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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.
International Brotherhood of Electrical Workers
Joule
Electricity
PID
2. (DC); Electrical current that flows consistently in one direction only.
Direct Current
Electrode
Thyristor
International Brotherhood of Electrical Workers
3. The current that is gained by a transistor when it is connected in a common emitter circuit.
Millivolt
Flux
Threshold Response
Beta
4. The unit for capacitance. A capacitor that stored one coulomb of charge with one volt across it will have a value of one farad.
Modulated Light Source Control
System International
National Electrical Manufacturers Association
Farad
5. A controller whose action is either fully on or off.
Environmental Protection Agency
Grounding Conductor
Circuit
On/Off Controller
6. Pressure that is less than atmospheric pressure.
Operating Temperature
Vacuum
Kilowatt
Vector
7. LED; A solid state light source component that emits light or invisible infrared radiation.
Joule
Current
Light Emitting Diode
XMTR
8. NEC: A set of regulations pertaining to electrical installation and design in the interest of the protection of life and property. The NEC is adopted by NFPA and approved by ANSI. It is the preferred standard of guidelines used by most electrical reg
Environmental Protection Agency
Kilowatt
PID
National Electrical Code
9. A hypothetical nuclear of a quark plus an antiproton.
Latching logic
Quap
Momentary switch
Bridge Rectifier
10. A full path of electrical current from a voltage source that passes completely from one terminal of the voltage source to another.
Zero Adjustment
Circuit
Thermistor
Dilectric
11. Non-conducting material used to isolate and/or insulate energized electrical components.
Magnetic Flux
Dilectric
On/Off Controller
Charge
12. An anode (+) or cathode (-) conductor on a device through which an electric current passes.
N.O.
Electrode
Farad
Plasma
13. 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
Intrinsically safe
Thermistor
PSIA
Electromagnetic field
14. The unit of power. One watt equals one joule per second - 1/746th horsepower.
International Electrotechnical Commission
Watt
Intrinsically safe
Make
15. 'Common Mode Voltage.' The voltage which is tolerable between signal and ground.
Quap
Impedance
CMV
Latent heat
16. The form of radiation used to make non-contact temperature measurements. In the electromagnetic spectrum it is the area beyond red light from 760 nanometers to 1000 microns.
VF
Infrared
Working Standard
Power Supply
17. A circuit conductor that is grounded to become part of the electric circuit by design and intent.
Power Dissipation
Grounded Conductor
Grounded
Phase Proportioning
18. 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
PID
Ground
Zener Diode
Environmental Protection Agency
19. 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.
Grounded Conductor
Magnetic Field
International Brotherhood of Electrical Workers
Quality Control
20. A switch in a controller that manually resets after exceeding the controllers limit.
Manual Reset Switch
Electrode
Open Circuit
Mueller Bridge
21. A device that converts AC voltage to pulsating DC voltage.
Hazardous Location
Rectifier
Thermistor
Bridge Rectifier
22. A silicone semiconductor that maintains a fixed voltage in a circuit.
M
Microvolt
Cathode
Zener Diode
23. ISO;
Mueller Bridge
Series Circuit
M
International Organization for Standardization
24. The magnitude and time phase of a quantity - represented by a plotted line.
Vector
Institute of Electrical and Electronics Engineers
On/Off Controller
RTD
25. The measure of the ability of a material or substance to carry electrical current.
Ohmeter
Conductance
Zener Diode
Institute of Electrical and Electronics Engineers
26. In a three phase connection all three phases are connected in series thus forming a closed circuit.
Delta
Factory Mutual
Field cell
Output
27. The electrical demand of a process. Load can be expressed or calculated as amps (current) - ohms (resistance) or watts (power).
Supply Voltage
Amplifier
Load
Magnetic Blow-out Switch
28. Electric and magnetic force field that surrounds a moving electric charge.
Current Proportioning
Resistance
Electromagnetic field
Transient Protection
29. An electrical resistor composed of semiconductor material - whose resistance is a known rapidly varying function of temperature.
Coulomb
Microamp
Field-Effect Transistor (FET)
Thermistor
30. One thousandth of an inch.
Manual Reset Switch
Mil
Frequency
Time Delay Before Availability
31. The modification of a signal that causes the output to remain energized until it is released by intent.
PID
Supply Voltage
UHF
Latching logic
32. A fundamental negatively (-) charged atomic particle that rotates around a positively (+) charged nucleus of the atom.
Electron
Potentiometer
Instrument Society of America
Filament
33. Resistance Temperature Detector.
RTD
Response Time
Electrode
Alternating Current
34. A meter used to measure units of volts.
CMV
American National Standards Institute
Gain
Voltmeter
35. Applying molecular physics to electronics.
Quantum Electronics
Conduit
BTU
Proximity Sensor
36. (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'
SCR
Amp
Operating Temperature
Delta
37. 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.
X ray
Coulomb
Dilectric
Quantum
38. Pounds per square inch differential. The difference in pressure between two points.
PSID
Maximum Load Current
Forward resistance
UHF
39. The opposition to electrical flow.
Vector
Voltage Drop
PSIG
Impedance
40. FM; ~LINK~
Threshold Response
Watt-hour
Occupational Safety & Health Administration
Factory Mutual
41. The range of temperature over which a device may be safely used. The temperature range which the device has been designed to operate.
Canadian Standards Administration
Operating Temperature
Phase
PSIA
42. The range of voltage needed to maintain operation of a control or device.
Supply Voltage
Break
Rheostat
Electrolysis
43. CSA ~LINK~
Canadian Standards Administration
Thermocouple
Hard Wired
Voltage Drop
44. The time it takes for a controller to complete one on/off cycle.
Cycle Time
XMTR
Intrinsically safe
Transistor
45. A meter used to measure electrical resistance in units of ohms.
Ohmeter
Mil
Anode
Transistor
46. The standard that is used to make comparison measurements or calibrations.
Working Standard
Dilectric
PSIA
Make
47. To close an electrical circuit. To establish an electrical circuit through the closing of a contact - switch or other related device.
Weber
PSIA
Make
Amplifier
48. A variable resistor.
Electromagnet
Maximum Operating Temperature
Millimeter
Potentiometer
49. The method by which two devices or systems are connected and interact with each other.
Working Standard
Maximum Load Current
Lag
Interface
50. 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.
Series Circuit
Volt
Phase Proportioning
Amp