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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. Protective circuitry to guard against spikes that might be induced on the supply line.
Power Supply
Transient Protection
Amplifier
Absolute Zero
2. 'American Wire Gauge' system used to determine wire size.
X ray
Proximity Switch
AWG
Millimeter
3. A meter used to measure electrical resistance in units of ohms.
Ohmeter
Quality Control
Quasiparticle
Field-Effect Transistor (FET)
4. A controller whose action is either fully on or off.
Fluorescent
On/Off Controller
UHF
Kilowatt
5. Mm; One thousandth of a meter.
Diode
System International
Flux
Millimeter
6. The act of the opening of an electrical circuit.
VF
Break
Transistor
Cycle Time
7. The mechanism of a switch which operates the contacts.
Microvolt
Maximum Operating Temperature
Actuator
VHF
8. (ampere)The basic unit of current in an electrical circuit. One ampere is the rate of flow of electric current when one coulomb of charge flows past a point in the circuit in one second. Symbolically characterized by the letter 'I' and sometimes 'A'
Amp
VHF
N.O.
Electron
9. The delayed period of time when outputs are turned off when power is initially applied.
Quartziodine Lamp
Time Delay Before Availability
Thermoelectricity
Electroduct
10. The method by which two devices or systems are connected and interact with each other.
International Brotherhood of Electrical Workers
Interface
UHF
Kilovolt
11. The speed or time rate of change of displacement.
M
Intrinsically safe
Underwriters Laboratories
Velocity
12. A highly accurate bridge configuration that is used to measure three-wire RTD thermometers.
Hard Wired
Mueller Bridge
Modulated Light Source Control
International Electrotechnical Commission
13. An electrical circuit that is not 'made'. Contacts - switches or similar devices are open and preventing the floe of current.
Frequency
VF
Quantum Electronics
Open Circuit
14. (AC); Electrical current that changes (or alternates) in magnitude and direction of the current at regular intervals.
Hazardous Location
Power Supply
Alternating Current
Series Circuit
15. A fundamental negatively (-) charged atomic particle that rotates around a positively (+) charged nucleus of the atom.
Latent heat
Electron
VOM
Canadian Standards Administration
16. An interconnected arrangement of parts for carrying high-voltage electricity.
Transient Protection
Electroduct
National Electrical Code
Micron
17. A variable resistor.
Rheostat
Maximum Power Rating
Kilovolt
Quasiparticle
18. The measure of the ability of a material or substance to carry electrical current.
Modulated Light Source Control
Cathode
Conductance
Kilowatt
19. A process that is kept at a constant temperature.
Isothermal
Break
Underwriters Laboratories
Chatter
20. Silicone Controlled Rectifier.
Interface
Weber
SCR
PSID
21. Pressure that is less than atmospheric pressure.
PSID
Vacuum
Zero Adjustment
Zener Diode
22. The opposition to electrical flow.
Underwriters Laboratories
Power Dissipation
Impedance
VHF
23. One millionth of a meter.
Electrolysis
Modulated Light Source Control
Threshold Response
Micron
24. 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(-).
Maximum Operating Temperature
Thermoelectricity
Charge
Polarity
25. The amount of heat needed to convert one pound of water to one pound of steam. Latent heat is expressed in BTU per pound.
Beta
Transient
Delta
Latent heat
26. The unit for capacitance. A capacitor that stored one coulomb of charge with one volt across it will have a value of one farad.
Farad
Thyristor
X ray
Supply Voltage
27. An electrical circuit that increases the power - voltage or current of an applied signal.
Plasma
Charge
Fluorescent
Amplifier
28. A reference point at zero potential with respect to the earth. In an electronic circuit it is the common return path for electric current. A conducting connection between the earth and an electrical circuit or electrical equipment. Also - the negativ
Joule
Conduction
National Fire Protection Association
Ground
29. IBEW;
Proximity Switch
Output
International Brotherhood of Electrical Workers
Ground
30. A switching device used in switching high DC loads. It contains a small permanent magnet which deflects arc in order to quench it.
Joule
Ohmeter
Magnetic Blow-out Switch
PSIA
31. A switch in a controller that manually resets after exceeding the controllers limit.
Quantum Electronics
Intrinsically safe
Manual Reset Switch
Frequency
32. Kwh; One thousand watt-hours.
Grounding Conductor
Kilowatt Hour
Electricity
Latent heat
33. The time delay between the output signal and the response time of the receiver of the signal.
Electromagnetic field
CMV
Lag
Beta
34. Symbol for Mega - one million.
Bridge Rectifier
Millimeter
M
Dilectric
35. Kva; One thousand volt amps.
Open Circuit
Kilovolt amperes
Conductance
Alternating Current
36. Resistance Temperature Detector.
Process Meter
Electricity
Charge
RTD
37. When there is current through a semiconductor p-n junction it is the resistance of a forward-biased junction.
Charge
Canadian Standards Administration
Forward resistance
PID
38. The unit of power. One watt equals one joule per second - 1/746th horsepower.
Filter
Vector
Watt
Thyristor
39. The basic of thermal energy. The work done by the force of one newton acting through a distance of one meter.
Grounded
International Organization for Standardization
Joule
Forward resistance
40. Electrical energy produced by the action of heat.
I
Amplifier
Thermoelectricity
Watt
41. A circuit element or components that allows signals of certain frequencies to pass and blocks signals of other frequencies.
Cathode
Electrodynamic
Filter
Electromagnetic field
42. 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.
Current
Conduction
UHF
Magnetic Field
43. The current that is gained by a transistor when it is connected in a common emitter circuit.
Lag
Electric circuit
Rheostat
Beta
44. The difference in potential measured between two points caused by resistance or impedance.
Voltage Drop
Field cell
XFMR
National Electrical Code
45. That part of a circuit which is physically interconnected.
Instrument Society of America
Transient Protection
Hard Wired
Electromagnetic field
46. FM; ~LINK~
I
M
Factory Mutual
Operating Temperature
47. The time it takes for a controller to complete one on/off cycle.
Electric circuit
Cycle Time
Vector
Proximity Switch
48. OSHA;
Occupational Safety & Health Administration
Latching logic
PSIA
Amp
49. Also known as Hertz - it is the number of complete cycles of periodic waveform that occur during a time period of one second.
Conductance
Y
Bridge Rectifier
Frequency
50. ANSI;
SCR
Coulomb
American National Standards Institute
Dilectric