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Test your basic knowledge |
Basic Of Electricity 3
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 42 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Is a measurement of how much electric energy is being used in one second
energy
cathode
watt
Tesla high- frequency current
2. Tesla high frequency current should not be used on clients who pregnant - suffer from epilepsy or asthma - high blood pressure - sinus blockage - pacemaker or metal implants
True
energy
direct current
Desincrustation
3. Is a thermal or heat - producing current with a high rate of oscillation or vibration
galvanic current
infrared rays
steamer or vaporizer
Tesla high- frequency current
4. The negative electrode of an electrotherapy device is called a (n)
cathode
circuit breaker
direct current
cold rays or actinic rays
5. The positive electrode of an electrotherapy device is called a (n):
Cataphoresis
Ultraviolet (UV) rays
infrared rays
anode
6. Prevents current from overload or excessive overload of circuit
electric current
Fuse and circuit breaker
cathode
wavelength
7. The distance between two successive peaks is called the
wavelength
Tesla high- frequency current
measures strength of electric current
fuse
8. Is process used to soften and emulsify grease deposits (oil) and blackheads in the hair follicles.
direct current
alternating current
Desincrustation
converter
9. Electricity is described as a form of:
electric current
anaphoresis
energy
steamer or vaporizer
10. Galvanic current
converter
Desincrustation
Most commonly used modality is
watt
11. A switch that automatically interrupts or shuts off an electric current at the first indication of an overload is a (n)
watt
circuit breaker
direct current
anaphoresis
12. A thermal or heat- producing current with a high rate of oscillation that is used for scalp and facial treatments is :
Tesla current
electrode
volt
watt
13. The path of electricity from the generating source through conductors and back to the original source is called a(n)
complete circuit
violet ray
steamer or vaporizer
anode
14. Makes up 5% of natural sunlight
iontophoresis
galvanic current
Ultraviolet (UV) rays
watt
15. Ultraviolet (UV) rays are also referred to as
steamer or vaporizer
watt
cold rays or actinic rays
Tesla high- frequency current
16. An important way of promoting electrical safety is the principle of:
electric current
safety goggles
fuse
grounding
17. The device that changes direct current to alternating current is a(n)
milliamperes
converter
measures strength of electric current
grounding
18. Produces moist - uniform heat that can be appiled to the head or face
grounding
Desincrustation
infrared rays
steamer or vaporizer
19. An applicator that is used for directing the electric current from the machine to the clients skin is called a (n)
Tesla high- frequency current
polarity
cold rays or actinic rays
electrode
20. The process of forcing water- soluble products into the skin with the use of electric current is called :
True
watt
iontophoresis
measures strength of electric current
21. The current that is used for facial and scalp treatments is measured in :
ampere
circuit breaker
milliamperes
Desincrustation
22. A rapid and interrupted current that flows in one direction then in the opposite direction is :
alternating current
cold rays or actinic rays
polarity
iontophoresis
23. Amp
cold rays or actinic rays
circuit breaker
measures strength of electric current
Tesla high- frequency current
24. The long wavelenghts that penetrate the deepest and produce the most heat are:
ampere
infrared rays
grounding
anaphoresis
25. Forces acidic substances into deeper tissue using galvanic current from the positive toward the negative pole
Cataphoresis
Fuse and circuit breaker
Ultraviolet (UV) rays
Tesla current
26. Is a unit that measures the resistance of an electric current
circuit breaker
energy
Tesla high- frequency current
ohm
27. The flow of electricity along a conductor is called a(n)
violet ray
electric current
Cataphoresis
Fuse and circuit breaker
28. The unit that measures the pressure or force that pushes the flow of electrons through a conductor is a (n)
fuse
volt
electrode
conductors
29. The unit that measures how much electric energy is being used in one second is a (n)
safety goggles
energy
anaphoresis
watt
30. To avoid damage to the eyes of a client or practitioner when using light therapy treatments - the eyes should be protected with saturated cotton pads or:
safety goggles
infrared rays
cold rays or actinic rays
measures strength of electric current
31. The unit that measures the amount of electric current is a(n)
measures strength of electric current
alternating current
ampere
grounding
32. A process that forces liquids into the tissuse from the negative toward the positive pole is called:
anaphoresis
alternating current
milliamperes
Tesla current
33. Uv rays are applied with a lamp at a distance of
infrared rays
conductors
polarity
30 to 36 inches
34. Electric wires are usually covered with a rubber substance that is used as an insulator or:
converter
milliamperes
energy
nonconductor
35. Electric current that is constant - even - flowing and travels in one direction is:
Fuse and circuit breaker
volt
direct current
cold rays or actinic rays
36. Visible light - the part of the electromagnetic radiation spectrum that we can see - makes up what percentage of natural sunlight ?
nonconductor
Fuse and circuit breaker
35 percent
cold rays or actinic rays
37. The device that prevents excessive current from passing through a circuit is a (n)
fuse
nonconductor
conductors
electrode
38. Tesla high- frequency current It is commonly called
AC
iontophoresis
complete circuit
violet ray
39. The most commonly used modality that is a constant and direct current is:
galvanic current
grounding
violet ray
nonconductor
40. Indicates the negative or positive pole of an electric current
Fuse and circuit breaker
polarity
violet ray
anaphoresis
41. Meaning Alternating Current
AC
35 percent
iontophoresis
conductors
42. Metals used in electric wiring and motors are materials that are considered good electricity:
Most commonly used modality is
watt
conductors
measures strength of electric current