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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 meter used to measure electrical resistance in units of ohms.
Transient Protection
Maximum Operating Temperature
Ohmeter
System International
2. IBEW;
International Brotherhood of Electrical Workers
Electrolysis
Lag
Weber
3. The method by which two devices or systems are connected and interact with each other.
Interface
Magnetic Blow-out Switch
Electrochemistry
Operating Temperature
4. 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.
Electrolysis
Zener Effect
Electricity
Infrared
5. Variable Frequency.
VF
Ohmeter
X ray
Magnetic Field
6. 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.
Velocity
Millimeter
Millivolt
Electrolysis
7. The amount of time it takes for a device to react to an input signal.
Quap
Canadian Standards Administration
Mean Temperature
Response Time
8. An electrical resistor composed of semiconductor material - whose resistance is a known rapidly varying function of temperature.
Milliamp
OR Logic
Delta
Thermistor
9. FM; ~LINK~
Voltage Drop
Isothermal
Filament
Factory Mutual
10. Kw; One thousand watts.
Kilowatt
I
Environmental Protection Agency
Millimeter
11. One millionth of a meter.
Micron
Quartz
Electrochemistry
Infrared
12. UL; ~LINK~
Proximity Sensor
Underwriters Laboratories
Anode
Latent heat
13. An electrical circuit that increases the power - voltage or current of an applied signal.
Potentiometer
Amplifier
Magnetic Flux
Response Time
14. 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.
Make
X ray
Infrared
Millivolt
15. The energy delivered by a circuit or device. The electrical signal produced by the input to the transducer.
Institute of Electrical and Electronics Engineers
Conduction
Conductor
Output
16. The time delay between the output signal and the response time of the receiver of the signal.
Lag
Magnetic Flux
Institute of Electrical and Electronics Engineers
Zener Diode
17. Symbol for Mega - one million.
Ampere
Open Circuit
RTD
M
18. The time it takes for a controller to complete one on/off cycle.
Response Time
Quantum Electronics
Millivolt
Cycle Time
19. The quality of having the ability to emit light when struck by electrons or another form of radiation.
Fluorescent
Actuator
Electron
Pulse
20. Intensity. The commonly used symbol used to represent Amperes when used in formulas. I = Intensity = Current = Amps = Amperes.
I
Intrinsically safe
Amplifier
Thermistor
21. A device having two terminals and has a low resistance to electrical current in one direction and a high resistance in the other direction.
Current Proportioning
Occupational Safety & Health Administration
Diode
Milliamp
22. A device used to store electrical energy in an electrostatic field until discharge.
Ripple
BTU
Capacitor
Field-Effect Transistor (FET)
23. Current Consumption. The amount of amps or milliamps needed to maintain operation of a control or device.
Supply Current
Electrochemistry
Latching logic
RFI
24. 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
Zero Adjustment
National Electrical Code
Conductance
25. Very High Frequency.
Mean Temperature
Transient Protection
VHF
Response Time
26. Pounds per square inch absolute. Pressure commonly in reference to vacuum.
PSIA
Direct Current
Delta
X ray
27. The maximum watts that a device can safely handle.
Zero Adjustment
Maximum Power Rating
Amp
Process Meter
28. A meter used to measure units of volts.
Ampere
International Organization for Standardization
Quantum Electronics
Voltmeter
29. The delayed period of time when outputs are turned off when power is initially applied.
Farad
Zener Diode
Time Delay Before Availability
National Fire Protection Association
30. A fluctuation in the intensity of a steady current.
Chatter
Electrolyte
Ripple
Maximum Load Current
31. CSA ~LINK~
VOM
Leakage current
Canadian Standards Administration
Gain
32. European environmental ratings. Similar to NEMA ratings in the USA. IP;*site has NEMA comparisons ~LINK~
Ingress Protection Ratings
Load
Phase Proportioning
Conduction
33. Two dissimilar metals connected at a point - that produce an electrical current whose magnitude is dependent upon the temperature at the junction point.
Thermocouple
Factory Mutual
Y
AWG
34. Protective circuitry to guard against spikes that might be induced on the supply line.
Transient Protection
Quark
Flux
Operating Temperature
35. 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
Charge
Direct Current
Ohm
SCR
36. Radio Frequency Interference.
RFI
National Electrical Code
Millivolt
Relay
37. A hypothetical basic subatomic nuclear particle believed to be the basic component of protons - neutrons - etc.
Quark
Joule
Maximum Operating Temperature
RFI
38. A sudden and unwanted increase or decrease of supply voltage or current.
Grounding Conductor
Transient
Beta
Circuit
39. Or Hertz; The measurement of the time period of one alternating electric current. In the United States this is commonly 60 cycles per second - or 60 Hertz.
Milliamp
Velocity
Ampere
Cycle
40. The amount of energy released in a nuclear reaction. It is expressed in atomic mass units - or in million electron volts (MEV).
OR Logic
Ohmeter
UHF
Q-value
41. See; 'Proximity Sensor'.
Proximity Switch
Millivolt
Conduit
Lag
42. The unit for capacitance. A capacitor that stored one coulomb of charge with one volt across it will have a value of one farad.
Farad
Phase Proportioning
Quasiparticle
Transient Protection
43. An ionized gas containing about equal numbers of positive and negative charges - which is a good conductor of electricity - and is affected by a magnetic field.
Momentary switch
XFMR
Plasma
Isothermal
44. A hypothetical nuclear of a quark plus an antiproton.
Quap
Circuit
Filter
PSID
45. '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.
Capacitor
Grounded
SCR
BTU
46. Inspection - analysis and action required to ensure quality of output.
Magnetic Flux
Quality Control
Grounding Conductor
RFI
47. Resistance Temperature Detector.
Impedance
RTD
Electromagnetic field
Electricity
48. 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.
Pulse
Isothermal
Quasiparticle
Conduit
49. A device incorporating semiconductor material and suitable contacts capable of performing electrical functions (such as voltage - current or power amplification) with low power requirements.
Supply Current
Transistor
Electric circuit
Canadian Standards Administration
50. An area in which combustible or flammable mixtures are or could be present.
Hazardous Location
Micron
Kilovolt amperes
Ohm