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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 fluctuation in the intensity of a steady current.
Thyristor
Vacuum
Light Emitting Diode
Ripple
2. An interconnected arrangement of parts for carrying high-voltage electricity.
Circuit
Electroduct
Break
Infrared
3. A three mode control consisting of time Proportioning - Integral and Derivative rate action.
Factory Mutual
Zener Effect
Charge
PID
4. That part of a circuit which is physically interconnected.
Kilowatt Hour
UHF
Hard Wired
American National Standards Institute
5. When there is current through a semiconductor p-n junction it is the resistance of a forward-biased junction.
Forward resistance
Joule
Milliamp
Vector
6. Intensity. The commonly used symbol used to represent Amperes when used in formulas. I = Intensity = Current = Amps = Amperes.
Electromagnet
Power Supply
Pulse
I
7. The delayed period of time when outputs are turned off when power is initially applied.
Filament
Mil
Time Delay Before Availability
Y
8. The mechanism of a switch which operates the contacts.
Electron
Thermistor
Actuator
SCR
9. 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
Filament
Make
Frequency
10. The speed or time rate of change of displacement.
Velocity
Phase
Electrolyte
M
11. The unit of power. One watt equals one joule per second - 1/746th horsepower.
Proximity Switch
Plasma
Watt
Absolute Zero
12. The average temperature of a process.
Mean Temperature
Relay
Open Circuit
Vector
13. Pounds per square inch gage. Pressure in relationship to the ambient air pressure>
Anode
Vector
PSIA
PSIG
14. Commonly used in generators and motors - it is an electromagnet formed from a coil of insulated wire that is wound around a soft iron core.
Field cell
Make
Occupational Safety & Health Administration
VOM
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.
Break
Mean Temperature
Power Supply
Ingress Protection Ratings
16. A hypothetical nuclear of a quark plus an antiproton.
Quap
VHF
Ripple
Hard Wired
17. A switch in a controller that manually resets after exceeding the controllers limit.
Ohmeter
Ground
Weber
Manual Reset Switch
18. UL; ~LINK~
Time Delay Before Availability
Ohm
Underwriters Laboratories
Filter
19. 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.
Kilovolt amperes
BTU
Millivolt
Load
20. A highly accurate bridge configuration that is used to measure three-wire RTD thermometers.
Diode
System International
Mil
Mueller Bridge
21. The quality of having the ability to emit light when struck by electrons or another form of radiation.
Quap
Mean Temperature
Infrared
Fluorescent
22. RMS; AC voltage that equals DC voltage that will do the same amount of work. For an AC sine wave it is 0.707 x peak voltage.
Maximum Power Rating
OR Logic
Make
Root Mean Square
23. An electrical circuit that increases the power - voltage or current of an applied signal.
X ray
Volt
Infrared
Amplifier
24. SI; The standard metric system of units.
Series Circuit
System International
Cycle Time
Maximum Load Current
25. Electric current passing through an electrolyte which produces chemical changes in it.
Electrolysis
Filament
Quantum Electronics
National Fire Protection Association
26. 'American Wire Gauge' system used to determine wire size.
Electrochemistry
Proximity Switch
AWG
Filter
27. A device that converts AC voltage to pulsating DC voltage.
Dilectric
Electron
Rectifier
Grounded
28. The range of temperature over which a device may be safely used. The temperature range which the device has been designed to operate.
Ohm
Environmental Protection Agency
Alternating Current
Operating Temperature
29. The time it takes for a controller to complete one on/off cycle.
Cycle Time
Conduction
Kilovolt amperes
Time Delay Before Availability
30. A meter used to measure electrical resistance in units of ohms.
Gain
On/Off Controller
Ohmeter
Working Standard
31. A temperature scale. Also known as centigrade. Sea level water will freeze at 0
Ripple
Kilowatt Hour
Celsius
Electron
32. 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(-).
Charge
National Electrical Manufacturers Association
Output
Zero Adjustment
33. Symbol used for wye configuration for three phase electrical connections.
Y
Proximity Sensor
Electromagnet
Underwriters Laboratories
34. A negative (-) electrode. The point of entry of electrons into a device from an external circuit. The negative electrode of a semiconductor diode.
Cathode
Electrode
Canadian Standards Administration
Current Proportioning
35. Inspection - analysis and action required to ensure quality of output.
Quality Control
National Electrical Code
Maximum Load Current
Millivolt
36. The measure of the ability of a material or substance to carry electrical current.
Root Mean Square
Kilovolt amperes
Conductance
Quartz
37. Electric and magnetic force field that surrounds a moving electric charge.
Cycle Time
Manual Reset Switch
Phase Proportioning
Electromagnetic field
38. An electromagnetic radiation produced when the inner satellite electrons of heavy atoms have been excited by collision with a stream of fast electrons return to their ground state - giving up the energy previously imparted to them.
National Electrical Code
X ray
SCR
Power Dissipation
39. The act of the opening of an electrical circuit.
VHF
Cycle
Break
Filter
40. A solid-state switching device for semiconductors to convert AC current in one of two directions controlled by an electrode.
Plasma
Thyristor
Cycle
Supply Current
41. Pounds per square inch absolute. Pressure commonly in reference to vacuum.
Institute of Electrical and Electronics Engineers
Series Circuit
PID
PSIA
42. OSHA;
Occupational Safety & Health Administration
Electrokinetics
Millivolt
Micron
43. 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.
Actuator
Grounding Conductor
Joule
Field-Effect Transistor (FET)
44. A silicone semiconductor that maintains a fixed voltage in a circuit.
Zener Diode
Conduction
PSID
Rectifier
45. 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.
Leakage current
Cathode
Modulated Light Source Control
Efficiency
46. -459.67
Dilectric
Absolute Zero
Zero Adjustment
Institute of Electrical and Electronics Engineers
47. An electrical circuit that is not 'made'. Contacts - switches or similar devices are open and preventing the floe of current.
Open Circuit
Cycle Time
Chatter
Latching logic
48. A form of silicone dioxide. Commonly used in the making of radio transmitters and heat resistant products.
Quartz
Flux
Infrared
Alternating Current
49. To close an electrical circuit. To establish an electrical circuit through the closing of a contact - switch or other related device.
Modulated Light Source Control
Make
Field cell
Filament
50. A unit of energy in solid-state physics with mass and momentum but that does not exist as a free particle.
Quasiparticle
Underwriters Laboratories
Magnetic Flux
Ingress Protection Ratings