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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 Solid State relay is a switching device that completes or interrupts a circuit electrically and has no moving parts. A Mechanical relay is an electromechanical device that closes contacts to complete a circuit or opens contacts to interrupt a circu
Relay
Occupational Safety & Health Administration
Magnetic Field
Load
2. Expressed in webers - it is the product of the average normal component of the magnetic intensity over a surface and the area of that surface.
Triac
Frequency
Grounding Conductor
Magnetic Flux
3. A connected path to earth or to a conductive body that has a reference potential to earth.
Impedance
Ingress Protection Ratings
Farad
Grounded
4. The magnitude and time phase of a quantity - represented by a plotted line.
Microvolt
Voltage Drop
Electrodynamic
Vector
5. Silicone Controlled Rectifier.
Ground
Output
SCR
Zener Effect
6. Electric current passing through an electrolyte which produces chemical changes in it.
Magnetic Field
Direct Current
Occupational Safety & Health Administration
Electrolysis
7. A high-intensity incandescent lamp with a quartz bulb containing an inert gas of iodine or bromine vapor.
Quartziodine Lamp
Response Time
Frequency
M
8. The opposition to electrical flow.
Impedance
Delta
National Electrical Code
Power Supply
9. CSA ~LINK~
Thermoelectricity
Ampere
Canadian Standards Administration
Grounded
10. A unit of electrical current named after French physicist Andr
Environmental Protection Agency
AWG
Ampere
Pulse
11. The modification of a signal that causes the output to remain energized until it is released by intent.
Latching logic
Quark
National Fire Protection Association
Maximum Operating Temperature
12. A silicone semiconductor that maintains a fixed voltage in a circuit.
Micron
Ampere
Maximum Operating Temperature
Zener Diode
13. 'Common Mode Voltage.' The voltage which is tolerable between signal and ground.
Lag
CMV
Working Standard
Bridge Rectifier
14. A tube - pipe or trough that carries and protects electric wiring.
Thermocouple
Conduit
American National Standards Institute
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.
Canadian Standards Administration
International Electrotechnical Commission
National Electrical Code
Power Supply
16. IBEW;
International Brotherhood of Electrical Workers
Latent heat
Triac
Cathode
17. Response to the change in the level of the input signal.
Latching logic
Threshold Response
Weber
Electrolyte
18. The quality of having the ability to emit light when struck by electrons or another form of radiation.
Load
Maximum Operating Temperature
Power Dissipation
Fluorescent
19. A negative (-) electrode. The point of entry of electrons into a device from an external circuit. The negative electrode of a semiconductor diode.
Transistor
Frequency
Zener Effect
Cathode
20. The rate of transfer of energy.
Flux
Maximum Load Current
Working Standard
On/Off Controller
21. One thousandth of an inch.
Mil
Working Standard
Volt
Rheostat
22. 'American Wire Gauge' system used to determine wire size.
Electrodynamic
Ohm
AWG
Hazardous Location
23. The time delay between the output signal and the response time of the receiver of the signal.
Lag
Conduit
Magnetic Flux
Load
24. 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.
National Fire Protection Association
Capacitor
Potentiometer
Electricity
25. 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
Latent heat
Instrument Society of America
Institute of Electrical and Electronics Engineers
Ohm
26. A circuit element or components that allows signals of certain frequencies to pass and blocks signals of other frequencies.
Proximity Switch
Magnetic Flux
Filter
Conduit
27. The power of one watt operating for one hour - and equal to 3 -600 joules.
OR Logic
Electromagnetic field
Watt-hour
Ground
28. The behavior of charged particles and the steady motion of charge in magnetic and electric fields.
N.O.
Leakage current
Electrokinetics
Maximum Power Rating
29. The act of the opening of an electrical circuit.
Break
Series Circuit
Mueller Bridge
Transient Protection
30. That part of a circuit which is physically interconnected.
Electrolyte
Hard Wired
Proximity Sensor
Maximum Power Rating
31. MV; One thousandth of a volt. The difference in potential needed to cause a current of one milliampere flow through a resistance of one ohm.
Conduit
Electromagnetic field
Millivolt
Milliamp
32. A solid-state switching device for semiconductors to convert AC current in one of two directions controlled by an electrode.
Rectifier
Thyristor
Phase
XFMR
33. The maximum temperature at which a device can be safely operated.
Micron
Environmental Protection Agency
Kilovolt
Maximum Operating Temperature
34. '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.
Process Meter
BTU
Farad
Zener Effect
35. The element inside a vacuum tube - incandescent lamp or other similar device.
Magnetic Blow-out Switch
PID
Watt
Filament
36. FM; ~LINK~
Transistor
Factory Mutual
I
SCR
37. A switching device used in switching high DC loads. It contains a small permanent magnet which deflects arc in order to quench it.
Thermoelectricity
Magnetic Blow-out Switch
Supply Voltage
Milliamp
38. Symbol used for wye configuration for three phase electrical connections.
Voltage Drop
Dilectric
Maximum Operating Temperature
Y
39. Electric and magnetic force field that surrounds a moving electric charge.
Electrolyte
Electromagnetic field
N.O.
Thermoelectricity
40. Normally Closed.
Break
Flux
N.C.
Process Meter
41. A form of silicone dioxide. Commonly used in the making of radio transmitters and heat resistant products.
Quartz
Voltmeter
XMTR
Manual Reset Switch
42. A three mode control consisting of time Proportioning - Integral and Derivative rate action.
Anode
Amp
PID
Field cell
43. A form of control where the power supplied to a process is controlled by limiting the phase angle of the line voltage.
Conduction
Phase Proportioning
Momentary switch
AWG
44. -459.67
Micron
Watt
Absolute Zero
Maximum Power Rating
45. Normally Open.
Conduit
N.O.
XMTR
Mueller Bridge
46. The resistance to electrical current. Resistance is measured in ohms.
Resistance
UHF
Lag
Quap
47. A sudden and unwanted increase or decrease of supply voltage or current.
Capacitor
Transient
Zero Adjustment
Phase
48. An area in which combustible or flammable mixtures are or could be present.
Hazardous Location
Microamp
OR Logic
M
49. Pounds per square inch absolute. Pressure commonly in reference to vacuum.
Electrolysis
Efficiency
PSIA
Dilectric
50. When there is current through a semiconductor p-n junction it is the resistance of a forward-biased junction.
Proximity Switch
On/Off Controller
Forward resistance
Latent heat