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