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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. 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
Relay
Thermoelectricity
National Electrical Code
Filter
2. One millionth of a volt.
Millimeter
VF
Microvolt
BTU
3. A hypothetical nuclear of a quark plus an antiproton.
Kilovolt amperes
Phase Proportioning
Ripple
Quap
4. Symbol used to denote transformer.
Current
XFMR
Watt
Supply Voltage
5. UL; ~LINK~
Underwriters Laboratories
Power Dissipation
Occupational Safety & Health Administration
Time Delay Before Availability
6. A form of control where the power supplied to a process is controlled by limiting the phase angle of the line voltage.
Manual Reset Switch
Milliamp
Quartz
Phase Proportioning
7. A device - instrument or component that will not produce any spark or thermal effects under any conditions that are normal or abnormal that will ignite a specified gas mixture. Electrical and thermal energy limits are at levels incapable of causing i
Ripple
Charge
Q-value
Intrinsically safe
8. A full path of electrical current from a voltage source that passes completely from one terminal of the voltage source to another.
Circuit
Threshold Response
Conduction
Joule
9. One millionth of an amp.
On/Off Controller
Microamp
OR Logic
Latching logic
10. The measured amount of electrical energy that represents the electrostatic forces between atomic particles. The nucleus of an atom has a positive charge (+) and the electrons have a negative charge(-).
Frequency
Charge
Zener Diode
OR Logic
11. 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.
Forward resistance
National Electrical Code
X ray
Root Mean Square
12. Symbol for Mega - one million.
M
Quap
Phase Proportioning
Microamp
13. Normally Closed.
Rectifier
Volt
N.C.
Vector
14. The unit of power. One watt equals one joule per second - 1/746th horsepower.
UHF
Watt
Potentiometer
National Fire Protection Association
15. 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
Electroduct
Response Time
Mil
16. The resistance to electrical current. Resistance is measured in ohms.
Resistance
Thermoelectricity
Transistor
System International
17. An electrical circuit that increases the power - voltage or current of an applied signal.
Grounding Conductor
Hard Wired
Field cell
Amplifier
18. A negative (-) electrode. The point of entry of electrons into a device from an external circuit. The negative electrode of a semiconductor diode.
Cathode
Institute of Electrical and Electronics Engineers
Y
Zener Effect
19. A material used to conduct electricity or heat.
Quasiparticle
Phase
Ampere
Conductor
20. An anode (+) or cathode (-) conductor on a device through which an electric current passes.
Infrared
Forward resistance
Electrode
Latching logic
21. The unit for capacitance. A capacitor that stored one coulomb of charge with one volt across it will have a value of one farad.
Maximum Load Current
Kilowatt
International Brotherhood of Electrical Workers
Farad
22. FM; ~LINK~
Potentiometer
Factory Mutual
Amp
Conduction
23. The mechanism of a switch which operates the contacts.
Actuator
CMV
National Electrical Code
BTU
24. ANSI;
American National Standards Institute
Volt
Conduit
Operating Temperature
25. Response to the change in the level of the input signal.
SCR
Quartziodine Lamp
Ohmeter
Threshold Response
26. The interaction of magnetism and electrical current.
Conductance
Electrodynamic
Filter
International Electrotechnical Commission
27. Protective circuitry to guard against spikes that might be induced on the supply line.
Transient Protection
Instrument Society of America
Zero Adjustment
Electricity
28. Resistance Temperature Detector.
Relay
Maximum Load Current
RTD
Ground
29. A highly accurate bridge configuration that is used to measure three-wire RTD thermometers.
Electrolyte
Electric circuit
Mueller Bridge
Manual Reset Switch
30. One thousandth of an inch.
Zener Diode
Ampere
Power Dissipation
Mil
31. Electric and magnetic force field that surrounds a moving electric charge.
International Electrotechnical Commission
Response Time
Farad
Electromagnetic field
32. Kw; One thousand watts.
Electricity
Kilowatt
National Fire Protection Association
CMV
33. A unit of energy in solid-state physics with mass and momentum but that does not exist as a free particle.
Electron
Ampere
Quasiparticle
Ground
34. Symbol used to denote transmitter.
Open Circuit
Y
Diode
XMTR
35. A switching device used in switching high DC loads. It contains a small permanent magnet which deflects arc in order to quench it.
Electricity
Magnetic Blow-out Switch
Process Meter
Grounded Conductor
36. Normally Open.
Lag
N.O.
Thermoelectricity
I
37. The rapid on/off cycling of a relay caused by improper signal or adjustment - faulty contacts - or other malfunction.
Chatter
Underwriters Laboratories
Conductor
Modulated Light Source Control
38. 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.
Absolute Zero
Ingress Protection Ratings
Transducer
Infrared
39. Commonly used in generators and motors - it is an electromagnet formed from a coil of insulated wire that is wound around a soft iron core.
RFI
Cathode
Field cell
Power Supply
40. Volt-ohm Meter.
Dilectric
Proximity Switch
VOM
Underwriters Laboratories
41. A switch with contacts that are made with actuating force and released when that force is removed.
Rectifier
Momentary switch
Canadian Standards Administration
Forward resistance
42. The output that is produced when one or more inputs are present.
UHF
Modulated Light Source Control
Underwriters Laboratories
OR Logic
43. A switch in a controller that manually resets after exceeding the controllers limit.
Magnetic Blow-out Switch
Manual Reset Switch
Kilowatt Hour
Grounded Conductor
44. Current Consumption. The amount of amps or milliamps needed to maintain operation of a control or device.
Supply Current
Polarity
RFI
UHF
45. A device used to store electrical energy in an electrostatic field until discharge.
Zero Adjustment
Capacitor
Actuator
Cycle
46. An interconnected arrangement of parts for carrying high-voltage electricity.
Bridge Rectifier
Power Supply
Filter
Electroduct
47. A three mode control consisting of time Proportioning - Integral and Derivative rate action.
PID
Root Mean Square
UHF
Kilovolt amperes
48. 'British Thermal Unit' - the amount of thermal energy required to raise one pound of water 1degree F. One BTU is equal to .293 watt hours. One kWh is equal to 3412 BTUs.
Maximum Operating Temperature
Direct Current
Power Dissipation
BTU
49. Pressure that is less than atmospheric pressure.
AWG
Vacuum
Hazardous Location
Instrument Society of America
50. Radio Frequency Interference.
Diode
Anode
RFI
Field-Effect Transistor (FET)
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