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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. An anode (+) or cathode (-) conductor on a device through which an electric current passes.
Efficiency
Electrode
Thermoelectricity
Environmental Protection Agency
2. 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
Ground
Zener Diode
Amplifier
N.C.
3. A device that transfers power or energy from one system to another - such as taking a physical quality and changing it to an electrical signal.
Series Circuit
Efficiency
Transducer
Grounded Conductor
4. The range of voltage needed to maintain operation of a control or device.
Make
Electrode
Supply Voltage
Hazardous Location
5. An electrical circuit that increases the power - voltage or current of an applied signal.
Quasiparticle
Latching logic
Amplifier
Make
6. One of the very small discrete packets into which many forms of energy are subdivided.
Actuator
Break
Quantum
System International
7. A fluctuation in the intensity of a steady current.
Occupational Safety & Health Administration
Field cell
Ripple
Micron
8. An electrically conductive fused salt or a solution where the charge is carried by ionic movement.
Micron
Millivolt
Electrolyte
Ripple
9. The time based relationship between a reference and a periodic function.
Phase
Make
Response Time
Anode
10. NFPA;
Quartziodine Lamp
National Fire Protection Association
Quartz
Absolute Zero
11. The measure of the ability of a material or substance to carry electrical current.
Gain
Ohm
Conductance
Kilovolt
12. Magnetically - opposite poles - north and south. In electricity - oppositely charged poles - positive and negative.
PSIG
Polarity
National Electrical Manufacturers Association
Interface
13. IEEE;
Light Emitting Diode
Forward Voltage
Institute of Electrical and Electronics Engineers
Voltmeter
14. A solid-state switching device used in switching AC wave forms.
Grounded Conductor
Microvolt
Triac
Impedance
15. The increase of the power level - current or voltage of a signal. In an amplifier it is the ratio of the output to the input signal levels.
Gain
Electrode
International Brotherhood of Electrical Workers
Series Circuit
16. Electric current passing through an electrolyte which produces chemical changes in it.
Vacuum
Voltmeter
Plasma
Electrolysis
17. SI; The standard metric system of units.
Factory Mutual
Volt
System International
Proximity Switch
18. A material used to conduct electricity or heat.
Make
Conductor
Triac
Potentiometer
19. The basic of thermal energy. The work done by the force of one newton acting through a distance of one meter.
X ray
Joule
Supply Voltage
Fluorescent
20. ISO;
Magnetic Blow-out Switch
International Organization for Standardization
Velocity
Diode
21. One millionth of an amp.
Microamp
American National Standards Institute
Zener Diode
Electromagnetic field
22. A device used to store electrical energy in an electrostatic field until discharge.
Capacitor
Voltmeter
Instrument Society of America
RFI
23. A positive (+) electrode. The point where electrons exit from a device to the external electric circuit.
Absolute Zero
Rectifier
Electrokinetics
Anode
24. A variable resistor.
Electrokinetics
Occupational Safety & Health Administration
Field-Effect Transistor (FET)
Potentiometer
25. The behavior of charged particles and the steady motion of charge in magnetic and electric fields.
Underwriters Laboratories
Electrokinetics
Diode
Ingress Protection Ratings
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
Intrinsically safe
Voltmeter
Kilowatt Hour
Micron
27. Inspection - analysis and action required to ensure quality of output.
Kilovolt
Quality Control
Zener Diode
Proximity Sensor
28. The current that is gained by a transistor when it is connected in a common emitter circuit.
Canadian Standards Administration
Conductor
Beta
Supply Current
29. The energy delivered by a circuit or device. The electrical signal produced by the input to the transducer.
Anode
Output
Latching logic
Occupational Safety & Health Administration
30. 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.
Watt-hour
Field cell
Supply Current
Transient Protection
31. Volt-ohm Meter.
Q-value
Quality Control
Field-Effect Transistor (FET)
VOM
32. An electrical circuit that is not 'made'. Contacts - switches or similar devices are open and preventing the floe of current.
Load
VHF
Open Circuit
Ripple
33. kV; One thousand volts.
Kilovolt
Kilowatt Hour
Transistor
OR Logic
34. The resistance to electrical current. Resistance is measured in ohms.
Electric circuit
Resistance
Electron
CMV
35. The amount of time it takes for a device to react to an input signal.
Momentary switch
Response Time
Kilowatt Hour
Thermistor
36. Kw; One thousand watts.
Kilowatt
Electrode
System International
Polarity
37. NEMA;
PSIG
CMV
Direct Current
National Electrical Manufacturers Association
38. FM; ~LINK~
Lag
Transient Protection
Isothermal
Factory Mutual
39. The delayed period of time when outputs are turned off when power is initially applied.
Lag
Time Delay Before Availability
Circuit
Dilectric
40. The rapid on/off cycling of a relay caused by improper signal or adjustment - faulty contacts - or other malfunction.
Grounded
Chatter
Thermistor
Light Emitting Diode
41. A unit of energy in solid-state physics with mass and momentum but that does not exist as a free particle.
Power Supply
Output
Quasiparticle
Vacuum
42. A unit of electric charge. The amount of charge conveyed in one second by one ampere.
Supply Voltage
Watt
Kilovolt
Coulomb
43. A variable resistor.
Magnetic Flux
Rheostat
OR Logic
RFI
44. Chemical changes and energy produced by electric currents.
Hazardous Location
Electrochemistry
Electromagnetic field
Mean Temperature
45. (DC); Electrical current that flows consistently in one direction only.
Conduit
Grounded
Mean Temperature
Direct Current
46. 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
Quality Control
Interface
Quantum
47. 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.
Joule
Pulse
Light Emitting Diode
SCR
48. Response to the change in the level of the input signal.
Threshold Response
PSID
Bridge Rectifier
Magnetic Flux
49. The output that is produced when one or more inputs are present.
VF
Proximity Sensor
OR Logic
Ingress Protection Ratings
50. Kwh; One thousand watt-hours.
Output
Thermoelectricity
Diode
Kilowatt Hour