, all of the appliances in the business shut off and the lights went dark. It turned out that Sandra's device, added to all of the other appliances that were in use for, was asking for too much amphridge. Which of the following did Sandra most likely have to do to quickly get the power in the establishment back on?
Flip the main circuit switch on the circuit breaker.
Manny is excited to use his new series of hand held appliances on his clients this week. His boss had told Manny to come in to work prepared to get used to the new equipment. All Manny knows is that the appliances are expensive and top of the line and that they run on alternating current. Manny has already cleaned off his station, made sure that he has ample space to work, property disposed of his old appliances, and picked up plenty of long lasting batteries for the new appliances. New appliances. What mistakes, if any, has Manny made?
Manny should not have purchased any batteries.
Electricity use impacts ___ of the services that beauty professionals offer their clients.
all
What does a watt measure?
how much electric energy is being used in one second
Which of the following should you do if you receive a light shock sensation while using an electrical appliance?
Unplug the appliance from the wall.
Which of the following is Tesla high-frequency current used for?
improving germicidal action
Which of the following is true of ultraviolet light?
It is invisible.
Alyssa noticed that the electrical device she uses on the job has a 3 pronged plug that was to be inserted into a 3 pronged outlet in the wall. Since there were only 2 pronged outlets in the room, however, Alyssa purchase an adapter to connect her 3 pronged device into a 2 pronged outlet. Why was this a bad idea?
Adapting a 3 pronged plug to fit a 2 pronged outlet eliminates the intended grounding.
As a business owner, Brenda knows the importance of electrical safety. Each evening, she is the last person to leave work. Before she leaves, she makes sure that all electrical appliances are shut off and unplugged. Any that have been left plugged in, she carefully unplugs by pulling on the plug, not the cord. Every morning Brenda arrives early to work. Before any other employee arrives, she 1st plugs all of the appliances back in, then carefully cleans them. Finally, she makes sure that all cords to the appliances are tucked away and not left in the middle of the room for customers and employees to trip over. What, if any, has Brenda done wrong?
Brenda should not clean the appliances while they are plugged in.
Which of the following types of effects does electricity exhibit?
magnetic, thermal, and chemical
What is TRUE of a wire that is not large enough to carry the electrical current passing through it?
It will overheat.
The use of electrical currents to treat the skin is called ___
electrotherapy
A condition that prohibits certain treatments is called a ___
contraindication
Which type of light prompts the skin to produce beneficial vitamin D?
Ultraviolet light
Klaus has noticed that, throughout the establishment, there are grounded fault interruptors (GFIs) in the walls beside all sinks and in the bathrooms and the employee kitchen. Why are these types of receptacles strategically placed in these locations?
GFIs are required in places where shock hazard are likely (such as near any running or sitting water).
You are the manager of a beauty business. You are startled during a busy afternoon when one of your best beauty pros, Wanda, start screaming that her electrical device, which she is still holding on to, is sending powerful shocks up her hand and arm. What should you do?
Yell to Wanda to drop the device immediately.
Which of the following is TRUE of electricity?
It does not occupy space or have mass.
Which of the following is an example of an electrical safety device that you may encounter when working in a salon, spa, or barbershop?
a circuit breaker
Which of the following is used as an applicator for directing electric current from an electrotherapy device to the client's skin?
an electrode
The electromagnetic spectrum is the name given to ___.
all of the forms of energy that exist
Light therapy is also known as ____.
Phototherapy
Jamil plugged an electrical device into the outlet on the wall and immediately started to spark. Jamil, very startled, wasn't sure what to do. What should Jamil do
Unplug the device immediately and use another until that 1 can be repaired.
Your client, Rachel, sat down with you to discuss her client and take form before she receives Tesla high frequency current, which is commonly used in electrical facial and scalp treatments. What might Rachel have told you that would lead you to rule out Tesla high frequency current as a treatment option for her?
Rachel told you that she is pregnant.
Why is copper used in electrical wiring and electrical motors?
Because it is a good conductor.
