102E.04 SCIENCE

Materials that do not allow a current to pass through them are called: Question 36 Select one: a. insulators b. conductors c. open circuits d. closed circuits

Insulators

Any electrical appliance activated by the flow of electric current such as a facial steamer is known as a(n): Question 2 Select one: a. load b. electron c. insulator d. conductor

Load

How many milliamperes equal one ampere? Question 22 Select one: a. 10 b. 100 c. 1000 d. 10000

1000

How many watts equal one kilowatt? Question 16 Select one: a. 10 b. 100 c. 1000 d. 10000

1000

Which of the following safety guidelines is important to keep in mind when using electrical equipment? Question 42 Select one: a. avoid contact with water and metal surfaces b. keep electrical equipment connected at all times c. attempt to repair electrical equipment yourself d. leave clients unattended while connected to electrical equipment

Avoid contact with water and metal surfaces

Two common sources of electric current are generators and: Question 24 Select one: a. watts b. loads c. batteries d. frequencies

Batteries

How does a fuse act as an electricity safety measure? Question 48 Select one: a. closes the circuit when it becomes open b. keeps electric current directed the right way c. pushes more current through than the line is designed to carry d. breaks the circuit, cutting the flow of electricity when an overload occurs

Breaks the circuit, cutting the flow of electricity when an overloaded occurs

Why is it dangerous to use any electrical cord with a break in it? Question 18 Select one: a. it will explode b. may break a circuit c. can cause electrical shock d. could cut off power to the barbershop

Can cause electrical shock

Electrons travel on a closed path, called a: Question 39 Select one: a. circuit b. conductor c. insulator d. frequency

Circuit

Electrons travel on a closed path, called a: Question 47 Select one: a. circuit b. conductor c. insulator d. frequency

Circuit

Which of the following items is a reusable safety device that breaks the flow of current when an overload occurs? Question 34 Select one: a. fuse b. insulator c. grounding wire d. circuit breaker

Circuit breaker

To avoid the possibility of overloads and short circuits, safety devices are installed in appliances and buildings. Two of these devices are fuses and: Question 50 Select one: a. insulators b. open circuits c. circuit breakers d. grounding wires

Circuit breakers

In the event of being trapped in asmoke-filled room or building, do all of the following actions EXCEPT: Question 49 Select one: a. stay low to the ground b. check all doors for heat c. open the windows for air d. close the windows to trap the air

Close the windows to trap the air

When a facial steamer is on and steam begins to flow, you have an example of a(n): Question 26 Select one: a. open circuit b. series wiring c. closed circuit d. parallel wiring

Closed circuit

When a facial steamer is on and steam begins to flow, you have an example of a(n): Question 43 Select one: a. open circuit b. series wiring c. closed circuit d. parallel wiring

Closed circuit

Electric current moves along a path called a(n): Question 41 Select one: a. volt b. watt c. conductor d. insulator

Conductor

Materials that best transport electricity are called: Question 10 Select one: a. watts b. amps c. insulators d. conductors

Conductors

Since silver and copper transmit electricity, they are: Question 40 Select one: a. electrons b. insulators c. conductors d. closed circuits

Conductors

The two forms of electric current are: Question 23 Select one: a. DC and AC b. AD and BC c. AB and CD d. hot and cold

DC and AC

A current in which electrons move at an even rate and flow in only one direction is called: Question 6 Select one: a. overload b. short circuit c. direct current d. alternating current

Direct current

A waveform is the visual representation of the output current that varies in time, strength and: Question 12 Select one: a. length b. polarity c. direction d. variation

Direction

Which of the following protocols helps prevent fires? Question 46 Select one: a. open windows for air b. smother the fire with a rug c. put water on an electrical fire d. dispose of frayed orexposed wires

Dispose of frayed or exposed wires

Light, heat, chemical and magnetic changes are all produced by: Question 17 Select one: a. force b. electricity c. conductors d. a short circuit

Electricity

If an electrical fire occurs in the salon/spa, use water to extinguish it. Question 21 Select one: True False

False

What type of outlet is recommended for installation in any area where water and electricity could come into contact? Question 19 Select one: a. CFGI b. FGCI c. GFCI d. IFGC

GFCI

Which of the following materials doesn't allow current to pass through it? Question 33 Select one: a. metal b. water c. carbon d. glass

