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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. EPA; ~LINK~
Weber
Environmental Protection Agency
Electrodynamic
Break
2. 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(-).
Light Emitting Diode
Latent heat
Charge
RFI
3. An electrically conductive fused salt or a solution where the charge is carried by ionic movement.
Series Circuit
Quantum
Electrode
Electrolyte
4. One of the very small discrete packets into which many forms of energy are subdivided.
Absolute Zero
Circuit
Quantum
SCR
5. UL; ~LINK~
Electric circuit
Working Standard
Underwriters Laboratories
Milliamp
6. The amount of energy released in a nuclear reaction. It is expressed in atomic mass units - or in million electron volts (MEV).
Y
Lag
Q-value
Load
7. A hypothetical basic subatomic nuclear particle believed to be the basic component of protons - neutrons - etc.
Quark
Weber
Light Emitting Diode
Grounded Conductor
8. A unit of electrical current named after French physicist Andr
Electron
Absolute Zero
Ampere
Filter
9. Applying molecular physics to electronics.
Electricity
Quantum Electronics
Mueller Bridge
National Electrical Manufacturers Association
10. A tube - pipe or trough that carries and protects electric wiring.
Transient Protection
Conduit
Institute of Electrical and Electronics Engineers
Charge
11. ISA;
N.O.
Micron
BTU
Instrument Society of America
12. A silicone semiconductor that maintains a fixed voltage in a circuit.
Occupational Safety & Health Administration
Zener Diode
N.C.
VHF
13. A process that is kept at a constant temperature.
PSIG
Isothermal
Kilowatt
Forward Voltage
14. A switch with contacts that are made with actuating force and released when that force is removed.
Momentary switch
Electrolysis
Kilowatt
Break
15. A meter used to measure units of volts.
Y
Vacuum
Voltmeter
VHF
16. The method by which two devices or systems are connected and interact with each other.
Fluorescent
Interface
Light Emitting Diode
Electron
17. A device - instrument or component that will not produce any spark or thermal effects under any conditions that are normal or abnormal that will ignite a specified gas mixture. Electrical and thermal energy limits are at levels incapable of causing i
Beta
Ripple
Intrinsically safe
Flux
18. IEC;
Flux
N.O.
Magnetic Field
International Electrotechnical Commission
19. A fundamental negatively (-) charged atomic particle that rotates around a positively (+) charged nucleus of the atom.
Kilowatt Hour
Direct Current
Process Meter
Electron
20. Variable Frequency.
VF
International Brotherhood of Electrical Workers
M
Modulated Light Source Control
21. Volt-ohm Meter.
Absolute Zero
VOM
Frequency
Transistor
22. The power of one watt operating for one hour - and equal to 3 -600 joules.
Watt-hour
Filter
Actuator
Q-value
23. -459.67
Absolute Zero
Zener Diode
Quartz
International Organization for Standardization
24. The range of voltage needed to maintain operation of a control or device.
Supply Voltage
Supply Current
Diode
Actuator
25. 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.
Interface
Bridge Rectifier
Power Supply
Conduit
26. To close an electrical circuit. To establish an electrical circuit through the closing of a contact - switch or other related device.
Operating Temperature
Transient
Transistor
Make
27. Mm; One thousandth of a meter.
Potentiometer
Millimeter
Absolute Zero
Phase
28. OSHA;
Farad
Break
Occupational Safety & Health Administration
Grounding Conductor
29. 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.
Cycle
Millimeter
XFMR
Magnetic Field
30. 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.
Root Mean Square
Plasma
Response Time
Electrochemistry
31. A variable resistor.
Quantum Electronics
RTD
Vector
Rheostat
32. The amount of power that is consumed and converted to heat.
Kilovolt
Impedance
Power Dissipation
Ampere
33. A solid-state switching device used in switching AC wave forms.
Transistor
Quantum Electronics
Absolute Zero
Triac
34. 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
Latching logic
Grounded Conductor
PSIA
35. The element inside a vacuum tube - incandescent lamp or other similar device.
Direct Current
Filament
Transducer
Flux
36. See; 'Maximum Power Rating'.
Root Mean Square
XFMR
Quartz
Maximum Load Current
37. The rate of transfer of energy.
Flux
Amp
Underwriters Laboratories
Current Proportioning
38. One millionth of an amp.
Thyristor
Fluorescent
Operating Temperature
Microamp
39. A form of control where the power supplied to a process is controlled by limiting the phase angle of the line voltage.
Phase Proportioning
Momentary switch
American National Standards Institute
Time Delay Before Availability
40. A small current leaking from an output device in the off state caused by semiconductor characteristics.
Rheostat
Leakage current
Canadian Standards Administration
Proximity Sensor
41. The average temperature of a process.
Quality Control
Actuator
BTU
Mean Temperature
42. The moving of electricity or heat through a conductor.
Amplifier
N.O.
Farad
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.
Kilovolt
XFMR
Micron
Field cell
44. The time it takes for a controller to complete one on/off cycle.
Supply Current
Latent heat
On/Off Controller
Cycle Time
45. The basic of thermal energy. The work done by the force of one newton acting through a distance of one meter.
OR Logic
Beta
Joule
International Electrotechnical Commission
46. An electromagnetic radiation produced when the inner satellite electrons of heavy atoms have been excited by collision with a stream of fast electrons return to their ground state - giving up the energy previously imparted to them.
Thermistor
X ray
Root Mean Square
Electricity
47. A hypothetical nuclear of a quark plus an antiproton.
Efficiency
Frequency
Quap
Grounding Conductor
48. A panel meter with zero and span adjustments - commonly scaled for signals such as 1-5 volts - 4-20mA - etc.
Quasiparticle
Actuator
Relay
Process Meter
49. An area in which combustible or flammable mixtures are or could be present.
Fluorescent
Relay
Zener Diode
Hazardous Location
50. The range of temperature over which a device may be safely used. The temperature range which the device has been designed to operate.
Proximity Sensor
Operating Temperature
Zener Diode
Charge