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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. NEMA;
Weber
National Electrical Manufacturers Association
Factory Mutual
Fluorescent
2. The behavior of charged particles and the steady motion of charge in magnetic and electric fields.
Transient Protection
Coulomb
Electrokinetics
RFI
3. The voltage that is applied across a semiconductor junction to permit forward current through that junction and the device. Forward voltage is also known as 'bias.'
Microamp
Electrodynamic
Forward Voltage
Cathode
4. ANSI;
American National Standards Institute
N.C.
Beta
Watt
5. 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
Ohm
On/Off Controller
Plasma
Ground
6. An electrical resistor composed of semiconductor material - whose resistance is a known rapidly varying function of temperature.
Canadian Standards Administration
Direct Current
Interface
Thermistor
7. Symbol used to denote transmitter.
Bridge Rectifier
XMTR
Hard Wired
Environmental Protection Agency
8. IEC;
Cycle Time
International Electrotechnical Commission
Modulated Light Source Control
Gain
9. Pounds per square inch gage. Pressure in relationship to the ambient air pressure>
PSIG
Diode
Momentary switch
Response Time
10. One thousandth of an inch.
Mil
Transducer
Rectifier
Grounded Conductor
11. A unit of electric charge. The amount of charge conveyed in one second by one ampere.
Coulomb
Zener Effect
Anode
XFMR
12. Pounds per square inch differential. The difference in pressure between two points.
PSID
Interface
UHF
Process Meter
13. The maximum temperature at which a device can be safely operated.
Maximum Operating Temperature
Forward Voltage
M
Mil
14. The measure of the ability of a material or substance to carry electrical current.
Phase
Conductance
Load
Kilovolt
15. Normally Closed.
Thermocouple
Open Circuit
N.C.
Grounded Conductor
16. A connected path to earth or to a conductive body that has a reference potential to earth.
Grounded
System International
Quantum
Coulomb
17. Pounds per square inch absolute. Pressure commonly in reference to vacuum.
Conductance
Zero Adjustment
PSIA
VF
18. 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.
Supply Voltage
Microvolt
Pulse
Cathode
19. The output that is produced when one or more inputs are present.
Capacitor
OR Logic
Kilovolt
Quality Control
20. A sudden and unwanted increase or decrease of supply voltage or current.
Transient
BTU
Zener Diode
Field-Effect Transistor (FET)
21. The amount of power that is consumed and converted to heat.
Leakage current
Conductance
Electromagnet
Power Dissipation
22. The opposition to electrical flow.
Grounding Conductor
Kilovolt
Impedance
Transistor
23. The pronounced curvature in reverse voltage current that is characteristic of a diode.
Zener Effect
Ground
VHF
Microamp
24. A hypothetical nuclear of a quark plus an antiproton.
Break
Magnetic Flux
Quap
PSIA
25. One millionth of a meter.
Micron
VHF
Ohmeter
Y
26. A device used to store electrical energy in an electrostatic field until discharge.
Supply Voltage
Capacitor
Electric circuit
M
27. Also known as Hertz - it is the number of complete cycles of periodic waveform that occur during a time period of one second.
Lag
Magnetic Field
Impedance
Frequency
28. Applying molecular physics to electronics.
Quantum Electronics
Charge
Weber
UHF
29. The current that is gained by a transistor when it is connected in a common emitter circuit.
Beta
Quartziodine Lamp
Electrodynamic
Flux
30. Normally Open.
Output
Magnetic Blow-out Switch
N.O.
VF
31. -459.67
Thermocouple
Absolute Zero
Leakage current
Light Emitting Diode
32. Volt-ohm Meter.
RTD
Proximity Sensor
Maximum Load Current
VOM
33. ISO;
Kilovolt
PID
Transient Protection
International Organization for Standardization
34. The modification of a signal that causes the output to remain energized until it is released by intent.
Zero Adjustment
Latching logic
Conduit
Electromagnet
35. Variable Frequency.
VF
Coulomb
Proximity Switch
Forward Voltage
36. One of the very small discrete packets into which many forms of energy are subdivided.
Conductance
Kilowatt
Quantum
Frequency
37. The delayed period of time when outputs are turned off when power is initially applied.
Response Time
Time Delay Before Availability
Kilovolt
Conductor
38. SI; The standard metric system of units.
Circuit
Mil
System International
Dilectric
39. 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
Output
Ampere
Forward resistance
Ohm
40. A hypothetical basic subatomic nuclear particle believed to be the basic component of protons - neutrons - etc.
Quark
Millimeter
Ohmeter
Mil
41. The interaction of magnetism and electrical current.
Electricity
Latent heat
Anode
Electrodynamic
42. A coil of wire wound about a magnetic material - such as iron - that produces a magnetic field when current flows through the wire.
M
Electromagnet
Thyristor
Electron
43. 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.
RTD
BTU
Volt
Cycle Time
44. 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.
VF
Current Proportioning
Conductor
Rheostat
45. Electric and magnetic force field that surrounds a moving electric charge.
International Organization for Standardization
Electromagnetic field
Electrochemistry
XFMR
46. 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.
Anode
Momentary switch
Occupational Safety & Health Administration
Electricity
47. The time it takes for a controller to complete one on/off cycle.
Mean Temperature
Cycle Time
Working Standard
AWG
48. MLS; A photoelectric control that operates on pulsed infrared radiation at a specific frequency - and responds only to that frequency of pulse. MLS is used frequently in areas where ambient light may cause problems with other types of sensors.
Thermocouple
Modulated Light Source Control
Potentiometer
Ground
49. A positive (+) electrode. The point where electrons exit from a device to the external electric circuit.
Anode
Triac
Output
Pulse
50. FM; ~LINK~
Factory Mutual
Electromagnetic field
Load
Forward Voltage