SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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 standard unit of magnetic flux.
Polarity
Forward Voltage
Weber
Efficiency
2. 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.
Output
XFMR
Power Supply
System International
3. The amount of heat needed to convert one pound of water to one pound of steam. Latent heat is expressed in BTU per pound.
Latent heat
AWG
Quap
Load
4. A variable resistor.
Diode
Coulomb
XMTR
Potentiometer
5. 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.
Electroduct
Manual Reset Switch
Mil
Current Proportioning
6. 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
Latent heat
Proximity Switch
Isothermal
7. Symbol used to denote transformer.
Ingress Protection Ratings
Instrument Society of America
XFMR
Response Time
8. The maximum watts that a device can safely handle.
Ampere
Maximum Power Rating
Charge
Quantum Electronics
9. Intensity. The commonly used symbol used to represent Amperes when used in formulas. I = Intensity = Current = Amps = Amperes.
I
National Electrical Code
Quasiparticle
Zener Effect
10. EPA; ~LINK~
Capacitor
Environmental Protection Agency
Thyristor
Vector
11. The output that is produced when one or more inputs are present.
Forward Voltage
Phase
OR Logic
Watt-hour
12. UL; ~LINK~
Underwriters Laboratories
Kilovolt amperes
Magnetic Field
Thermistor
13. To close an electrical circuit. To establish an electrical circuit through the closing of a contact - switch or other related device.
Instrument Society of America
Electromagnetic field
Make
Conduit
14. The act of the opening of an electrical circuit.
Quasiparticle
Break
Process Meter
Microvolt
15. Very High Frequency.
Light Emitting Diode
Process Meter
VHF
Supply Current
16. A switching device used in switching high DC loads. It contains a small permanent magnet which deflects arc in order to quench it.
Magnetic Blow-out Switch
Open Circuit
Thermocouple
Underwriters Laboratories
17. The amount of energy released in a nuclear reaction. It is expressed in atomic mass units - or in million electron volts (MEV).
Occupational Safety & Health Administration
Watt
Q-value
Transient Protection
18. FM; ~LINK~
Factory Mutual
OR Logic
Mil
I
19. A form of control where the power supplied to a process is controlled by limiting the phase angle of the line voltage.
Phase Proportioning
Electrolyte
Current
Grounded Conductor
20. SI; The standard metric system of units.
System International
RTD
International Organization for Standardization
Grounded Conductor
21. A device that converts AC voltage to pulsating DC voltage.
Voltage Drop
Rectifier
Electromagnetic field
BTU
22. The opposition to electrical flow.
Impedance
Electrolysis
Micron
Alternating Current
23. LED; A solid state light source component that emits light or invisible infrared radiation.
Working Standard
PSID
Light Emitting Diode
XFMR
24. The adjustment of a display that results are zero on the display corresponding to a non-zero signal.
Response Time
Interface
Zero Adjustment
Thermistor
25. A sensor or switch with the ability to detect it's relationship to a metal target without making physical contact.
Rheostat
Proximity Sensor
XFMR
Zener Effect
26. A positive (+) electrode. The point where electrons exit from a device to the external electric circuit.
Infrared
Anode
Ohm
Magnetic Blow-out Switch
27. Electric current passing through an electrolyte which produces chemical changes in it.
Voltmeter
Electrolysis
Circuit
Electrokinetics
28. NEMA;
Conductor
Quality Control
Light Emitting Diode
National Electrical Manufacturers Association
29. When there is current through a semiconductor p-n junction it is the resistance of a forward-biased junction.
Impedance
Forward resistance
Quasiparticle
Kilowatt Hour
30. The rate of transfer of energy.
Cycle
Break
Flux
Micron
31. MA; One thousandth of an amp.
Current
Milliamp
Absolute Zero
Efficiency
32. Silicone Controlled Rectifier.
Celsius
Cycle
SCR
RFI
33. Applying molecular physics to electronics.
Power Supply
Conductance
Leakage current
Quantum Electronics
34. The electrical demand of a process. Load can be expressed or calculated as amps (current) - ohms (resistance) or watts (power).
