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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. Electric current that is constant - even - flowing and travels in one direction is:
cathode
direct current
Tesla current
Ultraviolet (UV) rays
2. Is a unit that measures the resistance of an electric current
ohm
polarity
35 percent
safety goggles
3. Is a measurement of how much electric energy is being used in one second
iontophoresis
conductors
watt
galvanic current
4. 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:
electrode
Cataphoresis
infrared rays
safety goggles
5. The device that prevents excessive current from passing through a circuit is a (n)
safety goggles
grounding
energy
fuse
6. Forces acidic substances into deeper tissue using galvanic current from the positive toward the negative pole
Cataphoresis
direct current
watt
anode
7. Tesla high- frequency current It is commonly called
Tesla current
violet ray
steamer or vaporizer
ohm
8. The unit that measures the amount of electric current is a(n)
30 to 36 inches
anode
galvanic current
ampere
9. Amp
measures strength of electric current
Cataphoresis
complete circuit
circuit breaker
10. Visible light - the part of the electromagnetic radiation spectrum that we can see - makes up what percentage of natural sunlight ?
35 percent
grounding
conductors
ohm
11. The distance between two successive peaks is called the
wavelength
Cataphoresis
ohm
nonconductor
12. The process of forcing water- soluble products into the skin with the use of electric current is called :
Most commonly used modality is
energy
steamer or vaporizer
iontophoresis
13. The unit that measures the pressure or force that pushes the flow of electrons through a conductor is a (n)
Fuse and circuit breaker
ampere
electric current
volt
14. The long wavelenghts that penetrate the deepest and produce the most heat are:
polarity
circuit breaker
cathode
infrared rays
15. The device that changes direct current to alternating current is a(n)
converter
safety goggles
anaphoresis
wavelength
16. Is process used to soften and emulsify grease deposits (oil) and blackheads in the hair follicles.
Desincrustation
Ultraviolet (UV) rays
Fuse and circuit breaker
anode
17. The positive electrode of an electrotherapy device is called a (n):
anode
Fuse and circuit breaker
cathode
AC
18. Galvanic current
wavelength
milliamperes
Most commonly used modality is
Cataphoresis
19. The unit that measures how much electric energy is being used in one second is a (n)
complete circuit
watt
Tesla current
iontophoresis
20. Meaning Alternating Current
steamer or vaporizer
milliamperes
AC
Tesla high- frequency current
21. Uv rays are applied with a lamp at a distance of
anode
30 to 36 inches
Fuse and circuit breaker
True
22. The path of electricity from the generating source through conductors and back to the original source is called a(n)
Most commonly used modality is
energy
complete circuit
nonconductor
23. Electric wires are usually covered with a rubber substance that is used as an insulator or:
nonconductor
wavelength
violet ray
True
24. Is a thermal or heat - producing current with a high rate of oscillation or vibration
True
Tesla current
Fuse and circuit breaker
Tesla high- frequency current
25. A thermal or heat- producing current with a high rate of oscillation that is used for scalp and facial treatments is :
True
complete circuit
violet ray
Tesla current
26. Prevents current from overload or excessive overload of circuit
nonconductor
Fuse and circuit breaker
galvanic current
violet ray
27. A process that forces liquids into the tissuse from the negative toward the positive pole is called:
anaphoresis
Tesla current
polarity
Most commonly used modality is
28. An applicator that is used for directing the electric current from the machine to the clients skin is called a (n)
wavelength
anaphoresis
fuse
electrode
29. A switch that automatically interrupts or shuts off an electric current at the first indication of an overload is a (n)
Desincrustation
watt
circuit breaker
iontophoresis
30. The current that is used for facial and scalp treatments is measured in :
watt
milliamperes
converter
violet ray
31. An important way of promoting electrical safety is the principle of:
watt
violet ray
volt
grounding
32. Metals used in electric wiring and motors are materials that are considered good electricity:
ampere
conductors
nonconductor
grounding
33. The negative electrode of an electrotherapy device is called a (n)
direct current
Fuse and circuit breaker
cathode
nonconductor
34. Electricity is described as a form of:
energy
Tesla high- frequency current
circuit breaker
Desincrustation
35. Produces moist - uniform heat that can be appiled to the head or face
grounding
30 to 36 inches
steamer or vaporizer
infrared rays
36. Ultraviolet (UV) rays are also referred to as
Most commonly used modality is
electric current
watt
cold rays or actinic rays
37. The flow of electricity along a conductor is called a(n)
electric current
Most commonly used modality is
Ultraviolet (UV) rays
watt
38. A rapid and interrupted current that flows in one direction then in the opposite direction is :
nonconductor
ampere
alternating current
Fuse and circuit breaker
39. Indicates the negative or positive pole of an electric current
wavelength
AC
polarity
safety goggles
40. Makes up 5% of natural sunlight
Ultraviolet (UV) rays
infrared rays
wavelength
ampere
41. 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
electrode
True
Tesla high- frequency current
42. The most commonly used modality that is a constant and direct current is:
galvanic current
milliamperes
Tesla high- frequency current
wavelength
Can you answer 50 questions in 15 minutes?
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