Chapter 8: Electricity & Light
Electrical Safety, Modalities & Light Therapy|37 Questions|Board Exam Prep
Vocabulary Matching
Match each numbered term with the correct lettered definition.
Fill in the Blank
Complete each statement with the correct term or phrase.
The unit of electrical pressure is called a
A is a device that prevents electrical overload by interrupting the circuit
Materials that do not conduct electricity well are called
The two types of electric current are direct current (DC) and current (AC)
High-frequency current produces a effect and is used to treat scalp conditions
Galvanic current is a constant current used for chemical effects in skin care
rays are invisible light rays used for their germicidal effects
The unit of measurement for electrical power consumption is the
Multiple Choice
Select the best answer for each board-exam style question.
Which type of current is used in wall outlets in the United States?
A material that allows electricity to flow through it easily is called a:
High-frequency current is used in barbering primarily for its:
The unit of measurement for electrical current strength is the:
Galvanic current is used for all of the following EXCEPT:
Which safety device automatically shuts off electrical flow when a circuit is overloaded?
UV light is used in barbershops primarily for:
What should a barber do if an electrical appliance falls into water?
True / False
Write T for True or F for False in the blank.
A conductor allows electricity to flow freely, while an insulator resists electrical flow.
Direct current (DC) and alternating current (AC) are the same type of electrical current.
High-frequency current can be used on the scalp to stimulate blood circulation.
It is safe to use electrical appliances near water in a barbershop.
A watt measures the amount of electrical energy being used.
Galvanic current is an alternating current commonly used for permanent waving.
Ultraviolet light has germicidal properties and can kill certain bacteria.
Rubber and glass are good conductors of electricity.
Short Answer
Answer each question in 2-3 complete sentences.
Explain the difference between a conductor and an insulator and give two examples of each found in a barbershop.
Describe the uses of high-frequency current in barbering and explain how it benefits the scalp and skin.
Why is electrical safety important in a barbershop, and what precautions should barbers take when using electrical equipment?