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Test your basic knowledge |
Electrical Components
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Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
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study here
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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. Current Consumption. The amount of amps or milliamps needed to maintain operation of a control or device.
Supply Current
Q-value
PSIA
Rheostat
2. The pronounced curvature in reverse voltage current that is characteristic of a diode.
Millivolt
Alternating Current
Conductor
Zener Effect
3. A switching device used in switching high DC loads. It contains a small permanent magnet which deflects arc in order to quench it.
Microamp
Zener Diode
Milliamp
Magnetic Blow-out Switch
4. 'American Wire Gauge' system used to determine wire size.
Power Dissipation
Supply Current
Watt-hour
AWG
5. In a temperature controller it is the output form that provides a current proportional to the amount of control that is required. Commonly it is the 4 to 20 milliamp current proportioning band that is used in the electronics industry.
Interface
Capacitor
Voltage Drop
Current Proportioning
6. A solid-state switching device for semiconductors to convert AC current in one of two directions controlled by an electrode.
Actuator
Modulated Light Source Control
Thyristor
Instrument Society of America
7. 'Common Mode Voltage.' The voltage which is tolerable between signal and ground.
CMV
Root Mean Square
Field cell
N.C.
8. The amount of power that is consumed and converted to heat.
Forward Voltage
Power Dissipation
Electroduct
Microamp
9. To close an electrical circuit. To establish an electrical circuit through the closing of a contact - switch or other related device.
Process Meter
Make
Thyristor
UHF
10. The unit by which electrical resistance is measured. One ohm is equal to the current of one ampere which will flow when a voltage of one volt is applied
Grounding Conductor
Voltage Drop
Ohm
Instrument Society of America
11. The standard that is used to make comparison measurements or calibrations.
Working Standard
Absolute Zero
CMV
Milliamp
12. A hypothetical nuclear of a quark plus an antiproton.
Quality Control
Quap
Celsius
Field cell
13. NEMA;
Electron
Ground
National Electrical Manufacturers Association
Root Mean Square
14. The amount of energy released in a nuclear reaction. It is expressed in atomic mass units - or in million electron volts (MEV).
Infrared
X ray
Ripple
Q-value
15. Non-conducting material used to isolate and/or insulate energized electrical components.
Charge
Dilectric
Underwriters Laboratories
On/Off Controller
16. A circuit element or components that allows signals of certain frequencies to pass and blocks signals of other frequencies.
Phase
Filter
Farad
International Electrotechnical Commission
17. European environmental ratings. Similar to NEMA ratings in the USA. IP;*site has NEMA comparisons ~LINK~
Ingress Protection Ratings
Electron
Current Proportioning
Lag
18. (AC); Electrical current that changes (or alternates) in magnitude and direction of the current at regular intervals.
Kilowatt Hour
Rheostat
Anode
Alternating Current
19. 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
Grounded Conductor
Proximity Sensor
Farad
20. A device used to store electrical energy in an electrostatic field until discharge.
Voltage Drop
Capacitor
Make
Impedance
21. OSHA;
Resistance
Vacuum
Electrodynamic
Occupational Safety & Health Administration
22. The time based relationship between a reference and a periodic function.
Phase
Electromagnetic field
Vector
Electromagnet
23. A variable resistor.
PID
Output
Coulomb
Rheostat
24. The energy delivered by a circuit or device. The electrical signal produced by the input to the transducer.
Output
Volt
Electricity
Actuator
25. LED; A solid state light source component that emits light or invisible infrared radiation.
Millimeter
Polarity
Light Emitting Diode
Electromagnetic field
26. A sensor or switch with the ability to detect it's relationship to a metal target without making physical contact.
Proximity Sensor
Field-Effect Transistor (FET)
Electricity
Absolute Zero
27. A unit of electrical current named after French physicist Andr
Beta
Ampere
Resistance
Capacitor
28. The adjustment of a display that results are zero on the display corresponding to a non-zero signal.
Micron
Efficiency
Zero Adjustment
Chatter
29. Kw; One thousand watts.
Kilowatt
Latching logic
Ingress Protection Ratings
Quasiparticle
30. ISO;
International Organization for Standardization
Maximum Load Current
Microvolt
National Electrical Code
31. Normally Open.
Transistor
N.O.
Working Standard
Electrokinetics
32. A form of control where the power supplied to a process is controlled by limiting the phase angle of the line voltage.
M
Vacuum
Phase Proportioning
Diode
33. 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.
Delta
Y
Pulse
Power Supply
34. The standard unit of magnetic flux.
Beta
Mean Temperature
Weber
Impedance
35. IBEW;
VF
International Brotherhood of Electrical Workers
Potentiometer
Capacitor
36. A unit of energy in solid-state physics with mass and momentum but that does not exist as a free particle.
Thermoelectricity
VOM
Ohm
Quasiparticle
37. Volt-ohm Meter.
Celsius
VOM
On/Off Controller
Field-Effect Transistor (FET)
38. The output that is produced when one or more inputs are present.
Triac
OR Logic
Kilovolt amperes
Make
39. In a three phase connection all three phases are connected in series thus forming a closed circuit.
Quap
Modulated Light Source Control
Make
Delta
40. The maximum watts that a device can safely handle.
Conductor
Ampere
Maximum Power Rating
Kilovolt
41. One millionth of a meter.
Series Circuit
Quality Control
Micron
Electric circuit
42. Resistance Temperature Detector.
Phase
Isothermal
RTD
Root Mean Square
43. Or Hertz; The measurement of the time period of one alternating electric current. In the United States this is commonly 60 cycles per second - or 60 Hertz.
Isothermal
I
Cycle
Vector
44. The amount of heat needed to convert one pound of water to one pound of steam. Latent heat is expressed in BTU per pound.
Hard Wired
Latent heat
Efficiency
Zener Diode
45. SI; The standard metric system of units.
Electric circuit
Quasiparticle
System International
Transient Protection
46. The difference in potential measured between two points caused by resistance or impedance.
Current Proportioning
Voltage Drop
Working Standard
Microamp
47. 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
National Electrical Code
PSIG
Flux
Power Dissipation
48. Silicone Controlled Rectifier.
X ray
Dilectric
SCR
Watt
49. Normally Closed.
Response Time
Celsius
Transient
N.C.
50. The rapid on/off cycling of a relay caused by improper signal or adjustment - faulty contacts - or other malfunction.
Millivolt
Chatter
Vacuum
Load
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