In Esthetics
Which of the following is TRUE of electricity and the beauty and wellness industry?
a. Most beauty professionals will not interact directly with electricity.
b. Most of the equipment that beauty professionals deal with is very dangerous.
c. Electricity use in the beauty industry is limited to clippers and hair dryers.
d. Advanced electrical machines require an understanding of electrical theory.
d. Advanced electrical machines require an understanding of electrical theory.
Which of the following is TRUE of a galvanic current?
a. It is a broken, inconsistent current.
b. It is an indirect current.
c. It has a positive and a negative pole.
d. It does not produce a chemical change.
c. It has a positive and a negative pole.
In order to practice good electrical safety, ALWAYS ______.
a. attempt to repair electrical appliances when they malfunction
b. twist electrical cords to protect against a short circuit
c. attempt to clean around electrical outlets while equipment is plugged in
d. disconnect appliances when they are not in use
d. disconnect appliances when they are not in use
Which of the following is TRUE of alternating current?
a. It is produced by chemical means.
b. It travels in only one direction.
c. It is most often found in batteries.
d. It is a rapid, interrupted current.
d. It is a rapid, interrupted current.
Which of the following is TRUE of electricity?
a. It occupies space, but has no mass.
b. It has mass, but occupies no space.
c. It occupies space and has mass.
d. It does not occupy space or have mass.
d. It does not occupy space or have mass.
The use of electrical currents to treat the skin is called ______.
a. electrotherapy
b. electrocution
c. electrolysis
d. electrode
a. electrotherapy
Which of the following is Tesla high-frequency current used for?
a. slowing blood circulation
b. decreasing elimination and absorption
c. decreasing skin metabolism
d. improving germicidal action
d. improving germicidal action
Which of the following measures the resistance of electrical current?
a. an ohm
b. an ampere
c. a volt
d. a watt
a. an ohm
Which of the following BEST differentiates between direct current and alternating current?
a. Direct current flows in one direction, whereas alternating current flows back and forth.
b. Direct current flows back and forth, whereas alternating current flows in one direction.
c. Direct current is not truly an electrical current, whereas alternating current is.
d. Direct current is the true form of electrical current, whereas alternating current is not.
a. Direct current flows in one direction, whereas alternating current flows back and forth.
Why is grounding important?
a. Because it protects against electrical shock.
b. Because it prevents downed wires in storms.
c. Because it turns conductors into nonconductors.
d. Because it turns direct current into alternating current.
a. Because it protects against electrical shock.
Electricity use impacts ______ of the services that beauty professionals offer their clients.
a. all
b. most
c. about half
d. a small handful
a. all
Which of the following reactions can be expected when using cataphoresis?
a. a closing of pores
b. a stimulation of nerves
c. an increase in blood supply
d. a softening of tissues
a. a closing of pores
What does a watt measure?
a. how much electric energy is being used in one second
b. the pressure or force that pushes electric current through a conductor
c. the strength of an electric current
d. the resistance of an electric current
a. how much electric energy is being used in one second
Which of the following is an example of a conductor?
a. tap water
b. rubber
c. glass
d. cement
a. tap water
Which of the following BEST differentiates between long wavelengths and short wavelengths?
a. Long wavelengths have low frequency; short wavelengths have high frequency.
b. Short wavelengths have low frequency; long wavelengths have high frequency.
c. Long wavelengths are visible; short wavelengths are not.
d. Short wavelengths are visible; long wavelengths are not.
a. Long wavelengths have low frequency; short wavelengths have high frequency.
Which of the following is TRUE of the poles of an electric current?
a. They are either positive or negative.
b. They are either left or right.
c. They are either direct or alternating.
d. They are either conductive or nonconductive.
a. They are either positive or negative.
Which of the following reactions can be expected when using anaphoresis?
a. a closing of pores
b. a stimulation of nerves
c. a decrease in blood supply
d. a hardening of tissues
b. a stimulation of nerves
Which of the following is NOT good electrical safety advice?
a. Read all electrical safety instructions carefully.
b. Inspect all electrical equipment regularly.
c. Pull on the cord, not the plug, when disconnecting an electrical appliance.
d. Keep electrical cords off the floor and away from everyone’s feet.
c. Pull on the cord, not the plug, when disconnecting an electrical appliance.
Which of the following is a good example of an insulator?
a. copper
b. tap water
c. wood
d. steel
c. wood
What is TRUE of a wire that is not large enough to carry the electrical current passing through it?
a. It will not power the device.
b. It will overheat.
c. It will electrocute the user.
d. It will save energy.
b. It will overheat.
Which of the following BEST differentiates a positive electrode from a negative electrode?
a. The positive electrode is called a cathode; the negative electrode is called an anode.
b. The positive electrode is called an anode; the negative electrode is called a cathode.
c. The positive electrode has an electric charge; the negative electrode does not.
d. The positive electrode has no electric charge; the negative electrode does.
b. The positive electrode is called an anode; the negative electrode is called a cathode.
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?
a. disinfecting wipes
b. heavy rubber tape
c. a rag
d. a heavier gauge wire
b. heavy rubber tape
Which of the following should you do if you receive a light shock sensation while using an electrical appliance?
a. Continue using the appliance with caution.
b. Attempt to repair the appliance immediately.
c. Unplug the appliance from the wall.
d. Give the appliance a short break before using it again.
c. Unplug the appliance from the wall.
Why is copper used in electrical wiring and electrical motors?
a. Because it is inexpensive.
b. Because it is a good conductor.
c. Because it is a good insulator.
d. Because it provides safeguards against electrocution.
b. Because it is a good conductor.
Which percentage of natural sunlight is visible, making up the visible spectrum of light?
a. 10%
b. 35%
c. 70%
d. 95%
b. 35%