Which of the following BEST differentiates between direct current and alternating current?

Direct current flows in one direction, whereas alternating current flows back and forth.

Direct current is the true form of electrical current, whereas alternating current is not.

Direct current flows back and forth, whereas alternating current flows in one direction.

Direct current is not truly an electrical current, whereas alternating current is.

Why is copper used in electrical wiring and electrical motors?

Because it is a good conductor.

Because it provides safeguards against electrocution.

Because it is a good insulator.

Manny is excited to use his new series of hand-held appliances on his clients this week. His boss has 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, properly disposed of his old appliances, and picked up plenty of long-lasting batteries for the new appliances. What mistakes, if any, has Manny made?

Manny should not have purchased any batteries.

Manny should not have disposed of his old equipment.

Manny should not have cleaned out and made extra space at his station.

Manny has not made any mistakes.

For which of the following would microcurrent be MOST useful?

reducing redness and inflammation

removing the natural protective barrier of the skin

slowing healing time for acne lesions

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 employees arrive, she first 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 anything, has Brenda done wrong?

Brenda should not clean the appliances while they are plugged in.

Brenda should leave all appliance cords out in the middle of the floor so that people can see them.

Brenda should unplug the appliances by the cord, not the plug.

Jane noticed that as she was working on a client throughout 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 amperage rating of the electrical device.

The electrical device has more volts than the outlet it is plugged into.

The electrical device has fewer volts than the outlet it is plugged into.

The extension cord’s gauge is too large to support the amperage rating of the electrical device.

Which of the following is Tesla high-frequency current used for?

decreasing elimination and absorption

Alyssa noticed that the electrical device she uses on the job has a three-pronged plug that was to be inserted into a three-pronged outlet in the wall. Since there were only two-pronged outlets in the room, however, Alyssa purchased an adapter to connect her three-pronged device into a two-pronged outlet. Why was this a bad idea?

Adapting a three-pronged plug to fit into a two-pronged outlet eliminates the intended grounding.

Adapting a three-pronged plug to fit into a two-pronged outlet switches direct current into alternating current.

Adapting a three-pronged plug to fit into a two-pronged outlet makes the conductor an inductor.

Adapting a three-pronged plug to fit into a two-pronged outlet changes the appliance’s amperage.

You are the manager of a beauty business. You are startled during a busy afternoon when one of your best beauty pros, Wanda, starts screaming that her electrical device, which she is still holding onto, is sending powerful shocks up her hand and arm. What should you do?

Yell to Wanda to drop the device immediately.

Yell to Wanda to keep hold of the device and grab a conductor with her other hand.

Run over to Wanda and grab the device out of her hand.

Yell to Wanda to keep hold of the device and grab an insulator with her other hand.

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.

James wants to eliminate some of his age spots.

James wants to get rid of the wrinkles on his forehead.

James wants to remove the hair on his back.

Which of the following is TRUE of fluorescent light?

It is cooler than natural sunlight.

It is warmer than natural sunlight.

It is a type of incandescent light.

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.

Continue using the appliance with caution.

Give the appliance a short break before using it again.

Attempt to repair the appliance immediately.

Many of Wilson’s clients complain 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

the ultraviolet lighting just above Wilson’s station

the incandescent lighting just above Wilson’s station

the natural sunlight that comes in from the window beside Wilson’s station

You are a worker at a high-end establishment that uses cutting-edge technology and techniques in treating clientele. 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 of 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.

Gregory is at high risk for developing skin cancer.

Gregory is developing premature wrinkles.

The electromagnetic spectrum is the name given to ______.

all of the forms of energy that exist

all forms of energy except for gamma rays

all forms of energy except for X-rays

You are an instructor of beauty and wellness courses at a local vocational school. Ursula, a student of yours, asks 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 effectively and safely.

In order to someday make it as her own salon, spa, or barbershop owner, economic viability will be reliant on her skills as an electrician.

As she progresses toward a successful career, her clients will become more and more expectant of her knowledge in electricity.

Electricity is the backbone of the beauty and wellness industry and if she lacks a solid understanding of it she cannot be a part of that industry.

Which of the following is TRUE of alternating current?

It is a rapid, interrupted current.

It travels in only one direction.

It is produced by chemical means.

It is most often found in batteries.

Which of the following is TRUE of the poles of an electric current?

They are either positive or negative.

They are either direct or alternating.

They are either conductive or nonconductive.

Which of the following types of effects does electricity exhibit?

magnetic, thermal, and chemical

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.

The positive electrode has an electric charge; the negative electrode does not.

The positive electrode is called a cathode; the negative electrode is called an anode.

The positive electrode has no electric charge; the negative electrode does.

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 case?

The resistance (ohms) is stronger than the force (volts).

The amperage of the appliances is rated higher than the cords being used.

The force (volts) is stronger than the resistance (ohms).

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, was asking for too much amperage. 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.

Lower the amperage of the appliances in use.

Replace the conductors in the establishment with inductors.

Change the current in the establishment from direct to alternating.

Your client, Rachel, sat down with you to discuss her client intake 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.

Rachel told you that she feels she needs to increase both elimination and absorption.

Rachel told you that she has bad acne.

Rachel told you that her condition is specific to her scalp.

Klaus has noticed that, throughout the establishment, there are ground fault interrupters (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).

GFIs are most useful in salons, spas, and barbershops because when multiple appliances are in use, GFIs must be in place.

GFIs are required wherever direct current is transferred to alternate current (such as in bathrooms).

GFIs are most useful in salons, spas, and barbershops because appliances that heat up can only operate when a GFI is in place.

What does a watt measure?

how much electric energy is being used in one second

the resistance of an electric current

the pressure or force that pushes electric current through a conductor

the strength of an electric current

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.

Cornelius will rely on a variety of electrical devices.

Cornelius will rely on lighting and air temperature controls for the comfort of his clients.

Cornelius will need to be able to properly care for a variety of electrical devices.

Electricity & electrical safety 2023

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Because it turns conductors into nonconductors.

Because it prevents downed wires in storms.

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Electricity & electrical safety 2023

59 questions

Which of the following is TRUE of electricity and the beauty and wellness industry?

Electricity use impacts ______ of the services that beauty professionals offer their clients.

How does energy move through space?

Which of the following is TRUE of ultraviolet light?

Which of the following is TRUE of electricity?

Which of the following types of energy is most likely associated with nuclear power plants?

Why is grounding important?

Which of the following BEST differentiates between direct current and alternating current?

Why is copper used in electrical wiring and electrical motors?

Which of the following is TRUE of infrared light?

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