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Test your basic knowledge |
Electrical Components
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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 standard that is used to make comparison measurements or calibrations.
VOM
Working Standard
PSIA
Absolute Zero
2. A variable resistor.
Electric circuit
Rheostat
CMV
Electromagnet
3. Radio Frequency Interference.
Charge
Anode
RFI
Phase Proportioning
4. CSA ~LINK~
Resistance
Latent heat
Canadian Standards Administration
VF
5. The delayed period of time when outputs are turned off when power is initially applied.
VOM
Time Delay Before Availability
Kilovolt
XFMR
6. 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.
Forward Voltage
Pulse
Institute of Electrical and Electronics Engineers
On/Off Controller
7. Pounds per square inch gage. Pressure in relationship to the ambient air pressure>
Coulomb
Transient
Rheostat
PSIG
8. 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.
Intrinsically safe
Plasma
Cycle
Electric circuit
9. 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(-).
Cycle Time
Quartziodine Lamp
Charge
American National Standards Institute
10. An arrangement of any of various conductors through which electric current can flow from a supply current.
On/Off Controller
Kilovolt amperes
Thyristor
Electric circuit
11. A fluctuation in the intensity of a steady current.
Ripple
Delta
Rheostat
Transistor
12. Pounds per square inch differential. The difference in pressure between two points.
Cycle
PSID
Vector
Conduction
13. NEC: A set of regulations pertaining to electrical installation and design in the interest of the protection of life and property. The NEC is adopted by NFPA and approved by ANSI. It is the preferred standard of guidelines used by most electrical reg
Potentiometer
National Electrical Code
Light Emitting Diode
Quartz
14. 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
Factory Mutual
Quap
Zener Effect
15. Inspection - analysis and action required to ensure quality of output.
Quality Control
Microvolt
Hard Wired
Grounded
16. A panel meter with zero and span adjustments - commonly scaled for signals such as 1-5 volts - 4-20mA - etc.
Electromagnetic field
Quartz
Diode
Process Meter
17. When there is current through a semiconductor p-n junction it is the resistance of a forward-biased junction.
Forward resistance
Canadian Standards Administration
International Organization for Standardization
Latent heat
18. A hypothetical nuclear of a quark plus an antiproton.
Coulomb
Microvolt
Quap
Conduction
19. The amount of power that is consumed and converted to heat.
National Fire Protection Association
Microvolt
Power Dissipation
Momentary switch
20. Variable Frequency.
Weber
Thermistor
On/Off Controller
VF
21. LED; A solid state light source component that emits light or invisible infrared radiation.
Light Emitting Diode
Thermistor
Magnetic Flux
Electromagnetic field
22. A full path of electrical current from a voltage source that passes completely from one terminal of the voltage source to another.
Circuit
International Brotherhood of Electrical Workers
PSID
Current Proportioning
23. That part of a circuit which is physically interconnected.
Absolute Zero
Zero Adjustment
Ohm
Hard Wired
24. NFPA;
Electrolysis
National Fire Protection Association
Forward Voltage
Quark
25. A meter used to measure electrical resistance in units of ohms.
Process Meter
Power Supply
Ohmeter
BTU
26. Kva; One thousand volt amps.
Working Standard
Underwriters Laboratories
Magnetic Field
Kilovolt amperes
27. 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.
Modulated Light Source Control
Delta
Watt
Root Mean Square
28. The behavior of charged particles and the steady motion of charge in magnetic and electric fields.
Ripple
Isothermal
Flux
Electrokinetics
29. Symbol used to denote transformer.
XFMR
Electrochemistry
Chatter
Joule
30. The maximum temperature at which a device can be safely operated.
National Electrical Code
Make
Maximum Operating Temperature
Plasma
31. A device having two terminals and has a low resistance to electrical current in one direction and a high resistance in the other direction.
RFI
Diode
Thermocouple
Delta
32. IEC;
Plasma
Current Proportioning
International Electrotechnical Commission
PSIA
33. An electrical resistor composed of semiconductor material - whose resistance is a known rapidly varying function of temperature.
Modulated Light Source Control
Diode
Thermistor
Mean Temperature
34. An electrically conductive fused salt or a solution where the charge is carried by ionic movement.
Flux
Mil
Electrolyte
Conduction
35. ISA;
Occupational Safety & Health Administration
Instrument Society of America
Transient
Farad
36. A three terminal semiconductor device. In a 'FET' the current is from source to drain because a conducting channel is formed by a voltage field between the gate and the source.
Celsius
Process Meter
Field-Effect Transistor (FET)
Load
37. 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.
Transient
National Electrical Code
Bridge Rectifier
Anode
38. One of the very small discrete packets into which many forms of energy are subdivided.
Quantum
Quark
Underwriters Laboratories
Delta
39. A fundamental negatively (-) charged atomic particle that rotates around a positively (+) charged nucleus of the atom.
Electron
Light Emitting Diode
Transducer
Break
40. ISO;
International Organization for Standardization
Ohm
Mil
BTU
41. The quality of having the ability to emit light when struck by electrons or another form of radiation.
International Electrotechnical Commission
Latent heat
Fluorescent
Q-value
42. In a three phase connection all three phases are connected in series thus forming a closed circuit.
Velocity
Kilovolt amperes
Delta
Conduction
43. 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.
Field cell
Interface
Absolute Zero
National Electrical Code
44. 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.
Modulated Light Source Control
Watt-hour
Mueller Bridge
Proximity Sensor
45. One millionth of an amp.
PID
I
Microamp
Quartziodine Lamp
46. 'Common Mode Voltage.' The voltage which is tolerable between signal and ground.
Electrodynamic
Manual Reset Switch
CMV
Modulated Light Source Control
47. IBEW;
Grounding Conductor
International Brotherhood of Electrical Workers
Proximity Sensor
Bridge Rectifier
48. The modification of a signal that causes the output to remain energized until it is released by intent.
Bridge Rectifier
Latching logic
Quark
Transient Protection
49. Chemical changes and energy produced by electric currents.
Resistance
Electrochemistry
Ampere
BTU
50. A variable resistor.
Conduit
Potentiometer
Operating Temperature
Maximum Operating Temperature
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