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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. ANSI;
American National Standards Institute
Relay
Vector
Field cell
2. 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.
Capacitor
Field cell
N.O.
Conduit
3. The part of a circuit that supplies power to the entire circuit or part of the circuit. Usually a separate unit that supplies power to a specific part of the circuit in a system.
International Organization for Standardization
Light Emitting Diode
Power Supply
Supply Current
4. ISA;
Phase
Beta
AWG
Instrument Society of America
5. (DC); Electrical current that flows consistently in one direction only.
Field-Effect Transistor (FET)
Phase
Grounding Conductor
Direct Current
6. Ultra High Frequency
UHF
VF
Forward resistance
Field-Effect Transistor (FET)
7. The power of one watt operating for one hour - and equal to 3 -600 joules.
Watt-hour
RTD
Electrolyte
Microamp
8. An electrical circuit that is not 'made'. Contacts - switches or similar devices are open and preventing the floe of current.
Process Meter
Open Circuit
On/Off Controller
Isothermal
9. A circuit element or components that allows signals of certain frequencies to pass and blocks signals of other frequencies.
Filter
Interface
Quasiparticle
Cycle Time
10. Normally Open.
N.O.
RTD
Efficiency
Load
11. Symbol used for wye configuration for three phase electrical connections.
Y
Triac
Anode
Milliamp
12. A process that is kept at a constant temperature.
Isothermal
Transient Protection
Zener Diode
Forward resistance
13. An electrical circuit that increases the power - voltage or current of an applied signal.
Amplifier
Efficiency
Filter
Power Supply
14. 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.
Electricity
Electric circuit
National Electrical Manufacturers Association
Mean Temperature
15. The amount of heat needed to convert one pound of water to one pound of steam. Latent heat is expressed in BTU per pound.
Grounded Conductor
Kilowatt
Rheostat
Latent heat
16. A temperature scale. Also known as centigrade. Sea level water will freeze at 0
Velocity
Conduction
Celsius
Milliamp
17. 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.
Zener Effect
XFMR
Plasma
CMV
18. The amount of energy released in a nuclear reaction. It is expressed in atomic mass units - or in million electron volts (MEV).
VF
Q-value
VOM
International Brotherhood of Electrical Workers
19. The adjustment of a display that results are zero on the display corresponding to a non-zero signal.
Zero Adjustment
Electric circuit
Manual Reset Switch
Zener Effect
20. 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.
Series Circuit
Pulse
Thermistor
Weber
21. EPA; ~LINK~
Environmental Protection Agency
Grounding Conductor
BTU
Manual Reset Switch
22. NFPA;
Forward resistance
International Brotherhood of Electrical Workers
Transient
National Fire Protection Association
23. A controller whose action is either fully on or off.
Electroduct
Rectifier
On/Off Controller
Filament
24. A region of space that surrounds a moving electrical charge or a magnetic pole - in which the electrical charge or magnetic pole experiences a force that is above the electrostatic ones associated with particles at rest.
Magnetic Field
Underwriters Laboratories
Ingress Protection Ratings
Electricity
25. The time it takes for a controller to complete one on/off cycle.
Cycle Time
Working Standard
Response Time
Transistor
26. Mm; One thousandth of a meter.
Phase
Underwriters Laboratories
International Organization for Standardization
Millimeter
27. The measure of the ability of a material or substance to carry electrical current.
Conductance
Electromagnet
Proximity Switch
UHF
28. Symbol for Mega - one million.
XMTR
Lag
M
Ingress Protection Ratings
29. The time based relationship between a reference and a periodic function.
Quartz
Phase
Bridge Rectifier
Hard Wired
30. 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
Millivolt
Electroduct
National Electrical Code
Chatter
31. A solid-state switching device used in switching AC wave forms.
Transistor
Triac
National Electrical Code
Velocity
32. 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.
Magnetic Flux
AWG
National Electrical Manufacturers Association
Volt
33. Symbol used to denote transformer.
CMV
Root Mean Square
Grounded
XFMR
34. CSA ~LINK~
Field-Effect Transistor (FET)
Cycle
Canadian Standards Administration
Millimeter
35. MA; One thousandth of an amp.
Filament
Kilowatt Hour
Milliamp
Quartziodine Lamp
36. '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.
Ampere
Manual Reset Switch
Factory Mutual
BTU
37. A hypothetical basic subatomic nuclear particle believed to be the basic component of protons - neutrons - etc.
Frequency
Rheostat
Alternating Current
Quark
38. Protective circuitry to guard against spikes that might be induced on the supply line.
Capacitor
Quality Control
Rheostat
Transient Protection
39. Magnetically - opposite poles - north and south. In electricity - oppositely charged poles - positive and negative.
Process Meter
Flux
Efficiency
Polarity
40. The quality of having the ability to emit light when struck by electrons or another form of radiation.
Fluorescent
Mil
Millivolt
National Fire Protection Association
41. One of the very small discrete packets into which many forms of energy are subdivided.
Quantum
Filament
Modulated Light Source Control
X ray
42. A silicone semiconductor that maintains a fixed voltage in a circuit.
Beta
Actuator
I
Zener Diode
43. Kw; One thousand watts.
Operating Temperature
Dilectric
Micron
Kilowatt
44. The energy delivered by a circuit or device. The electrical signal produced by the input to the transducer.
Time Delay Before Availability
Phase Proportioning
Output
Polarity
45. Very High Frequency.
Q-value
VHF
VOM
Environmental Protection Agency
46. Pounds per square inch gage. Pressure in relationship to the ambient air pressure>
PSIG
Break
Filament
Conductor
47. The maximum temperature at which a device can be safely operated.
XFMR
Current
Maximum Operating Temperature
Instrument Society of America
48. 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.
Cycle Time
Direct Current
Millivolt
Momentary switch
49. When there is current through a semiconductor p-n junction it is the resistance of a forward-biased junction.
Lag
Isothermal
Bridge Rectifier
Forward resistance
50. 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.
Electric circuit
Vector
XFMR
Gain