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