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Electrical Components
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Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
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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. Normally Closed.
National Electrical Manufacturers Association
Electrokinetics
Voltage Drop
N.C.
2. A circuit which may have one or many resistors and/or other various devices connected in a series so that the current has only one path to follow.
Weber
Series Circuit
Ohmeter
Electromagnetic field
3. A sensor or switch with the ability to detect it's relationship to a metal target without making physical contact.
RTD
Time Delay Before Availability
Canadian Standards Administration
Proximity Sensor
4. NEC: A set of regulations pertaining to electrical installation and design in the interest of the protection of life and property. The NEC is adopted by NFPA and approved by ANSI. It is the preferred standard of guidelines used by most electrical reg
Thyristor
Canadian Standards Administration
National Electrical Code
Grounding Conductor
5. The element inside a vacuum tube - incandescent lamp or other similar device.
VOM
Magnetic Blow-out Switch
Canadian Standards Administration
Filament
6. Very High Frequency.
Capacitor
Quark
Lag
VHF
7. An ionized gas containing about equal numbers of positive and negative charges - which is a good conductor of electricity - and is affected by a magnetic field.
Plasma
N.O.
Quasiparticle
Potentiometer
8. Non-conducting material used to isolate and/or insulate energized electrical components.
Filament
Y
Grounding Conductor
Dilectric
9. To close an electrical circuit. To establish an electrical circuit through the closing of a contact - switch or other related device.
Conduit
Electroduct
Make
Dilectric
10. A hypothetical nuclear of a quark plus an antiproton.
Quap
Intrinsically safe
Conductance
Isothermal
11. The method by which two devices or systems are connected and interact with each other.
CMV
Resistance
Interface
Ground
12. European environmental ratings. Similar to NEMA ratings in the USA. IP;*site has NEMA comparisons ~LINK~
Electrode
N.O.
Quality Control
Ingress Protection Ratings
13. The measure of the ability of a material or substance to carry electrical current.
X ray
Conductance
OR Logic
Process Meter
14. The unit of power. One watt equals one joule per second - 1/746th horsepower.
Mean Temperature
Electrolysis
Watt-hour
Watt
15. An arrangement of any of various conductors through which electric current can flow from a supply current.
Zero Adjustment
OR Logic
Leakage current
Electric circuit
16. FM; ~LINK~
Rheostat
Gain
Factory Mutual
Latching logic
17. The pronounced curvature in reverse voltage current that is characteristic of a diode.
Lag
Kilovolt amperes
Current
Zener Effect
18. A panel meter with zero and span adjustments - commonly scaled for signals such as 1-5 volts - 4-20mA - etc.
Frequency
Maximum Operating Temperature
Process Meter
Cycle
19. A form of energy produced by the flow of particles of matter and consists of commonly attractive positively (protons [+]) and negatively (electrons [-]) charged atomic particles. A stream of electrons - or an electric current.
Electricity
Electrochemistry
Kilovolt amperes
Electromagnet
20. A switch in a controller that manually resets after exceeding the controllers limit.
Manual Reset Switch
Quark
Hazardous Location
Kilowatt Hour
21. One thousandth of an inch.
XFMR
Mil
Transient Protection
Actuator
22. An electrical circuit that increases the power - voltage or current of an applied signal.
Quartziodine Lamp
Amplifier
Y
Potentiometer
23. The behavior of charged particles and the steady motion of charge in magnetic and electric fields.
Actuator
Electrokinetics
RFI
Maximum Power Rating
24. The average temperature of a process.
Break
Mean Temperature
Current
OR Logic
25. Output power divided by input power - (work performed in ratio to energy used to produce it).
Leakage current
Microvolt
Intrinsically safe
Efficiency
26. A solid-state switching device used in switching AC wave forms.
Triac
Maximum Load Current
Efficiency
Frequency
27. An electromagnetic radiation produced when the inner satellite electrons of heavy atoms have been excited by collision with a stream of fast electrons return to their ground state - giving up the energy previously imparted to them.
Electric circuit
Power Supply
X ray
Electrochemistry
28. A highly accurate bridge configuration that is used to measure three-wire RTD thermometers.
Mueller Bridge
Maximum Power Rating
Charge
Institute of Electrical and Electronics Engineers
29. The form of radiation used to make non-contact temperature measurements. In the electromagnetic spectrum it is the area beyond red light from 760 nanometers to 1000 microns.
Infrared
Direct Current
National Fire Protection Association
Interface
30. A unit of electric charge. The amount of charge conveyed in one second by one ampere.
Alternating Current
Electrode
Direct Current
Coulomb
31. A material used to conduct electricity or heat.
PID
Thermoelectricity
Thermocouple
Conductor
32. Symbol used to denote transmitter.
Pulse
Magnetic Flux
XMTR
CMV
33. Radio Frequency Interference.
Forward Voltage
RFI
Electricity
Millimeter
34. That part of a circuit which is physically interconnected.
Supply Voltage
Potentiometer
Hard Wired
Conductor
35. A connected path to earth or to a conductive body that has a reference potential to earth.
Environmental Protection Agency
Grounded
Microvolt
Magnetic Blow-out Switch
36. A region of space that surrounds a moving electrical charge or a magnetic pole - in which the electrical charge or magnetic pole experiences a force that is above the electrostatic ones associated with particles at rest.
International Organization for Standardization
Magnetic Field
Field-Effect Transistor (FET)
Circuit
37. The part of a circuit that supplies power to the entire circuit or part of the circuit. Usually a separate unit that supplies power to a specific part of the circuit in a system.
Power Supply
Underwriters Laboratories
Open Circuit
Cathode
38. Ultra High Frequency
SCR
UHF
Maximum Load Current
Latching logic
39. A variable resistor.
Series Circuit
Rheostat
Power Supply
XMTR
40. A three terminal semiconductor device. In a 'FET' the current is from source to drain because a conducting channel is formed by a voltage field between the gate and the source.
Maximum Operating Temperature
Field-Effect Transistor (FET)
Direct Current
On/Off Controller
41. Symbol used for wye configuration for three phase electrical connections.
System International
Momentary switch
Proximity Switch
Y
42. IEC;
RTD
Electricity
International Electrotechnical Commission
Q-value
43. A form of silicone dioxide. Commonly used in the making of radio transmitters and heat resistant products.
VHF
Current Proportioning
Quartz
Millimeter
44. A controller whose action is either fully on or off.
Impedance
Circuit
Environmental Protection Agency
On/Off Controller
45. A sudden and unwanted increase or decrease of supply voltage or current.
National Electrical Code
Supply Current
Anode
Transient
46. The amount of time it takes for a device to react to an input signal.
Response Time
Magnetic Blow-out Switch
Factory Mutual
Manual Reset Switch
47. An electrical resistor composed of semiconductor material - whose resistance is a known rapidly varying function of temperature.
Zener Effect
Thermistor
Y
Zener Diode
48. The rate at which electricity flows - measured in amperes - 1 ampere = 1 coulomb per second.
Ohm
Current
Kilowatt
Isothermal
49. The opposition to electrical flow.
Volt
Impedance
Electromagnet
Velocity
50. ISA;
Instrument Society of America
Leakage current
Load
Voltage Drop
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