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