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Test your basic knowledge |
Electrical Components
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 50 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. A circuit conductor that is grounded to become part of the electric circuit by design and intent.
Chatter
Field cell
Grounded Conductor
Watt-hour
2. ISO;
International Organization for Standardization
PSID
Ohmeter
Electric circuit
3. The range of voltage needed to maintain operation of a control or device.
Electron
Supply Voltage
Underwriters Laboratories
On/Off Controller
4. See; 'Proximity Sensor'.
XFMR
Watt-hour
Proximity Switch
RTD
5. A full path of electrical current from a voltage source that passes completely from one terminal of the voltage source to another.
Environmental Protection Agency
Electrochemistry
System International
Circuit
6. Also known as Hertz - it is the number of complete cycles of periodic waveform that occur during a time period of one second.
Zero Adjustment
Frequency
Supply Voltage
International Electrotechnical Commission
7. The standard that is used to make comparison measurements or calibrations.
Working Standard
Load
Weber
Electrolyte
8. An electrical circuit that increases the power - voltage or current of an applied signal.
Farad
Amplifier
Electron
Field-Effect Transistor (FET)
9. A solid-state switching device used in switching AC wave forms.
Kilovolt
Triac
Ohm
National Fire Protection Association
10. Symbol used for wye configuration for three phase electrical connections.
Transient Protection
Instrument Society of America
Y
Mueller Bridge
11. Protective circuitry to guard against spikes that might be induced on the supply line.
Phase Proportioning
Microvolt
Transient Protection
Electromagnetic field
12. Symbol for Mega - one million.
Quantum Electronics
M
Voltmeter
Supply Voltage
13. Radio Frequency Interference.
RFI
Conduit
Cathode
Filament
14. A unit of energy in solid-state physics with mass and momentum but that does not exist as a free particle.
Quantum Electronics
Root Mean Square
Quasiparticle
Pulse
15. Kw; One thousand watts.
Light Emitting Diode
Celsius
Microvolt
Kilowatt
16. The speed or time rate of change of displacement.
Velocity
Actuator
SCR
Ground
17. A high-intensity incandescent lamp with a quartz bulb containing an inert gas of iodine or bromine vapor.
PSIA
Quartziodine Lamp
Intrinsically safe
Quality Control
18. A tube - pipe or trough that carries and protects electric wiring.
Output
Conduit
Amp
National Electrical Manufacturers Association
19. The amount of energy released in a nuclear reaction. It is expressed in atomic mass units - or in million electron volts (MEV).
Magnetic Blow-out Switch
Microvolt
Q-value
On/Off Controller
20. A highly accurate bridge configuration that is used to measure three-wire RTD thermometers.
Mueller Bridge
Interface
Environmental Protection Agency
Microvolt
21. The opposition to electrical flow.
Current
National Electrical Code
Actuator
Impedance
22. A form of silicone dioxide. Commonly used in the making of radio transmitters and heat resistant products.
Quartz
Threshold Response
Conduit
Farad
23. One of the very small discrete packets into which many forms of energy are subdivided.
Ohmeter
PSIA
Quantum
Frequency
24. (DC); Electrical current that flows consistently in one direction only.
Vector
Magnetic Field
Instrument Society of America
Direct Current
25. The resistance to electrical current. Resistance is measured in ohms.
Y
Plasma
Light Emitting Diode
Resistance
26. The maximum temperature at which a device can be safely operated.
AWG
Maximum Operating Temperature
Transient
Fluorescent
27. A process that is kept at a constant temperature.
N.O.
N.C.
Chatter
Isothermal
28. One millionth of a volt.
Microvolt
Dilectric
Bridge Rectifier
Mil
29. Kwh; One thousand watt-hours.
Kilowatt Hour
Polarity
Maximum Power Rating
VHF
30. MLS; A photoelectric control that operates on pulsed infrared radiation at a specific frequency - and responds only to that frequency of pulse. MLS is used frequently in areas where ambient light may cause problems with other types of sensors.
Modulated Light Source Control
Electric circuit
CMV
Supply Current
31. An electrical resistor composed of semiconductor material - whose resistance is a known rapidly varying function of temperature.
Anode
Thermistor
Electricity
VOM
32. Electrical energy produced by the action of heat.
Institute of Electrical and Electronics Engineers
Thermoelectricity
Direct Current
Electroduct
33. 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.
Current Proportioning
Output
Hard Wired
Mean Temperature
34. A sensor or switch with the ability to detect it's relationship to a metal target without making physical contact.
VF
Operating Temperature
Rheostat
Proximity Sensor
35. '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.
Interface
Electrokinetics
BTU
Electromagnet
36. Current Consumption. The amount of amps or milliamps needed to maintain operation of a control or device.
International Organization for Standardization
Supply Current
Working Standard
On/Off Controller
37. Magnetically - opposite poles - north and south. In electricity - oppositely charged poles - positive and negative.
Quap
Polarity
Microamp
XFMR
38. kV; One thousand volts.
Momentary switch
Kilovolt
Quartz
Mil
39. FM; ~LINK~
Transistor
Factory Mutual
Interface
Manual Reset Switch
40. One millionth of an amp.
Operating Temperature
Charge
Threshold Response
Microamp
41. Voltage; The unit of electromotive force (EMF) that causes current to flow. One volt causes a current of one amp through a resistance of one ohm.
Celsius
Conduit
Electrode
Volt
42. A device that converts AC voltage to pulsating DC voltage.
OR Logic
Quality Control
Rectifier
Grounding Conductor
43. A silicone semiconductor that maintains a fixed voltage in a circuit.
Zener Diode
Thyristor
Grounded
Mueller Bridge
44. A fundamental negatively (-) charged atomic particle that rotates around a positively (+) charged nucleus of the atom.
Electron
Coulomb
XFMR
Leakage current
45. A solid-state switching device for semiconductors to convert AC current in one of two directions controlled by an electrode.
Make
Absolute Zero
Thyristor
Grounded
46. A switching device used in switching high DC loads. It contains a small permanent magnet which deflects arc in order to quench it.
Magnetic Blow-out Switch
Thermocouple
Electromagnet
Amplifier
47. 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
Hard Wired
Rectifier
Intrinsically safe
PSID
48. Very High Frequency.
CMV
Open Circuit
VHF
Transient
49. NEMA;
Microamp
Electrolyte
Electric circuit
National Electrical Manufacturers Association
50. The method by which two devices or systems are connected and interact with each other.
Interface
Impedance
X ray
Quap