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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. A device incorporating semiconductor material and suitable contacts capable of performing electrical functions (such as voltage - current or power amplification) with low power requirements.
Amplifier
Zener Effect
Bridge Rectifier
Transistor
2. A temperature scale. Also known as centigrade. Sea level water will freeze at 0
Transistor
Celsius
OR Logic
Capacitor
3. A tube - pipe or trough that carries and protects electric wiring.
Conduit
Alternating Current
Underwriters Laboratories
Thermocouple
4. Electrical energy produced by the action of heat.
Millivolt
Magnetic Field
Thermoelectricity
Open Circuit
5. NFPA;
National Fire Protection Association
Amp
Grounded
PID
6. The element inside a vacuum tube - incandescent lamp or other similar device.
Maximum Load Current
Filament
BTU
Latent heat
7. The time based relationship between a reference and a periodic function.
Millivolt
Phase
Plasma
Mueller Bridge
8. Symbol used to denote transmitter.
XMTR
Electromagnet
Amp
Amplifier
9. A sudden and unwanted increase or decrease of supply voltage or current.
Transient
Current
Voltage Drop
Grounded Conductor
10. Kw; One thousand watts.
Forward resistance
Rectifier
Environmental Protection Agency
Kilowatt
11. Kwh; One thousand watt-hours.
Electromagnetic field
XFMR
Current
Kilowatt Hour
12. The average temperature of a process.
Institute of Electrical and Electronics Engineers
Time Delay Before Availability
Transient
Mean Temperature
13. A negative (-) electrode. The point of entry of electrons into a device from an external circuit. The negative electrode of a semiconductor diode.
Rectifier
Cathode
Electricity
Capacitor
14. The method by which two devices or systems are connected and interact with each other.
Electrokinetics
PSIG
Thyristor
Interface
15. The interaction of magnetism and electrical current.
Momentary switch
Electric circuit
Forward resistance
Electrodynamic
16. CSA ~LINK~
Canadian Standards Administration
International Electrotechnical Commission
Transient Protection
Polarity
17. Pounds per square inch absolute. Pressure commonly in reference to vacuum.
Hazardous Location
PSIA
Zener Effect
Lag
18. Applying molecular physics to electronics.
Zener Effect
Supply Current
Charge
Quantum Electronics
19. 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.
Leakage current
Manual Reset Switch
Infrared
CMV
20. Symbol used to denote transformer.
Q-value
Electricity
XFMR
Transducer
21. A high-intensity incandescent lamp with a quartz bulb containing an inert gas of iodine or bromine vapor.
PSID
Cycle
Circuit
Quartziodine Lamp
22. The behavior of charged particles and the steady motion of charge in magnetic and electric fields.
VF
Proximity Switch
Power Supply
Electrokinetics
23. (DC); Electrical current that flows consistently in one direction only.
Weber
Power Dissipation
Direct Current
Quasiparticle
24. Pressure that is less than atmospheric pressure.
Vacuum
Isothermal
Charge
Quark
25. The rate of transfer of energy.
Field cell
Triac
Polarity
Flux
26. Chemical changes and energy produced by electric currents.
PSID
Ground
Vector
Electrochemistry
27. The time delay between the output signal and the response time of the receiver of the signal.
Alternating Current
Cycle
Forward resistance
Lag
28. IEC;
Electricity
International Electrotechnical Commission
Chatter
Zener Diode
29. Pounds per square inch gage. Pressure in relationship to the ambient air pressure>
Thermoelectricity
PSIG
Break
Maximum Operating Temperature
30. 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.
Alternating Current
Efficiency
Pulse
System International
31. See; 'Maximum Power Rating'.
Latent heat
VF
Maximum Load Current
Chatter
32. FM; ~LINK~
National Electrical Manufacturers Association
Forward resistance
Factory Mutual
Cathode
33. 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.
Ohmeter
Zero Adjustment
X ray
Bridge Rectifier
34. When there is current through a semiconductor p-n junction it is the resistance of a forward-biased junction.
Conductance
PSIA
Forward resistance
Rectifier
35. A coil of wire wound about a magnetic material - such as iron - that produces a magnetic field when current flows through the wire.
Phase Proportioning
System International
Proximity Switch
Electromagnet
36. The opposition to electrical flow.
Electrokinetics
Impedance
Triac
Beta
37. See; 'Proximity Sensor'.
Proximity Switch
Interface
Magnetic Flux
VOM
38. An area in which combustible or flammable mixtures are or could be present.
Hazardous Location
Make
Voltage Drop
Conduction
39. (AC); Electrical current that changes (or alternates) in magnitude and direction of the current at regular intervals.
Alternating Current
Latent heat
Maximum Operating Temperature
Vacuum
40. Current Consumption. The amount of amps or milliamps needed to maintain operation of a control or device.
National Electrical Manufacturers Association
Circuit
Supply Current
Mil
41. Very High Frequency.
National Fire Protection Association
International Electrotechnical Commission
Mean Temperature
VHF
42. A variable resistor.
Voltmeter
Rheostat
Volt
Hard Wired
43. One of the very small discrete packets into which many forms of energy are subdivided.
Grounded Conductor
Voltage Drop
Transient
Quantum
44. LED; A solid state light source component that emits light or invisible infrared radiation.
Supply Voltage
Light Emitting Diode
Mueller Bridge
Factory Mutual
45. MA; One thousandth of an amp.
Grounded Conductor
Kilovolt
Milliamp
Kilovolt amperes
46. 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
Canadian Standards Administration
Diode
Zener Effect
47. A three terminal semiconductor device. In a 'FET' the current is from source to drain because a conducting channel is formed by a voltage field between the gate and the source.
Quark
Field-Effect Transistor (FET)
Proximity Sensor
Process Meter
48. An anode (+) or cathode (-) conductor on a device through which an electric current passes.
Output
Farad
Electrode
Electric circuit
49. A unit of electric charge. The amount of charge conveyed in one second by one ampere.
Microamp
Voltmeter
Coulomb
Millimeter
50. A controller whose action is either fully on or off.
Magnetic Blow-out Switch
On/Off Controller
X ray
Leakage current