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