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