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Test your basic knowledge |
Electrical Components
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Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
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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 basic of thermal energy. The work done by the force of one newton acting through a distance of one meter.
Occupational Safety & Health Administration
Electron
Polarity
Joule
2. The standard unit of magnetic flux.
Absolute Zero
Weber
Rectifier
Maximum Operating Temperature
3. The power of one watt operating for one hour - and equal to 3 -600 joules.
SCR
Watt-hour
Transient
VOM
4. The moving of electricity or heat through a conductor.
Zero Adjustment
Conduction
Thyristor
Threshold Response
5. 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.
Forward Voltage
Volt
Grounded Conductor
RFI
6. 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.
UHF
Alternating Current
Phase
Grounding Conductor
7. Output power divided by input power - (work performed in ratio to energy used to produce it).
Root Mean Square
Efficiency
Actuator
Resistance
8. The unit of power. One watt equals one joule per second - 1/746th horsepower.
National Fire Protection Association
Amp
Watt
Grounded
9. A form of control where the power supplied to a process is controlled by limiting the phase angle of the line voltage.
Dilectric
Impedance
Phase Proportioning
Field-Effect Transistor (FET)
10. The standard that is used to make comparison measurements or calibrations.
Velocity
Working Standard
Watt
Kilowatt
11. An area in which combustible or flammable mixtures are or could be present.
Conductance
Hazardous Location
Proximity Switch
American National Standards Institute
12. Volt-ohm Meter.
Microamp
VOM
I
Resistance
13. Chemical changes and energy produced by electric currents.
Cycle Time
Electrochemistry
Watt
OR Logic
14. One thousandth of an inch.
Maximum Load Current
Field cell
Factory Mutual
Mil
15. Symbol for Mega - one million.
M
Quark
Impedance
Occupational Safety & Health Administration
16. The speed or time rate of change of displacement.
Electromagnetic field
National Fire Protection Association
Kilovolt
Velocity
17. The element inside a vacuum tube - incandescent lamp or other similar device.
Filament
Electric circuit
Forward resistance
National Fire Protection Association
18. The interaction of magnetism and electrical current.
Field-Effect Transistor (FET)
Ohmeter
Flux
Electrodynamic
19. (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'
Cycle Time
Amp
PSID
Current
20. -459.67
Amp
Absolute Zero
Mil
Q-value
21. ANSI;
Triac
Fluorescent
Bridge Rectifier
American National Standards Institute
22. The rate of transfer of energy.
Transient
XFMR
Flux
Forward resistance
23. A device that converts AC voltage to pulsating DC voltage.
Electric circuit
Q-value
Beta
Rectifier
24. Two dissimilar metals connected at a point - that produce an electrical current whose magnitude is dependent upon the temperature at the junction point.
Series Circuit
VHF
Threshold Response
Thermocouple
25. FM; ~LINK~
Factory Mutual
Thermistor
Weber
Delta
26. 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.
I
Cycle
Circuit
Millivolt
27. In a temperature controller it is the output form that provides a current proportional to the amount of control that is required. Commonly it is the 4 to 20 milliamp current proportioning band that is used in the electronics industry.
Conductance
Current Proportioning
Quantum
N.O.
28. The output that is produced when one or more inputs are present.
OR Logic
Vacuum
Amplifier
Open Circuit
29. Current Consumption. The amount of amps or milliamps needed to maintain operation of a control or device.
System International
Phase
Electromagnet
Supply Current
30. A unit of electric charge. The amount of charge conveyed in one second by one ampere.
Open Circuit
Occupational Safety & Health Administration
Coulomb
Rectifier
31. The amount of energy released in a nuclear reaction. It is expressed in atomic mass units - or in million electron volts (MEV).
Response Time
Q-value
Conductor
Watt-hour
32. 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.
Conduction
Resistance
Magnetic Flux
Transducer
33. IEEE;
Institute of Electrical and Electronics Engineers
Microamp
Cycle
Y
34. A silicone semiconductor that maintains a fixed voltage in a circuit.
Millimeter
Conduction
Joule
Zener Diode
35. Inspection - analysis and action required to ensure quality of output.
Mean Temperature
Operating Temperature
UHF
Quality Control
36. A sensor or switch with the ability to detect it's relationship to a metal target without making physical contact.
Microvolt
Proximity Sensor
Conduit
Grounding Conductor
37. 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
Kilovolt
Ground
Working Standard
Relay
38. A material used to conduct electricity or heat.
Flux
Conductor
Supply Voltage
Gain
39. ISA;
Instrument Society of America
Transducer
I
Milliamp
40. SI; The standard metric system of units.
System International
Electrochemistry
Thermocouple
International Electrotechnical Commission
41. A unit of electrical current named after French physicist Andr
International Electrotechnical Commission
OR Logic
Ampere
Ohmeter
42. 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.
Root Mean Square
Farad
Rectifier
Actuator
43. Non-conducting material used to isolate and/or insulate energized electrical components.
Electrolyte
Millivolt
Dilectric
Thermistor
44. Symbol used to denote transformer.
Maximum Load Current
XFMR
Rheostat
International Electrotechnical Commission
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.
Manual Reset Switch
Cathode
BTU
Quartz
46. A fluctuation in the intensity of a steady current.
Instrument Society of America
Ripple
Gain
Amp
47. NFPA;
Filament
Micron
National Fire Protection Association
Pulse
48. The behavior of charged particles and the steady motion of charge in magnetic and electric fields.
Lag
Transistor
Proximity Sensor
Electrokinetics
49. The time it takes for a controller to complete one on/off cycle.
Amplifier
RFI
Latching logic
Cycle Time
50. A device incorporating semiconductor material and suitable contacts capable of performing electrical functions (such as voltage - current or power amplification) with low power requirements.
Grounded
Electricity
Transistor
Conduction
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