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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. The rate of transfer of energy.
Open Circuit
Flux
Alternating Current
Microvolt
2. The act of the opening of an electrical circuit.
Electroduct
Break
Diode
AWG
3. A circuit element or components that allows signals of certain frequencies to pass and blocks signals of other frequencies.
Filter
Current Proportioning
Quartz
Electroduct
4. 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
National Electrical Code
Quantum Electronics
Quap
On/Off Controller
5. IEEE;
XMTR
Institute of Electrical and Electronics Engineers
Kilowatt
Series Circuit
6. UL; ~LINK~
Electromagnetic field
Underwriters Laboratories
Micron
PSIG
7. Pressure that is less than atmospheric pressure.
Vacuum
Quality Control
Magnetic Blow-out Switch
Efficiency
8. Ultra High Frequency
Efficiency
UHF
Power Supply
Polarity
9. A variable resistor.
Microamp
Rheostat
Electroduct
Transient
10. 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.
National Electrical Manufacturers Association
Polarity
Quasiparticle
Electricity
11. The unit of power. One watt equals one joule per second - 1/746th horsepower.
Watt
Maximum Load Current
Quartz
Momentary switch
12. ISO;
Transistor
International Organization for Standardization
Supply Current
I
13. 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.
Gain
Watt
Latent heat
Kilowatt
14. The magnitude and time phase of a quantity - represented by a plotted line.
American National Standards Institute
Vector
Interface
Plasma
15. Protective circuitry to guard against spikes that might be induced on the supply line.
Vector
XFMR
Transient Protection
Vacuum
16. A temperature scale. Also known as centigrade. Sea level water will freeze at 0
Interface
Celsius
Phase Proportioning
Working Standard
17. A device used to store electrical energy in an electrostatic field until discharge.
Capacitor
Supply Current
Field-Effect Transistor (FET)
Leakage current
18. 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
Alternating Current
Relay
Conduit
Frequency
19. The amount of heat needed to convert one pound of water to one pound of steam. Latent heat is expressed in BTU per pound.
Transducer
Latent heat
Millimeter
Response Time
20. One thousandth of an inch.
Electromagnet
Latching logic
Mil
Celsius
21. A small current leaking from an output device in the off state caused by semiconductor characteristics.
Volt
National Electrical Code
Ingress Protection Ratings
Leakage current
22. A silicone semiconductor that maintains a fixed voltage in a circuit.
Grounded
Actuator
Zener Diode
M
23. The standard unit of magnetic flux.
Leakage current
Weber
Anode
Manual Reset Switch
24. (DC); Electrical current that flows consistently in one direction only.
RTD
Direct Current
Kilowatt
Latent heat
25. A circuit conductor that is grounded to become part of the electric circuit by design and intent.
Voltmeter
Working Standard
Grounded Conductor
Filter
26. (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'
Isothermal
Amp
Conductor
PSID
27. Kw; One thousand watts.
System International
Kilowatt
Quality Control
Phase Proportioning
28. A device having two terminals and has a low resistance to electrical current in one direction and a high resistance in the other direction.
Diode
X ray
Grounded Conductor
Joule
29. A device incorporating semiconductor material and suitable contacts capable of performing electrical functions (such as voltage - current or power amplification) with low power requirements.
Transistor
Field-Effect Transistor (FET)
Microamp
Vector
30. A fluctuation in the intensity of a steady current.
CMV
On/Off Controller
Ripple
N.C.
31. Kwh; One thousand watt-hours.
Voltage Drop
Mean Temperature
Kilowatt Hour
Phase
32. The speed or time rate of change of displacement.
Maximum Power Rating
Quartz
Velocity
International Organization for Standardization
33. Intensity. The commonly used symbol used to represent Amperes when used in formulas. I = Intensity = Current = Amps = Amperes.
Quartz
I
Field-Effect Transistor (FET)
Flux
34. See; 'Maximum Power Rating'.
Millivolt
Potentiometer
Interface
Maximum Load Current
35. Kva; One thousand volt amps.
Electricity
Farad
PID
Kilovolt amperes
36. 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.
Bridge Rectifier
RFI
Infrared
Pulse
37. One millionth of a meter.
Micron
Direct Current
Watt
M
38. Output power divided by input power - (work performed in ratio to energy used to produce it).
Efficiency
Electrochemistry
Bridge Rectifier
Conductance
39. Volt-ohm Meter.
Micron
VOM
Proximity Switch
Pulse
40. 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.
Plasma
International Organization for Standardization
Kilovolt
RFI
41. 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.
Millimeter
Vector
Maximum Power Rating
Bridge Rectifier
42. A form of control where the power supplied to a process is controlled by limiting the phase angle of the line voltage.
Dilectric
Quark
Conduit
Phase Proportioning
43. 'Common Mode Voltage.' The voltage which is tolerable between signal and ground.
CMV
Ampere
VF
OR Logic
44. '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.
Ohm
BTU
Institute of Electrical and Electronics Engineers
Manual Reset Switch
45. A unit of energy in solid-state physics with mass and momentum but that does not exist as a free particle.
Quartz
Quasiparticle
System International
Latent heat
46. 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
Ohm
Rheostat
Load
Current Proportioning
47. Symbol used to denote transmitter.
Factory Mutual
Voltage Drop
XMTR
Delta
48. The amount of energy released in a nuclear reaction. It is expressed in atomic mass units - or in million electron volts (MEV).
Weber
Field cell
Q-value
Cathode
49. That part of a circuit which is physically interconnected.
Kilovolt
Hard Wired
PSID
International Organization for Standardization
50. The interaction of magnetism and electrical current.
Electroduct
Thermocouple
Gain
Electrodynamic