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Questions and Answers
Which of the following best describes the relationship between amperage and electric current?
Which of the following best describes the relationship between amperage and electric current?
What is the primary function of a fuse in an electrical circuit?
What is the primary function of a fuse in an electrical circuit?
In what scenario would a fuse most likely blow out?
In what scenario would a fuse most likely blow out?
In modern electrical circuits, what device has largely replaced fuses, offering the advantage of being resettable?
In modern electrical circuits, what device has largely replaced fuses, offering the advantage of being resettable?
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Why is it important to disconnect an appliance and check connections before resetting a circuit breaker?
Why is it important to disconnect an appliance and check connections before resetting a circuit breaker?
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What is the purpose of the grounding pin (third prong) on some electrical appliances?
What is the purpose of the grounding pin (third prong) on some electrical appliances?
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Why is one prong slightly larger than the other on a standard two-prong plug?
Why is one prong slightly larger than the other on a standard two-prong plug?
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In a standard two-prong plug, which prong is the 'hot' wire and what is its role?
In a standard two-prong plug, which prong is the 'hot' wire and what is its role?
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Why is it important to regularly flush microdermabrasion equipment with distilled water?
Why is it important to regularly flush microdermabrasion equipment with distilled water?
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A client with which condition should avoid microdermabrasion due to contraindications?
A client with which condition should avoid microdermabrasion due to contraindications?
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How does Vitamin C in C-Shield Anti-Pollution Drops prevent hyperpigmentation, according to GLO Skin Beauty?
How does Vitamin C in C-Shield Anti-Pollution Drops prevent hyperpigmentation, according to GLO Skin Beauty?
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During iontophoresis, what is the purpose of cataphoresis?
During iontophoresis, what is the purpose of cataphoresis?
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How does incandescent lighting affect the appearance of skin in a workspace?
How does incandescent lighting affect the appearance of skin in a workspace?
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Why is it recommended to use power strips with surge protectors when needing multiple plugs in one area?
Why is it recommended to use power strips with surge protectors when needing multiple plugs in one area?
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What is the primary function of a Ground Fault Interrupter (GFI)?
What is the primary function of a Ground Fault Interrupter (GFI)?
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What should you do if you receive a light shock while using an electrical appliance?
What should you do if you receive a light shock while using an electrical appliance?
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What is the best course of action if an electrical appliance is dropped in water and the outlet is NOT GFI protected?
What is the best course of action if an electrical appliance is dropped in water and the outlet is NOT GFI protected?
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Why is it important not to alter an electrical plug?
Why is it important not to alter an electrical plug?
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What does a green light on a GFI socket typically indicate?
What does a green light on a GFI socket typically indicate?
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Which of the following is a recommended guideline for the safe use of electrical equipment?
Which of the following is a recommended guideline for the safe use of electrical equipment?
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What should you do if you observe sparks when plugging in or unplugging an appliance?
What should you do if you observe sparks when plugging in or unplugging an appliance?
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Which of the following best explains the difference in how direct current (DC) and alternating current (AC) are produced?
Which of the following best explains the difference in how direct current (DC) and alternating current (AC) are produced?
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An appliance in a salon is rated at 1500 watts. How many kilowatts is this appliance using?
An appliance in a salon is rated at 1500 watts. How many kilowatts is this appliance using?
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A salon technician wants to use a device that requires direct current (DC), but only has access to an alternating current (AC) outlet. Which apparatus would be needed to power the device?
A salon technician wants to use a device that requires direct current (DC), but only has access to an alternating current (AC) outlet. Which apparatus would be needed to power the device?
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Why is it crucial for a hairdryer rated at 12 amps to have a thicker cord than one rated at 6 amps?
Why is it crucial for a hairdryer rated at 12 amps to have a thicker cord than one rated at 6 amps?
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In the context of electrical current, what does resistance (measured in ohms) directly affect?
In the context of electrical current, what does resistance (measured in ohms) directly affect?
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A client who is afraid of electric current is undergoing a facial treatment. Which of the following modalities should be avoided due to contraindications?
A client who is afraid of electric current is undergoing a facial treatment. Which of the following modalities should be avoided due to contraindications?
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Facial treatments utilize electric currents. Why is it important to use a current measured in milliamperes (mA) rather than amperes (A)?
Facial treatments utilize electric currents. Why is it important to use a current measured in milliamperes (mA) rather than amperes (A)?
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A device is labeled '120V, 60W'. What does the '60W' indicate about the device?
