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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 fundamental negatively (-) charged atomic particle that rotates around a positively (+) charged nucleus of the atom.
Quality Control
Electron
On/Off Controller
Field-Effect Transistor (FET)
2. A unit of electric charge. The amount of charge conveyed in one second by one ampere.
Coulomb
Quantum Electronics
Electrodynamic
Process Meter
3. MA; One thousandth of an amp.
Dilectric
Forward resistance
Milliamp
Micron
4. 'American Wire Gauge' system used to determine wire size.
AWG
Kilowatt Hour
Grounded
Conduit
5. MV; One thousandth of a volt. The difference in potential needed to cause a current of one milliampere flow through a resistance of one ohm.
Millivolt
Quark
Electrokinetics
Circuit
6. The amount of energy released in a nuclear reaction. It is expressed in atomic mass units - or in million electron volts (MEV).
Quality Control
Light Emitting Diode
Q-value
Farad
7. A small current leaking from an output device in the off state caused by semiconductor characteristics.
Kilowatt
Light Emitting Diode
Leakage current
Gain
8. A material used to conduct electricity or heat.
Electroduct
Micron
Occupational Safety & Health Administration
Conductor
9. A controller whose action is either fully on or off.
Thermocouple
Factory Mutual
Potentiometer
On/Off Controller
10. The energy delivered by a circuit or device. The electrical signal produced by the input to the transducer.
Hazardous Location
Watt
Frequency
Output
11. A panel meter with zero and span adjustments - commonly scaled for signals such as 1-5 volts - 4-20mA - etc.
Volt
Weber
Process Meter
Anode
12. Variable Frequency.
Milliamp
N.O.
VF
Transducer
13. Intensity. The commonly used symbol used to represent Amperes when used in formulas. I = Intensity = Current = Amps = Amperes.
I
Impedance
BTU
Quartz
14. Kwh; One thousand watt-hours.
Kilowatt Hour
Conductor
Triac
Polarity
15. The maximum watts that a device can safely handle.
Mean Temperature
Plasma
Maximum Power Rating
XFMR
16. A positive (+) electrode. The point where electrons exit from a device to the external electric circuit.
AWG
Field cell
Frequency
Anode
17. To close an electrical circuit. To establish an electrical circuit through the closing of a contact - switch or other related device.
XMTR
Make
Millivolt
Electrolyte
18. EPA; ~LINK~
Grounded
Voltage Drop
Environmental Protection Agency
N.C.
19. A unit of energy in solid-state physics with mass and momentum but that does not exist as a free particle.
Quasiparticle
Mueller Bridge
Amp
Pulse
20. IEEE;
Electrolyte
Efficiency
Amplifier
Institute of Electrical and Electronics Engineers
21. kV; One thousand volts.
Thyristor
Filter
Kilovolt
Current
22. An electrical circuit that increases the power - voltage or current of an applied signal.
Amplifier
VF
Velocity
Vector
23. A form of control where the power supplied to a process is controlled by limiting the phase angle of the line voltage.
Efficiency
Underwriters Laboratories
Phase Proportioning
Electrokinetics
24. (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'
CMV
Amp
VOM
Grounded
25. Very High Frequency.
Magnetic Blow-out Switch
Maximum Load Current
Latching logic
VHF
26. The element inside a vacuum tube - incandescent lamp or other similar device.
Triac
OR Logic
Filament
Microamp
27. 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(-).
Microvolt
Charge
Beta
PSID
28. Symbol used to denote transformer.
VOM
Transient
Factory Mutual
XFMR
29. RMS; AC voltage that equals DC voltage that will do the same amount of work. For an AC sine wave it is 0.707 x peak voltage.
Root Mean Square
OR Logic
Cycle
On/Off Controller
30. One thousandth of an inch.
Mil
Circuit
Ohmeter
Watt-hour
31. The basic of thermal energy. The work done by the force of one newton acting through a distance of one meter.
Open Circuit
Thermoelectricity
Modulated Light Source Control
Joule
32. Symbol for Mega - one million.
M
X ray
Quality Control
Ground
33. The average temperature of a process.
SCR
Mean Temperature
Current
Output
34. The time delay between the output signal and the response time of the receiver of the signal.
Efficiency
Cathode
Lag
Amplifier
35. Symbol used for wye configuration for three phase electrical connections.
Y
Filament
Capacitor
Transient
36. Electrical energy produced by the action of heat.
Bridge Rectifier
Infrared
Thermoelectricity
XMTR
37. The conductor that is used by intent to connect the grounded circuit of an electrical wiring system or equipment to a grounding electrode with reference to earth.
Electron
Grounding Conductor
Alternating Current
Lag
38. A tube - pipe or trough that carries and protects electric wiring.
Fluorescent
Conduit
PID
Hard Wired
39. Pressure that is less than atmospheric pressure.
Alternating Current
Vacuum
Quantum Electronics
Instrument Society of America
40. The electrical demand of a process. Load can be expressed or calculated as amps (current) - ohms (resistance) or watts (power).
Quantum Electronics
Load
Quasiparticle
Voltage Drop
41. Symbol used to denote transmitter.
Power Dissipation
Grounded
Thermistor
XMTR
42. A variable resistor.
Rheostat
Magnetic Blow-out Switch
Transistor
Cycle Time
43. The time based relationship between a reference and a periodic function.
Farad
Quality Control
N.O.
Phase
44. Response to the change in the level of the input signal.
Threshold Response
Alternating Current
Latching logic
Field-Effect Transistor (FET)
45. The rapid on/off cycling of a relay caused by improper signal or adjustment - faulty contacts - or other malfunction.
Chatter
National Electrical Manufacturers Association
XFMR
Amplifier
46. A switching device used in switching high DC loads. It contains a small permanent magnet which deflects arc in order to quench it.
Thermoelectricity
Magnetic Blow-out Switch
Zener Diode
Kilowatt
47. OSHA;
Quality Control
Occupational Safety & Health Administration
Canadian Standards Administration
Transducer
48. See; 'Proximity Sensor'.
Watt
Proximity Switch
Quantum
Current
49. The amount of time it takes for a device to react to an input signal.
International Brotherhood of Electrical Workers
Celsius
Response Time
Threshold Response
50. A form of silicone dioxide. Commonly used in the making of radio transmitters and heat resistant products.
Thermoelectricity
AWG
Quartz
Phase