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Esthetics > Foundations: Electricity & Electrical Safety Exam Review > Flashcards

Foundations: Electricity & Electrical Safety Exam Review Flashcards

1
Q

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

a) an electric charge
b) electricity
c) energy flow
d) sparks

A

The answer is b:

Electricity

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2
Q

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) ______.

a) insulator
b) conductor
c) circuit
d) fuse

A

The answer is a:

Insulator

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3
Q

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

a) rectifier
b) circuit breaker
c) inverter
d) fuse box

A

The answer is c:

Inverter

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4
Q

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

a) rectified
b) alternating
c) active
d) direct

A

The answer is b:

Alternating

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5
Q

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

a) amp
b) watt
c) ohm
d) volt

A

The answer is d:

Volt

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6
Q

Which unit measures the resistance of an electric current?

a) ohm
b) watt
c) amp
d) volt

A

The answer is a:

Ohm

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7
Q

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

a) fuse
b) battery
c) kilowatt
d) ampere

A

The answer is a:

Fuse

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8
Q

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

a) voltage regulator
b) ampere interrupter
c) circuit breaker
d) battery charger

A

The answer is c:

Circuit breaker

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9
Q

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

a) anode
b) electron
c) carbide
d) cathode

A

The answer is d:

Cathode

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10
Q

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

a) electric charge
b) electric circuit
c) electron flow
d) micro current

A

The answer is b:

Electric circuit

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11
Q

All of the electrical appliances you use should ________.

a) be battery operated
b) be UL certified
c) have a two-prong plug
d) be used near water

A

The answer is b:

Be UL certified

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12
Q

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

a) alternating
b) direct
c) electric
d) galvanic

A

The answer is d:

Galvanic

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13
Q

Microcurrent can be used to _______ and restore elasticity.

a) decrease metabolism
b) increase muscle tone
c) reduce lymph
d) prevent acidic reactions

A

The answer is b:

Increase muscle tone

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14
Q

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

a) electric
b) electromagnetic
c) galvanic
d) infared

A

The answer is b:

Electromagnetic

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15
Q

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

a) electromagnetic spectrum
b) spectrum of radiance
c) radiation spectrum
d) visible spectrum of light

A

The answer is d:

Visible spectrum of light

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16
Q

Ultraviolet A (UVA) light _______.

a) is often used in tanning beds
b) has the shortest wavelength
c) is often called the burning light
d) is blocked by the ozone layer

A

The answer is a:

Is often used in tanning beds

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17
Q

Catalysts are substances that speed up ______ reactions.

a) chemical
b) acidic
c) alkaline
d) photoxic

A

The answer is a:

Chemical

18
Q

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.

a) galvanic
b) alternating
c) direct
d) high frequency

A

The answer is a:

Galvanic

19
Q

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

a) Minicurrent
b) Microcurrent
c) Milliampere
c) Biocurrent

A

The answer is b:

Microcurrent

20
Q

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.

a) Tesla alternating
b) ultraviolet
c) burning
d) Tesla high-frequency

A

The answer is d:

Tesla high-frequency

21
Q

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

a) one
b) two
c) three
d) four

A

The answer is a:

One

22
Q

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 _______.

a) allergies and irritation
b) damage and cancer
c) dryness and scaling
d) over porosity and sanguinity

A

The answer is b:

Damage and cancer

23
Q

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

a) ohm
b) volt
c) watt
d) ampere

A

The answer is c:

Watt

24
Q

If you see sparks when plugging or unplugging an appliance, ______.

a) fix it yourself immediately
b) do not use the appliance or outlet until approved
c) try a different outlet
d) let it rest then try again later

A

The answer is b:

Do not use the appliance or outlet until approved

25
Q

Electric ______ refers to the flow of electricity along a conductor

a) resistance
b) insulation
c) current
d) circuitry

A

The answer is c:

Current

26
Q

Which of the following is considered a good conductor?

a) rubber
b) cement
c) silk
d) tap water

A

The answer is d:

Tap water

27
Q

You should disconnect an appliance by ______.

a) pulling on the cord
b) stepping on the cord
c) pulling on the plug
d) twisting the plug

A

The answer is c:

Pulling on the plug

28
Q

You should not touch _______ while using an electrical appliance.

a) rubber
b) metal
c) glass
d) plastic

A

The answer is b:

Metal

29
Q

_______ is the process that introduces water-soluble products into the skin.

a) Iontophoresis
b) Desincrustation
c) Catabolism
d) Anaerobics

A

The answer is a:

Iontophoresis

30
Q

Which light rays are blocked by the ozone layer?

a) visible light
b) UVB rays
c) UVC rays
d) infared light

A

The answer is c:

UVC rays

31
Q

Within the visible spectrum of light, _______ has the shortest wavelength and _______ has the longest.

a) yellow; red
b) violet; red
c) yellow; green
d) violet; indigo

A

The answer is b:

Violet; red

32
Q

What light is known as cold light or actinic light?

a) electromagnetic
b) visible
c) infared
d) ultraviolet

A

The answer is d:

Ultraviolet

33
Q

Direct current is produced by _______ means.

a) physical
b) chemical
c) mechanical
d) photovoltaic

A

The answer is b:

Chemical

34
Q

An appliance rated at 12 amps must have a cord that is ______ as thick as one rated at 6 amps; otherwise the cord might overheat and start a fire.

a) half
b) just
c) twice
d) four times

A

The answer is c:

Twice

35
Q

The electricity in your house is measured in _____ per hour.

a) kilowatts
b) megawatts
c) kilovolts
d) milliamps

A

The answer is a:

Kilowatts

36
Q

A(n) ________ is designed to detect currents of few milliamperes trip a breaker at the receptacle or at the breaker panel to remove shock hazard.

a) UL
b) GFI
c) MRI
d) UVB

A

The answer is b:

GFI

37
Q

Which of these is not a modality used in beauty and wellness services?

a) Tesla high-frequency current
b) microcurrent
c) integrated current
d) galvanic

A

The answer is c:

Integrated current

38
Q

Anaphoresis ________.

a) softens tissues
b) closes the pores
c) contracts blood vessels
d) produces acidic reactions

A

The answer is a:

Softens tissues

39
Q

Remove lint from clothes dryers before each load to _______.

a) save electricity
b) reduce the chance of fire
c) avoid mildew
d) better dry clothes

A

The answer is b:

Reduce the chance of fire

40
Q

When should you seek medical care after an electrical shock?

a) if you were touching metal with your other hand
b) if your appliance’s cords are frayed or tangled
c) if a client witnessed the shock
d) if you are pregnant

A

The answer is d:

If you are pregnant

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