Field-Effect Transistor (FET)
Load
Thermocouple
International Electrotechnical Commission
35. 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
Plasma
Intrinsically safe
Quark
Momentary switch
36. Also known as Hertz - it is the number of complete cycles of periodic waveform that occur during a time period of one second.
Amplifier
Frequency
Conductor
Watt
37. An electrically conductive fused salt or a solution where the charge is carried by ionic movement.
Maximum Power Rating
Electrolyte
Interface
Electrodynamic
38. The standard that is used to make comparison measurements or calibrations.
Transducer
Actuator
Working Standard
Hard Wired
39. Electrical energy produced by the action of heat.
Volt
PSIG
Grounded
Thermoelectricity
40. Current Consumption. The amount of amps or milliamps needed to maintain operation of a control or device.
Latching logic
Celsius
Supply Current
Voltage Drop
41. Normally Open.
Rectifier
Electrodynamic
Transducer
N.O.
42. ISA;
Instrument Society of America
Kilowatt Hour
SCR
Watt-hour
43. 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
RFI
Operating Temperature
Actuator
44. European environmental ratings. Similar to NEMA ratings in the USA. IP;*site has NEMA comparisons ~LINK~
Infrared
Ingress Protection Ratings
Transient
Coulomb
45. '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.
Interface
Field-Effect Transistor (FET)
BTU
Load
46. NFPA;
National Fire Protection Association
Efficiency
Field-Effect Transistor (FET)
Resistance
47. Protective circuitry to guard against spikes that might be induced on the supply line.
Quality Control
Load
Magnetic Field
Transient Protection
48. The pronounced curvature in reverse voltage current that is characteristic of a diode.
Zener Effect
Electrochemistry
Transducer
Celsius
49. A tube - pipe or trough that carries and protects electric wiring.
Ampere
Cathode
National Fire Protection Association
Conduit
50. A sudden and unwanted increase or decrease of supply voltage or current.
Plasma
Vector
Transient
PSIA
Sorry!:) No result found.
Can you answer 50 questions in 15 minutes?
Let me suggest you:
Browse all subjects
Browse all tests
Most popular tests
Major Subjects
Tests & Exams
AP
CLEP
DSST
GRE
SAT
GMAT
Certifications
CISSP go to https://www.isc2.org/
PMP
ITIL
RHCE
MCTS
More...
IT Skills
Android Programming
Data Modeling
Objective C Programming
Basic Python Programming
Adobe Illustrator
More...
Business Skills
Advertising Techniques
Business Accounting Basics
Business Strategy
Human Resource Management
Marketing Basics
More...
Soft Skills
Body Language
People Skills
Public Speaking
Persuasion
Job Hunting And Resumes
More...
Vocabulary
GRE Vocab
SAT Vocab
TOEFL Essential Vocab
Basic English Words For All
Global Words You Should Know
Business English
More...
Languages
AP German Vocab
AP Latin Vocab
SAT Subject Test: French
Italian Survival
Norwegian Survival
More...
Engineering
Audio Engineering
Computer Science Engineering
Aerospace Engineering
Chemical Engineering
Structural Engineering
More...
Health Sciences
Basic Nursing Skills
Health Science Language Fundamentals
Veterinary Technology Medical Language
Cardiology
Clinical Surgery
More...
English
Grammar Fundamentals
Literary And Rhetorical Vocab
Elements Of Style Vocab
Introduction To English Major
Complete Advanced Sentences
Literature
Homonyms
More...
Math
Algebra Formulas
Basic Arithmetic: Measurements
Metric Conversions
Geometric Properties
Important Math Facts
Number Sense Vocab
Business Math
More...
Other Major Subjects
Science
Economics
History
Law
Performing-arts
Cooking
Logic & Reasoning
Trivia
Browse all subjects
Browse all tests
Most popular tests