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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. IEEE;
Thermoelectricity
Actuator
Institute of Electrical and Electronics Engineers
Quartz
2. The time it takes for a controller to complete one on/off cycle.
Cycle Time
Institute of Electrical and Electronics Engineers
Electrolyte
Vector
3. Two dissimilar metals connected at a point - that produce an electrical current whose magnitude is dependent upon the temperature at the junction point.
National Electrical Manufacturers Association
Working Standard
Thermocouple
Diode
4. An electrically conductive fused salt or a solution where the charge is carried by ionic movement.
PSIA
Electromagnetic field
Factory Mutual
Electrolyte
5. 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.
Time Delay Before Availability
Bridge Rectifier
Direct Current
PSID
6. 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
Intrinsically safe
Time Delay Before Availability
Potentiometer
Beta
7. A reference point at zero potential with respect to the earth. In an electronic circuit it is the common return path for electric current. A conducting connection between the earth and an electrical circuit or electrical equipment. Also - the negativ
Ground
Ripple
BTU
Millivolt
8. The adjustment of a display that results are zero on the display corresponding to a non-zero signal.
Working Standard
Volt
SCR
Zero Adjustment
9. A unit of energy in solid-state physics with mass and momentum but that does not exist as a free particle.
Quartz
Milliamp
Kilowatt Hour
Quasiparticle
10. A circuit which may have one or many resistors and/or other various devices connected in a series so that the current has only one path to follow.
Series Circuit
Thermistor
Electrolyte
Root Mean Square
11. A switch in a controller that manually resets after exceeding the controllers limit.
National Fire Protection Association
Thermoelectricity
Impedance
Manual Reset Switch
12. A unit of electrical current named after French physicist Andr
Electromagnetic field
Zener Diode
Ampere
Grounding Conductor
13. 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
Factory Mutual
Supply Voltage
Ohm
XFMR
14. Pounds per square inch absolute. Pressure commonly in reference to vacuum.
Beta
PSIA
AWG
Hard Wired
15. A circuit conductor that is grounded to become part of the electric circuit by design and intent.
OR Logic
Millivolt
Grounded Conductor
Response Time
16. -459.67
UHF
Conductance
Ohm
Absolute Zero
17. An interconnected arrangement of parts for carrying high-voltage electricity.
Electricity
Electroduct
Microamp
Alternating Current
18. A temperature scale. Also known as centigrade. Sea level water will freeze at 0
Watt
Filter
Ohm
Celsius
19. An arrangement of any of various conductors through which electric current can flow from a supply current.
Break
Velocity
Millivolt
Electric circuit
20. European environmental ratings. Similar to NEMA ratings in the USA. IP;*site has NEMA comparisons ~LINK~
RTD
Ingress Protection Ratings
Magnetic Blow-out Switch
N.O.
21. The time based relationship between a reference and a periodic function.
Phase
Alternating Current
National Electrical Manufacturers Association
Intrinsically safe
22. Pounds per square inch differential. The difference in pressure between two points.
PSID
AWG
Cycle Time
Potentiometer
23. A meter used to measure electrical resistance in units of ohms.
Canadian Standards Administration
Volt
Ohmeter
Fluorescent
24. Very High Frequency.
Quark
Interface
Magnetic Blow-out Switch
VHF
25. The amount of power that is consumed and converted to heat.
International Electrotechnical Commission
Power Dissipation
Anode
Quasiparticle
26. Electric current passing through an electrolyte which produces chemical changes in it.
Electrolysis
Potentiometer
Mueller Bridge
Diode
27. The output that is produced when one or more inputs are present.
Grounded
OR Logic
Celsius
Current
28. IEC;
Break
International Electrotechnical Commission
Chatter
Momentary switch
29. The rate at which electricity flows - measured in amperes - 1 ampere = 1 coulomb per second.
Current
Electroduct
Coulomb
International Brotherhood of Electrical Workers
30. The form of radiation used to make non-contact temperature measurements. In the electromagnetic spectrum it is the area beyond red light from 760 nanometers to 1000 microns.
Infrared
SCR
Proximity Sensor
Vector
31. 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
Electric circuit
Micron
Hazardous Location
32. The speed or time rate of change of displacement.
Velocity
Bridge Rectifier
Phase Proportioning
Mil
33. A sensor or switch with the ability to detect it's relationship to a metal target without making physical contact.
Proximity Sensor
SCR
Bridge Rectifier
Output
34. A unit of electric charge. The amount of charge conveyed in one second by one ampere.
National Electrical Manufacturers Association
Coulomb
Transient
Zener Effect
35. 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.
Manual Reset Switch
Magnetic Field
PSIA
Diode
36. kV; One thousand volts.
Kilovolt
Factory Mutual
XMTR
Thermistor
37. Symbol used to denote transformer.
VOM
PSID
Light Emitting Diode
XFMR
38. The magnitude and time phase of a quantity - represented by a plotted line.
Vector
Zener Diode
M
Leakage current
39. Applying molecular physics to electronics.
Quantum Electronics
Flux
Manual Reset Switch
Efficiency
40. A circuit element or components that allows signals of certain frequencies to pass and blocks signals of other frequencies.
Filter
Thermocouple
Conductor
Cycle
41. See; 'Maximum Power Rating'.
Flux
Bridge Rectifier
Time Delay Before Availability
Maximum Load Current
42. The rapid on/off cycling of a relay caused by improper signal or adjustment - faulty contacts - or other malfunction.
Ohm
Bridge Rectifier
Current
Chatter
43. The rate of transfer of energy.
Flux
Conduit
Diode
Quantum
44. 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.
Current Proportioning
Modulated Light Source Control
Filter
I
45. That part of a circuit which is physically interconnected.
Power Dissipation
Absolute Zero
Hard Wired
SCR
46. The maximum watts that a device can safely handle.
Electrode
Maximum Power Rating
Institute of Electrical and Electronics Engineers
National Electrical Manufacturers Association
47. The unit for capacitance. A capacitor that stored one coulomb of charge with one volt across it will have a value of one farad.
Triac
BTU
Kilovolt
Farad
48. Intensity. The commonly used symbol used to represent Amperes when used in formulas. I = Intensity = Current = Amps = Amperes.
Power Supply
I
BTU
Electricity
49. When there is current through a semiconductor p-n junction it is the resistance of a forward-biased junction.
Celsius
Conduction
Thermocouple
Forward resistance
50. A full path of electrical current from a voltage source that passes completely from one terminal of the voltage source to another.
Joule
Circuit
International Electrotechnical Commission
Electrode