Ch. 7 Electricity

Multiple Choice

Which of the following is an example of a conductor?

• tap water

• rubber

• glass

• cement

Multiple Choice

Which of the following is TRUE of alternating current?

• It is produced by chemical means.

• It travel is only one direction.

• It is most often found in batteries.

• It is a rapid, interrupted current.

Multiple Choice

What does a watt measure?

• how much electric energy is being used in one second

• the pressure of force that pushes electric current through a conductor

• the strength of an electric current

• the resistance of an electric current

Multiple Choice

Which of the following is an example of an electrical safety device that you may encounter when working in a salon, spa, or barbershop?

• an ampere

• a circuit breaker

• an alternating current

• a conductor

Multiple Choice

Why is grounding important?

• Because it protects against electrical shock.

• Because it prevents downed wires in storms.

• Because it turns conductors into nonconductors.

• Because it turns direct current into alternating current.

Multiple Choice

The third circular electrical connection on a three-prong plug is called a _______.

• ground fault interrupter

• grounding pin

• circuit breaker

• fuse

Multiple Choice

Which of the following is Tesla high-frequency current used for?

• slowing blood circulation

• decreasing elimination and absorption

• decreasing skin metabolism

• improving germicidal action