electrical safety test

Question 1

The term __________ current refers to a rapid and interrupted current, flowing first in one direction and then in the opposite direction.

Answer 1

alternating

Question 2

Which unit measures the resistance of an electric current?

Answer 2

ohm

Question 3

An apparatus that changes direct current to alternating current is a(n) __________.

Answer 3

inverter

Question 4

The negative electrode of an electrotherapy device is called a(n) __________.

Answer 4

cathode

Question 5

A ___________ is an extremely low level of electricity that mirrors the body’s natural electrical impulses.

Answer 5

microcurrent

Question 6

Invisible light is the light at either end of the __________ that is invisible to the naked eye.

Answer 6

v visible spectrum of light

Question 7

Electric wires can be covered with a material that does not transmit electricity, such as rubber or plastic coating. This material is known as a(n) ____________.

Answer 7

insulator

Question 8

The movement of electrons from one atom to another along a conductor is called __________.

Answer 8

electricity

Question 9

For safety, use no more than _________ plug(s) in each outlet

Answer 9

one

Question 10

A wavelength is the distance between successive peaks of ___________ waves.

Answer 10

electromagnetic

Question 11

The unit that measures how much electric energy is being used in one second is a(n) __________.

Answer 11

watt

Question 12

The thermal or heat-producing current with a high rate of oscillation or vibration that is commonly used for scalp and facial treatments is called __________ current.

Answer 12

Tesla high-frequency

Question 13

Catalysts are substances that speed up _________ reactions

Answer 13

chemical

Question 14

The unit that measures the pressure or force that pushes the electric current forward through a conductor is a(n) __________.

Answer 14

volt

Question 15

Ultraviolet A (UVA) light __________

Answer 15

often used in tanning beds

Question 16

All of the electrical appliances you use should __________.

Answer 16

be UL certified

Question 17

Constant and direct current that has a positive and negative pole and produces chemical changes when it passes through the tissues and fluids of the body is known as __________ current.

Answer 17

galvanic

Question 18

Grounding completes a(n) _________ and carries the current safely away.

Answer 18

electric circuit

Question 19

Microcurrent can be used to ___________ and restore elasticity.

Answer 19

increase muscle tone

Question 20

Which is considered a good conductor?

Answer 20

tap water

Question 21

The application of UV light must be done with the utmost care in a proper manner by a qualified professional because overexposure can lead to skin __________.

Answer 21

damage and cancer

Question 22

The device that prevents excessive current from passing through a circuit is called a(n) ___________.

Answer 22

fuse

Question 23

A switch that automatically interrupts or shuts off an electric current at the first indication of an overload is a(n) _________.

Answer 23

circuit breaker

Question 24

Electric ___________ refers to the flow of electricity along a conductor.

Answer 24

current

Question 25

When using ___________ current, the active electrode is the electrode used on the area to be treated.

Answer 25

galvanic