Which of the following is an electrical safety device that is designed to prevent excessive current from passing through a circuit by blowing out or melting when a wire becomes too hot from overloading the circuit with too much current?
a fuse
Which of the following is TRUE of the poles of an electrical current?
They are either positive or negative.
Which of the following types of energy is most likely associated with nuclear power plants?
Gamma rays
Cornelius is opening a beauty business. He will need to have a thorough understanding of electricity for all except which of the following reasons?
Cornelius will need to be able to quickly repair electrical devices when they malfunction.
While working on a customer, Cindy accidentally dropped her electrical device into a sink full of water. Which of the following should Cindy do?
Cindy should quickly unplug the device from the outlet.
You are a worker at a high end establishment that uses cutting edge technology and techniques and treating clientele perincline tell. Your newest client, Gregory, has just told you that his doctor is recommending UV light therapy as part of his overall path toward better health. Which is the following is most likely the reason why gregory's doctor has recommended this particular type of light exposure as part of his therapy?
Gregory is very low on vitamin D.
Which of the following is an example of an insulator?
tap water
Why is grounding important?
Because it protects against electrical shock.
Which of the following BEST differentiates a positive electrode from a negative electrode?
The positive electrode is called an anode; the negative electrode is called a cathode.
Which of the following is true of florescent light ?
It is cooler than natural sunlight
Alycia notices a prior employee tried to repair a crack in the power cord on an electrical device with an insulator. Which of the following may have been used as an insulator?
Heavy rubber tape
Many of Wilson's clients complained to him that their skin always appears very bluish-green when they are sitting in his chair. Which of the following would most likely be the cause of this?
The fluorescent lighting just above Wilson's station.
Which of the following is a good example of an insulator?
wood
The third circular electrical connection on a three-prong plug is called a ___
grounding pin
Which of the following is TRUE of a galvanic current?
It has a positive and negative pole
How does energy move through space?
In waves
Julie relies on a constant, even flow of electricity that is produced by chemical means for the wireless tools she uses in her daily work. What is Julie looking for?
A direct current
Owner Samuel's client, Janine, has just learned she has skin cancer. While Janine's doctor told her that the cancer is most likely treatable, she is still concerned about further exposure and damage. She asked Samuel which type of light caused her skin cancer. Which of the following types of light most likely did so?
Ultraviolet B light
Which of the following BEST differentiates between direct and alternating current?
Direct current flows in one direction, whereas alternating current flows back and forth.
In which of the following locations would a GFI MOST likely be required?
a bathroom
Which of the following reactions can be expected when using cataphoresis?
a closing of pores
Which of the following best differentiates between long wavelength and short wavelength?
Long wavelengths have low frequency; short wavelengths have high frequency.
Jane noticed that as she was working on a client throughout the morning, the morning, the electrical extension cord from her electrical device to the outlet was getting hotter and hotter. Knowing this, which of the following is most likely true?
The extension cord's gauge is too small to support the amphridge rating of the electrical device
Maria knows that light therapy is most likely the best solution for her client, James. Assuming Maria is correct, which of the following is least likely to be true of James?
James wants to lighten his hair color.
Which of the following is TRUE of alternating current?
It is a rapid, interrupted current.
Which of the following in NOT good electrical safety advice?
Pull on the cord, not the plug, when disconnecting an electrical appliance.
Which of the following reactions can be expected when using anaphoresis?
a stimulation of nerves
Which percentage of natural sunlight is visible, making up the visible spectrum of light?
35%
Jeremy is having a hard time getting his electrical equipment to work properly for his clients. The technician who came in to look at the situation advised Jeremy that the current is not able to flow through the wires efficiently. Why is this most likely the cause?
The resistance(ohms) is stronger than the force (volts)
You are an instructor of beauty and wellness courses at a local vocational school. Ursula, a student of yours, ask you why it is so important that beauty professionals have a thorough understanding of electricity. What do you tell her?
Without an understanding of basic electricity, she will not be able to use professional electrical appliances efficiently and safely.