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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. The path of electricity from the generating source through conductors and back to the original source is called a(n)
complete circuit
direct current
electrode
converter
2. Is a thermal or heat - producing current with a high rate of oscillation or vibration
electric current
Tesla high- frequency current
watt
direct current
3. Ultraviolet (UV) rays are also referred to as
anaphoresis
cold rays or actinic rays
iontophoresis
Most commonly used modality is
4. A rapid and interrupted current that flows in one direction then in the opposite direction is :
converter
35 percent
electrode
alternating current
5. Is a measurement of how much electric energy is being used in one second
watt
Fuse and circuit breaker
polarity
electric current
6. Is process used to soften and emulsify grease deposits (oil) and blackheads in the hair follicles.
wavelength
ohm
Desincrustation
nonconductor
7. Visible light - the part of the electromagnetic radiation spectrum that we can see - makes up what percentage of natural sunlight ?
galvanic current
alternating current
35 percent
electrode
8. The process of forcing water- soluble products into the skin with the use of electric current is called :
watt
iontophoresis
wavelength
volt
9. The positive electrode of an electrotherapy device is called a (n):
anode
infrared rays
galvanic current
circuit breaker
10. A thermal or heat- producing current with a high rate of oscillation that is used for scalp and facial treatments is :
Tesla current
steamer or vaporizer
iontophoresis
cathode
11. The unit that measures the pressure or force that pushes the flow of electrons through a conductor is a (n)
complete circuit
ampere
volt
wavelength
12. The long wavelenghts that penetrate the deepest and produce the most heat are:
infrared rays
converter
ampere
cathode
13. The most commonly used modality that is a constant and direct current is:
anode
galvanic current
alternating current
watt
14. Makes up 5% of natural sunlight
Ultraviolet (UV) rays
electrode
alternating current
complete circuit
15. Produces moist - uniform heat that can be appiled to the head or face
steamer or vaporizer
electrode
Cataphoresis
milliamperes
16. An applicator that is used for directing the electric current from the machine to the clients skin is called a (n)
watt
polarity
ohm
electrode
17. Galvanic current
Desincrustation
anode
complete circuit
Most commonly used modality is
18. Is a unit that measures the resistance of an electric current
safety goggles
violet ray
watt
ohm
19. Forces acidic substances into deeper tissue using galvanic current from the positive toward the negative pole
circuit breaker
Cataphoresis
Ultraviolet (UV) rays
measures strength of electric current
20. The distance between two successive peaks is called the
electric current
anaphoresis
Fuse and circuit breaker
wavelength
21. Amp
Desincrustation
measures strength of electric current
alternating current
Ultraviolet (UV) rays
22. The device that prevents excessive current from passing through a circuit is a (n)
Ultraviolet (UV) rays
fuse
circuit breaker
Tesla high- frequency current
23. Electric current that is constant - even - flowing and travels in one direction is:
True
ohm
direct current
grounding
24. Uv rays are applied with a lamp at a distance of
30 to 36 inches
conductors
milliamperes
violet ray
25. Electricity is described as a form of:
Tesla high- frequency current
conductors
ampere
energy
26. 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
30 to 36 inches
grounding
infrared rays
27. Meaning Alternating Current
direct current
Tesla current
anode
AC
28. 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
watt
True
energy
ohm
29. Indicates the negative or positive pole of an electric current
safety goggles
polarity
infrared rays
volt
30. Prevents current from overload or excessive overload of circuit
iontophoresis
watt
Fuse and circuit breaker
Tesla current
31. The unit that measures how much electric energy is being used in one second is a (n)
True
Cataphoresis
watt
35 percent
32. Tesla high- frequency current It is commonly called
wavelength
violet ray
volt
anaphoresis
33. A switch that automatically interrupts or shuts off an electric current at the first indication of an overload is a (n)
fuse
circuit breaker
Tesla high- frequency current
steamer or vaporizer
34. The unit that measures the amount of electric current is a(n)
Cataphoresis
galvanic current
ampere
cold rays or actinic rays
35. The flow of electricity along a conductor is called a(n)
steamer or vaporizer
electric current
watt
complete circuit
36. The negative electrode of an electrotherapy device is called a (n)
True
cathode
circuit breaker
fuse
37. The device that changes direct current to alternating current is a(n)
True
circuit breaker
converter
infrared rays
38. Metals used in electric wiring and motors are materials that are considered good electricity:
watt
galvanic current
direct current
conductors
39. Electric wires are usually covered with a rubber substance that is used as an insulator or:
Ultraviolet (UV) rays
cathode
polarity
nonconductor
40. An important way of promoting electrical safety is the principle of:
grounding
milliamperes
ampere
converter
41. A process that forces liquids into the tissuse from the negative toward the positive pole is called:
True
anaphoresis
measures strength of electric current
30 to 36 inches
42. The current that is used for facial and scalp treatments is measured in :
direct current
milliamperes
electric current
Desincrustation