Electricity & Electrical Safety Flashcards
Which of the following is TRUE of alternating current?
It is a rapid, interrupted current
A condition that prohibits certain treatments is called a ______.
Contraindication
Why is grounding important?
Because it protects against electrical shock
While working on a customer, Cindy accidentally dropped her electrical device into a sink full of water. Which of the following should Cindy do?
Cindy should quickly unplug the device from the outlet.
Which of the following types of energy is most likely associated with nuclear power plants?
Gamma rays
Alyssa noticed that the electrical device she uses on the job has a three-pronged plug that was to be inserted into a three-pronged outlet in the wall. Since there were only two-pronged outlets in the room, however, Alyssa purchased an adapter to connect her three-pronged device into a two-pronged outlet. Why was this a bad idea?
Adapting a three-pronged plug to fit into a two-pronged outlet eliminates the intended grounding.
Which percentage of natural sunlight is visible, making up the visible spectrum of light?
35%
Which of the following is TRUE of infrared light?
It produces heat
Which of the following BEST differentiates between long wavelengths and short wavelengths?
Long wavelengths have low frequency; short wavelengths have high frequency
Why is copper used in electrical wiring and electrical motors?
Because it is a good conductor
Electricity use impacts ______ of the services that beauty professionals offer their clients.
ALL
Manny is excited to use his new series of hand-held appliances on his clients this week. His boss has told Manny to come in to work prepared to get used to the new equipment. All Manny knows is that the appliances are expensive and top of the line and that they run on alternating current. Manny has already cleaned off his station, made sure that he has ample space to work, properly disposed of his old appliances, and picked up plenty of long-lasting batteries for the new appliances. What mistakes, if any, has Manny made?
Manny should not have purchased any batteries
Jamil plugged an electrical device into the outlet on the wall and it immediately started to spark. Jamil, very startled, wasn’t sure what to do. What should Jamil do?
Unplug the device immediately and use another until that one can be repaired.
Jeremy is having a hard time getting his electrical equipment to work properly for his clients. The technician who came in to look at the situation advised Jeremy that the current is not able to flow through the wires efficiently. Why is this MOST likely the case?
The resistance (ohms) is stronger than the force (volts).
Julie relies on a constant, even flow of electricity that is produced by chemical means for the wireless tools she uses in her daily work. What is Julie looking for?
A direct current