Glass

Plastic, rubber or paper are examples of what type of materials? Question 35 Select one: a. watt materials b. prism materials c. insulating materials d. conducting materials

Insulating materials

Which of the following descriptions identifies a volt? Question 13 Select one: a. number of electrons flowing on a line b. measure of how difficult it is to push electrons through a resistor c. measure of how difficult it is to push electrons through a conductor d. measure of how hard the electrons are being forced or pushed by a source

Measure of how hard the electrons are being forced, or pushed by a source

Volts and frequency needed and watts the appliance consumes are indicated on the: Question 38 Select one: a. conductor b. nameplate c. circuit breaker d. grounding wire

Nameplate

Polarized outlets feature one vertical slot for the hot wire and a second, wider vertical slot for the: Question 1 Select one: a. live wire b. circuit wire c. ground wire d. neutral wire

Neutral wire

A unit of electric resistance is called a(n): Question 7 Select one: a. volt b. ohm c. watt d. insulator

Ohm

What are the initials used to help you remember fire extinguisher use? Question 11 Select one: a. APSS b. PASS c. SSPA d. SAPS

PASS

Jessica, a salon/spa owner wants her estheticians to each be able to run their electrical equipment independently or have several loads running at one time. Which type of wiring should be installed in her salon/spa? Question 14 Select one: a. open b. series c. parallel d. polarized

Parallel

The negative poles and positive poles at the end of a circuit are known as: Question 25 Select one: a. fuse b. polarity c. inverter d. waveform

Polarity

What sides of the poles is Caitlyn holding if two magnets are attracted to each other? Question 32 Select one: a. positive and negative b. negative and negative c. positive and positive d. neutral and neutral

Positive and negative

All of the following statements are true about 240-volt current EXCEPT: Question 45 Select one: a. higher cost to install b. powers large motors c. powers small appliances d. requires much thicker cord

Powers, small appliances

A volt is a unit of electric: Question 3 Select one: a. strength b. pressure c. frequency d. resistance

Pressure

How should cords be disconnected safely from an outlet? Question 20 Select one: a. pull on plug b. pull on cord c. pull on prong d. pull on outlet

Pull on plug

Which of the following actions should NOT be taken if a fire results from an overload of an electric circuit? Question 9 Select one: a. put water on it b. turn off the circuit c. use a fire extinguisher d. smother it with a rug or heavy towel

Put water on it

Which of the following changes alternating current to direct current? Question 30 Select one: a. ohm b. rectifier c. insulator d. conductor

Rectifier

What device is used to adjust the flow of electrical current? Question 29 Select one: a. inverter b. rheostat c. rectifier d. convertor

Rheostat

All of the following terms are types of waveforms EXCEPT: Question 4 Select one: a. round b. triangular c. saw-toothed d. rectangular

Round

Dropping an electrical appliance into water, making it a foreign conductor, causes a(n): Question 28 Select one: a. overload b. open circuit c. short circuit d. closed circuit

Short circuit

What can occur anytime a foreign conductor comes in contact with a wire carrying current to an appliance? Question 5 Select one: a. blackout b. open circuit c. short circuit d. closed circuit

Short circuit

An amp is a unit of electric: Question 8 Select one: a. strength b. pressure c. frequency d. resistance

Strength

An Underwriters Laboratory (UL) designation indicates: Question 44 Select one: a. it is free from all mechanical defects b. the manufacturer's warranty is doubled c. it operates with less power than specified on the label d. the appliance has been certified to operate safely under the conditions specified

The appliance has been certified to operate safely under the conditions specified

Fires in electrical circuits can occur if: Question 27 Select one: a. the circuit is open b. there is a closed path, called a circuit c. the circuit breaker is manually turned to the off position d. too many appliances use the same wall socket and overload the circuit

Too many appliances, use the same wall socket and overload the circuit

Walking across a carpet in a cold, dry environment, then touching a metal object and getting a small shock is known as static electricity. Question 15 Select one: True False

True

Which of the following materials is considered a conductor? Question 37 Select one: a. silk b. rubber c. distilled water d. water-containing ions

Water containing ions

A measure of how much electrical energy is being used is known as a: Question 31 Select one: a. volt b. watt c. load d. conductor

Watt