A device is labeled '120V, 60W'. What does the '60W' indicate about the device?
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An esthetician is using a Wood's Lamp during a skin analysis. What is the primary purpose of this lamp?
An esthetician is using a Wood's Lamp during a skin analysis. What is the primary purpose of this lamp?
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After noticing the glass jar is cracked on your steamer, what would be the best course of immediate action?
After noticing the glass jar is cracked on your steamer, what would be the best course of immediate action?
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How are inverters and rectifiers similar, and how do they differ?
How are inverters and rectifiers similar, and how do they differ?
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When should the vacuum machine be integrated during a facial treatment?
When should the vacuum machine be integrated during a facial treatment?
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Which of the following is a crucial safety precaution to observe when operating a facial steamer during a skincare treatment to prevent potential hazards?
Which of the following is a crucial safety precaution to observe when operating a facial steamer during a skincare treatment to prevent potential hazards?
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Why is it important to use heat-resistant dishes when warming products in a hot towel cabinet?
Why is it important to use heat-resistant dishes when warming products in a hot towel cabinet?
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How should glass devices of a vacuum machine be properly cleaned and disinfected to ensure hygiene and prevent cross-contamination between clients?
How should glass devices of a vacuum machine be properly cleaned and disinfected to ensure hygiene and prevent cross-contamination between clients?
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A client with uncontrolled rosacea is scheduled for a facial. What precaution should the esthetician take regarding the use of hot towels?
A client with uncontrolled rosacea is scheduled for a facial. What precaution should the esthetician take regarding the use of hot towels?
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How does increasing the frequency of an electromagnetic wave typically affect its energy and penetration?
How does increasing the frequency of an electromagnetic wave typically affect its energy and penetration?
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If a light source emits electromagnetic waves with a wavelength shorter than 380 nanometers, which of the following is most likely true?
If a light source emits electromagnetic waves with a wavelength shorter than 380 nanometers, which of the following is most likely true?
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A scientist is designing a device to deliver energy deep into the skin. Considering the properties of different wavelengths, which type of light should they primarily use?
A scientist is designing a device to deliver energy deep into the skin. Considering the properties of different wavelengths, which type of light should they primarily use?
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What role does adenosine triphosphate (ATP) play in the context of light absorption by the human body?
What role does adenosine triphosphate (ATP) play in the context of light absorption by the human body?
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Approximately what percentage of natural sunlight is made up of invisible light?
Approximately what percentage of natural sunlight is made up of invisible light?
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Flashcards
Voltage
Voltage
A unit measuring the pressure that pushes electric current through a conductor.
Normal Electric Wall Socket Voltage
Normal Electric Wall Socket Voltage
Standard wall sockets supply 120 volts, while larger appliances often use 240 volts.
Fuse
Fuse
A safety device that melts to stop excessive current from passing through a circuit.
Circuit Breaker
Circuit Breaker
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Grounding
Grounding
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Hot Wire vs Neutral Wire
Hot Wire vs Neutral Wire
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Three-Prong Plug
Three-Prong Plug
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Electrical Current
Electrical Current
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Direct Current (DC)
Direct Current (DC)
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Alternating Current (AC)
Alternating Current (AC)
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Inverter
Inverter
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Rectifier
Rectifier
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Watt
Watt
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Ohm
Ohm
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Kilowatt (kW)
Kilowatt (kW)
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Milliampere (mA)
Milliampere (mA)
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Skin Analysis
Skin Analysis
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Contraindications
Contraindications
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Hot Towel Cabinet
Hot Towel Cabinet
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Wood’s Lamp
Wood’s Lamp
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Best Practices of The Steamer
Best Practices of The Steamer
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Vacuum Machine
Vacuum Machine
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Maintenance for The Vacuum Machine
Maintenance for The Vacuum Machine
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Germicidal Cleansing
Germicidal Cleansing
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Ground Fault Interrupter (GFI)
Ground Fault Interrupter (GFI)
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GFI Reset
GFI Reset
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Overloading Circuits
Overloading Circuits
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Power Strip with Surge Protector
Power Strip with Surge Protector
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Fire Extinguisher Check
Fire Extinguisher Check
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Response to Light Shock
Response to Light Shock
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Appliance Dropped in Water
Appliance Dropped in Water
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Electrical Safety Guidelines
Electrical Safety Guidelines
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Microdermabrasion Benefits
Microdermabrasion Benefits
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Microdermabrasion Contraindications
Microdermabrasion Contraindications
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Iontophoresis
Iontophoresis
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C-Shield Anti-Pollution Drops
C-Shield Anti-Pollution Drops
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Lighting Effects on Skin
Lighting Effects on Skin
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Long Wavelengths
Long Wavelengths
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Short Wavelengths
Short Wavelengths
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Visible Light
Visible Light
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Invisible Light
Invisible Light
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Photoreceptive Melanin
Photoreceptive Melanin
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Study Notes
Light Energy
- Light energy travels as waves.
