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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 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
Environmental Protection Agency
XFMR
Manual Reset Switch
2. A device that transfers power or energy from one system to another - such as taking a physical quality and changing it to an electrical signal.
Quasiparticle
Voltmeter
CMV
Transducer
3. The range of voltage needed to maintain operation of a control or device.
Cycle
Threshold Response
Supply Voltage
Phase Proportioning
4. Applying molecular physics to electronics.
Quantum Electronics
Microvolt
On/Off Controller
Ground
5. Kwh; One thousand watt-hours.
Break
Kilowatt Hour
Forward Voltage
Hazardous Location
6. Symbol used to denote transmitter.
Electromagnetic field
XMTR
National Electrical Manufacturers Association
Quap
7. An area in which combustible or flammable mixtures are or could be present.
Series Circuit
Absolute Zero
Thyristor
Hazardous Location
8. LED; A solid state light source component that emits light or invisible infrared radiation.
Power Supply
Beta
Kilovolt
Light Emitting Diode
9. One millionth of an amp.
Magnetic Flux
Light Emitting Diode
VOM
Microamp
10. The increase of the power level - current or voltage of a signal. In an amplifier it is the ratio of the output to the input signal levels.
PSIG
Gain
Rheostat
UHF
11. A circuit conductor that is grounded to become part of the electric circuit by design and intent.
International Electrotechnical Commission
Grounded Conductor
Rectifier
Weber
12. A controller whose action is either fully on or off.
Electricity
Transistor
Electrolysis
On/Off Controller
13. Normally Open.
N.O.
Thermocouple
Hazardous Location
Filter
14. 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.
AWG
Power Dissipation
Factory Mutual
Volt
15. A meter used to measure electrical resistance in units of ohms.
Watt
PSIG
Ohmeter
Magnetic Blow-out Switch
16. An electrical circuit that is not 'made'. Contacts - switches or similar devices are open and preventing the floe of current.
Dilectric
Weber
Conduction
Open Circuit
17. Magnetically - opposite poles - north and south. In electricity - oppositely charged poles - positive and negative.
Vector
Polarity
VOM
Electrolyte
18. A variable resistor.
UHF
Rheostat
Electric circuit
Mueller Bridge
19. The amount of heat needed to convert one pound of water to one pound of steam. Latent heat is expressed in BTU per pound.
Ground
CMV
Factory Mutual
Latent heat
20. MA; One thousandth of an amp.
Mil
Leakage current
Working Standard
Milliamp
21. The standard that is used to make comparison measurements or calibrations.
M
RTD
Working Standard
Thermoelectricity
22. The amount of time it takes for a device to react to an input signal.
Instrument Society of America
Triac
Response Time
Q-value
23. A solid-state switching device used in switching AC wave forms.
UHF
Zener Diode
Kilovolt
Triac
24. A meter used to measure units of volts.
Voltmeter
Momentary switch
Open Circuit
Magnetic Blow-out Switch
25. Also known as Hertz - it is the number of complete cycles of periodic waveform that occur during a time period of one second.
Frequency
Watt-hour
On/Off Controller
Millimeter
26. The basic of thermal energy. The work done by the force of one newton acting through a distance of one meter.
Supply Current
Thyristor
Joule
American National Standards Institute
27. Variable Frequency.
Pulse
VF
Current
PID
28. An anode (+) or cathode (-) conductor on a device through which an electric current passes.
Rheostat
Mueller Bridge
Electrode
Y
29. kV; One thousand volts.
Instrument Society of America
Transducer
Kilovolt
Vacuum
30. The time it takes for a controller to complete one on/off cycle.
Current Proportioning
Proximity Sensor
Quartziodine Lamp
Cycle Time
31. One millionth of a volt.
On/Off Controller
Forward resistance
Micron
Microvolt
32. A three mode control consisting of time Proportioning - Integral and Derivative rate action.
PID
Filter
OR Logic
Amplifier
33. Symbol for Mega - one million.
Rheostat
Underwriters Laboratories
M
Pulse
34. An interconnected arrangement of parts for carrying high-voltage electricity.
VF
Electroduct
Manual Reset Switch
Intrinsically safe
35. The method by which two devices or systems are connected and interact with each other.
Interface
Underwriters Laboratories
Zener Diode
VF
36. A hypothetical nuclear of a quark plus an antiproton.
Quap
Output
AWG
Frequency
37. -459.67
Electrode
Absolute Zero
Celsius
Latent heat
38. The voltage that is applied across a semiconductor junction to permit forward current through that junction and the device. Forward voltage is also known as 'bias.'
Kilovolt
Gain
Forward Voltage
Maximum Operating Temperature
39. The mechanism of a switch which operates the contacts.
Mueller Bridge
Actuator
Quartziodine Lamp
Environmental Protection Agency
40. Pressure that is less than atmospheric pressure.
Electrodynamic
Vacuum
Maximum Load Current
Ripple
41. The range of temperature over which a device may be safely used. The temperature range which the device has been designed to operate.
M
Thermistor
Transistor
Operating Temperature
42. Two dissimilar metals connected at a point - that produce an electrical current whose magnitude is dependent upon the temperature at the junction point.
Forward resistance
Operating Temperature
Thermocouple
X ray
43. A highly accurate bridge configuration that is used to measure three-wire RTD thermometers.
Maximum Power Rating
Current
Kilowatt Hour
Mueller Bridge
44. The conductor that is used by intent to connect the grounded circuit of an electrical wiring system or equipment to a grounding electrode with reference to earth.
PSID
Grounding Conductor
XFMR
Cycle
45. Protective circuitry to guard against spikes that might be induced on the supply line.
Transient Protection
Environmental Protection Agency
Polarity
Ingress Protection Ratings
46. See; 'Proximity Sensor'.
Leakage current
Mil
Proximity Switch
Load
47. UL; ~LINK~
Frequency
Quap
Underwriters Laboratories
Electrokinetics
48. The pronounced curvature in reverse voltage current that is characteristic of a diode.
Mueller Bridge
Isothermal
Zener Effect
Thermoelectricity
49. The speed or time rate of change of displacement.
Power Supply
Micron
Mean Temperature
Velocity
50. 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.
Kilowatt Hour
Field cell
Manual Reset Switch
Power Supply