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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. The range of voltage needed to maintain operation of a control or device.
Celsius
Supply Voltage
Grounded
Watt
2. A hypothetical basic subatomic nuclear particle believed to be the basic component of protons - neutrons - etc.
Quark
Farad
Isothermal
Process Meter
3. A rise and fall of voltage - current - or other faction that would be constant under normal conditions. A pulse that is intentionally induced will have a finite duration time.
Electrodynamic
Pulse
BTU
Impedance
4. kV; One thousand volts.
Field cell
Canadian Standards Administration
Supply Voltage
Kilovolt
5. 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.
Light Emitting Diode
Power Supply
Potentiometer
VOM
6. SI; The standard metric system of units.
System International
VF
Voltmeter
Flux
7. The time delay between the output signal and the response time of the receiver of the signal.
Lag
Kilowatt Hour
Ohm
Impedance
8. The amount of energy released in a nuclear reaction. It is expressed in atomic mass units - or in million electron volts (MEV).
Q-value
Electrode
Load
XFMR
9. The maximum temperature at which a device can be safely operated.
Interface
RTD
Maximum Operating Temperature
Power Supply
10. IEEE;
Ohm
Institute of Electrical and Electronics Engineers
Intrinsically safe
Dilectric
11. A device used to store electrical energy in an electrostatic field until discharge.
Farad
Capacitor
International Brotherhood of Electrical Workers
Quantum Electronics
12. ISO;
International Organization for Standardization
Electron
Phase Proportioning
Instrument Society of America
13. A form of control where the power supplied to a process is controlled by limiting the phase angle of the line voltage.
Phase Proportioning
Magnetic Blow-out Switch
OR Logic
Grounded
14. A solid-state switching device for semiconductors to convert AC current in one of two directions controlled by an electrode.
Flux
Thyristor
Conduction
Millimeter
15. Pounds per square inch absolute. Pressure commonly in reference to vacuum.
PSIA
Vector
Voltage Drop
SCR
16. UL; ~LINK~
Transistor
Underwriters Laboratories
Electrolysis
VOM
17. The method by which two devices or systems are connected and interact with each other.
Electromagnetic field
Forward Voltage
Field-Effect Transistor (FET)
Interface
18. 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.
Celsius
Field cell
Magnetic Blow-out Switch
Cycle
19. Very High Frequency.
Open Circuit
VHF
National Electrical Manufacturers Association
Plasma
20. See; 'Proximity Sensor'.
Magnetic Flux
Coulomb
PSIG
Proximity Switch
21. A fluctuation in the intensity of a steady current.
Amp
National Electrical Code
Ripple
Chatter
22. Volt-ohm Meter.
VOM
Mueller Bridge
Operating Temperature
Kilowatt
23. An electrical resistor composed of semiconductor material - whose resistance is a known rapidly varying function of temperature.
Current
Electrolyte
AWG
Thermistor
24. Pounds per square inch differential. The difference in pressure between two points.
Diode
PSID
Kilovolt
Make
25. The rate of transfer of energy.
Supply Current
Time Delay Before Availability
Weber
Flux
26. 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
Hard Wired
Intrinsically safe
Charge
Efficiency
27. The range of temperature over which a device may be safely used. The temperature range which the device has been designed to operate.
Operating Temperature
Electricity
Ingress Protection Ratings
International Brotherhood of Electrical Workers
28. A full-wave rectifier where the diodes are connected in a bridge circuit. This allows the current to the load during both the positive and negative alternating of the supply voltage.
Quartziodine Lamp
Conductor
Watt
Bridge Rectifier
29. The element inside a vacuum tube - incandescent lamp or other similar device.
Celsius
National Fire Protection Association
American National Standards Institute
Filament
30. The amount of power that is consumed and converted to heat.
Power Dissipation
Forward resistance
Phase Proportioning
Thermocouple
31. The output that is produced when one or more inputs are present.
Grounding Conductor
Forward Voltage
OR Logic
Electric circuit
32. One millionth of a volt.
Cathode
Microvolt
Thermistor
Ohmeter
33. A form of silicone dioxide. Commonly used in the making of radio transmitters and heat resistant products.
Quartz
Conduit
Forward Voltage
Electrode
34. A fundamental negatively (-) charged atomic particle that rotates around a positively (+) charged nucleus of the atom.
Electron
Electromagnet
Leakage current
Cycle
35. IBEW;
International Brotherhood of Electrical Workers
UHF
Ingress Protection Ratings
N.C.
36. 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(-).
Thermoelectricity
PSIA
Charge
Occupational Safety & Health Administration
37. A full path of electrical current from a voltage source that passes completely from one terminal of the voltage source to another.
Circuit
Quap
Bridge Rectifier
International Organization for Standardization
38. The resistance to electrical current. Resistance is measured in ohms.
Resistance
Microamp
Factory Mutual
Hazardous Location
39. The adjustment of a display that results are zero on the display corresponding to a non-zero signal.
Kilowatt Hour
Mueller Bridge
Zero Adjustment
Filament
40. The unit of power. One watt equals one joule per second - 1/746th horsepower.
Response Time
Triac
Watt
Interface
41. (AC); Electrical current that changes (or alternates) in magnitude and direction of the current at regular intervals.
Maximum Load Current
Alternating Current
PSIA
Modulated Light Source Control
42. A circuit which may have one or many resistors and/or other various devices connected in a series so that the current has only one path to follow.
Series Circuit
Electricity
Voltmeter
I
43. A switch in a controller that manually resets after exceeding the controllers limit.
Capacitor
Grounded Conductor
Manual Reset Switch
Cycle
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.
American National Standards Institute
I
Grounding Conductor
National Electrical Manufacturers Association
45. -459.67
Absolute Zero
Hard Wired
Working Standard
Coulomb
46. A unit of energy in solid-state physics with mass and momentum but that does not exist as a free particle.
Triac
Quasiparticle
Zener Effect
Cycle
47. Pounds per square inch gage. Pressure in relationship to the ambient air pressure>
Current Proportioning
Electromagnetic field
PSIG
RTD
48. A process that is kept at a constant temperature.
Velocity
Farad
Isothermal
Alternating Current
49. The electrical demand of a process. Load can be expressed or calculated as amps (current) - ohms (resistance) or watts (power).
Load
Ripple
Intrinsically safe
National Electrical Code
50. Inspection - analysis and action required to ensure quality of output.
Canadian Standards Administration
Response Time
Momentary switch
Quality Control