- White light contains all colors of the rainbow.
- Light is refracted (bent) when it passes through a prism.
- Electromagnetic waves are made of electric and magnetic fields.
- Waves travel in wavelengths.
- Infrared radiation is invisible but provides warmth.
- Infrared is used in thermal imaging and remote controls.
- Infrared is used in the synthesis of vitamin D.
Electricity
- Electricity is the movement of electrons.
- Electricity is a form of energy.
- Electricity does not occupy space or have mass.
- It can create magnetic, chemical, and thermal effects.
- Electric current is the flow of electricity.
- Materials are either conductors or insulators.
- Conductors allow electricity to flow easily.
- Copper is a good conductor.
- Water is a poor conductor but can be a good conductor if it has ions.
- Insulators do not allow electricity to flow.
- Rubber, silk, wood, glass, and cement are good insulators.
Electric Circuits
- A complete circuit allows current to flow continuously from a source through a conductor, back to the source.
Types of Electrical Current
- Direct Current (DC): Constant, even flow; travels in one direction; produced by chemical means (batteries).
- Alternating Current (AC): Rapid, interrupted flow; changes direction; produced by mechanical means (60 times per second).
Electrical Units
- Watt (W): Unit of electrical power; measures how much energy is used per second (e.g., 40-watt light bulb uses 40 watts per second).
- Ohm: Unit of electrical resistance; measures the opposition to current flow.
- Kilowatt (kW): 1000 watts.
- Milliampere (mA): 1/1000 of an ampere.
Electrical Safety Devices
- Fuse: Prevents excessive current by melting or blowing when overloaded and needs to be replaced.
- Circuit Breaker: Automatically interrupts the flow of current when overload is detected, and it can be reset.
Grounding
- It completes an electrical circuit and carries the current safely away.
- Electrical appliances have at least two rectangular prongs, one slightly larger than the other.
- The hot wire is the smaller prong that must be inserted first into the outlet.
- The larger prong completes the circuit.
- Some appliances have a third grounding pin.
Other Electrical Concepts
- Ground Fault Interrupter (GFI): Designed to protect from electrical shock when there is a leak in the circuit.
- Electrotherapy: Uses electrical equipment for corrective and therapeutic benefits.
- Polarity: Refers to the poles of an electric current (positive or negative).
- Anode: Positive pole, marked with a "+" sign.
- Cathode: Negative pole, marked with a "-" sign.
- Iontophoresis: Process of introducing positive or negative products using electric current.
- Microcurrent: Extremely low-level electrical current used for firming, toning, and healing.
- Tesla high-frequency current (violet ray): Thermal or heat-producing current with high oscillation rate.
- Galvanic current: Direct current used for desincrustation and ionic iontophoresis.
- Vacuum Machines: Used for removing impurities and lymphatic massage.
- High-frequency machines: Uses alternating current (high frequency oscillating), produces heat and is suitable for product penetration; has no polarity.
- Spray Machines: Used to add moisture and hydrate skin.
Specific Equipment
- Hot Towel Cabinets: Used for client towels and products for disinfection.
- Wood's Lamp: Uses filtered black light to illuminate fungi and bacterial disorders.
- Skin Scopes: Use UV light with an interior mirror to examine skin.
Types of Light
- Visible light: Electromagnetic waves we can see (380-700 nanometers).
- Infrared light: Invisible light, next to red light on the electromagnetic spectrum at 800nm to 1000nm; used for heat and penetrates deeper.
- UV light: Invisible light with higher energy than visible light; has three types: UVA (longest wavelengths, penetrates deep); UVB (associated with sunburns, shorter wavelengths); and UVC (blocked by ozone layer).
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Description
Test your knowledge on electrical circuits, including the role of amperage, fuses, and circuit breakers. This quiz also covers safety precautions and the purpose of grounding in electrical devices. Perfect for students and professionals in electrical engineering.