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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. An electrical circuit that increases the power - voltage or current of an applied signal.
N.O.
Amplifier
Kilovolt
Ohm
2. The time delay between the output signal and the response time of the receiver of the signal.
Ground
Lag
Joule
Electron
3. A variable resistor.
Direct Current
Rheostat
Forward resistance
Phase Proportioning
4. A high-intensity incandescent lamp with a quartz bulb containing an inert gas of iodine or bromine vapor.
Quartziodine Lamp
PSIA
Voltmeter
Gain
5. The opposition to electrical flow.
International Electrotechnical Commission
Impedance
Diode
Electrodynamic
6. A circuit element or components that allows signals of certain frequencies to pass and blocks signals of other frequencies.
Mueller Bridge
Filter
Joule
Potentiometer
7. One millionth of a meter.
Micron
Amplifier
Intrinsically safe
Zener Diode
8. The standard unit of magnetic flux.
Weber
Voltmeter
Flux
X ray
9. The energy delivered by a circuit or device. The electrical signal produced by the input to the transducer.
Institute of Electrical and Electronics Engineers
Velocity
Field cell
Output
10. 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.
Bridge Rectifier
Resistance
Absolute Zero
Quantum Electronics
11. A positive (+) electrode. The point where electrons exit from a device to the external electric circuit.
Anode
Transient
Coulomb
Quap
12. A unit of electric charge. The amount of charge conveyed in one second by one ampere.
Charge
Power Supply
Coulomb
Resistance
13. One thousandth of an inch.
N.C.
Electricity
Electrolyte
Mil
14. A sensor or switch with the ability to detect it's relationship to a metal target without making physical contact.
Process Meter
UHF
Proximity Sensor
System International
15. CSA ~LINK~
Process Meter
Canadian Standards Administration
Microvolt
Conduit
16. Resistance Temperature Detector.
Underwriters Laboratories
Institute of Electrical and Electronics Engineers
Kilovolt amperes
RTD
17. Intensity. The commonly used symbol used to represent Amperes when used in formulas. I = Intensity = Current = Amps = Amperes.
I
On/Off Controller
Zero Adjustment
Thermistor
18. A silicone semiconductor that maintains a fixed voltage in a circuit.
Kilowatt Hour
Filament
Zener Diode
Conductor
19. The power of one watt operating for one hour - and equal to 3 -600 joules.
Maximum Operating Temperature
Watt-hour
Impedance
Time Delay Before Availability
20. A meter used to measure units of volts.
Voltmeter
Modulated Light Source Control
Occupational Safety & Health Administration
Working Standard
21. The act of the opening of an electrical circuit.
Millimeter
Break
SCR
Latching logic
22. 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
Ohm
Institute of Electrical and Electronics Engineers
VOM
American National Standards Institute
23. The delayed period of time when outputs are turned off when power is initially applied.
Time Delay Before Availability
Quartz
Threshold Response
Power Dissipation
24. See; 'Proximity Sensor'.
Momentary switch
Proximity Switch
Absolute Zero
Kilowatt
25. When there is current through a semiconductor p-n junction it is the resistance of a forward-biased junction.
Vector
Electromagnet
Y
Forward resistance
26. 'American Wire Gauge' system used to determine wire size.
AWG
Power Supply
Vacuum
Watt
27. Response to the change in the level of the input signal.
Threshold Response
Response Time
Leakage current
Institute of Electrical and Electronics Engineers
28. An electrical circuit that is not 'made'. Contacts - switches or similar devices are open and preventing the floe of current.
Open Circuit
Quark
Electric circuit
Electrokinetics
29. The amount of power that is consumed and converted to heat.
Capacitor
Power Dissipation
Bridge Rectifier
Flux
30. Symbol used to denote transformer.
Beta
XFMR
Phase
BTU
31. Normally Closed.
Amplifier
N.C.
Q-value
Kilowatt
32. 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.
Charge
System International
Cycle
Vacuum
33. 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.
Canadian Standards Administration
Series Circuit
Mil
Anode
34. Protective circuitry to guard against spikes that might be induced on the supply line.
Intrinsically safe
Kilovolt amperes
UHF
Transient Protection
35. 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(-).
Charge
Ohmeter
Conductance
Frequency
36. Symbol used to denote transmitter.
Kilovolt
XMTR
UHF
Electrolyte
37. The electrical demand of a process. Load can be expressed or calculated as amps (current) - ohms (resistance) or watts (power).
X ray
Supply Voltage
Kilowatt Hour
Load
38. A small current leaking from an output device in the off state caused by semiconductor characteristics.
Ripple
Electron
Vector
Leakage current
39. A fundamental negatively (-) charged atomic particle that rotates around a positively (+) charged nucleus of the atom.
Frequency
X ray
Transient Protection
Electron
40. The range of voltage needed to maintain operation of a control or device.
Mil
Supply Voltage
Impedance
Quasiparticle
41. A connected path to earth or to a conductive body that has a reference potential to earth.
Grounded
Open Circuit
Volt
Time Delay Before Availability
42. NEMA;
National Electrical Manufacturers Association
Phase
Absolute Zero
PID
43. The range of temperature over which a device may be safely used. The temperature range which the device has been designed to operate.
Operating Temperature
Amp
Field-Effect Transistor (FET)
RFI
44. An anode (+) or cathode (-) conductor on a device through which an electric current passes.
Conductor
Thermocouple
Transient
Electrode
45. Kwh; One thousand watt-hours.
Kilowatt Hour
Conduit
Current Proportioning
Electromagnetic field
46. A highly accurate bridge configuration that is used to measure three-wire RTD thermometers.
Amplifier
Interface
Momentary switch
Mueller Bridge
47. Voltage; The unit of electromotive force (EMF) that causes current to flow. One volt causes a current of one amp through a resistance of one ohm.
On/Off Controller
Gain
Volt
Quap
48. A device that converts AC voltage to pulsating DC voltage.
Kilovolt amperes
Kilowatt Hour
Rectifier
Electrokinetics
49. (AC); Electrical current that changes (or alternates) in magnitude and direction of the current at regular intervals.
Alternating Current
Latent heat
Magnetic Field
PID
50. 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
Conductor
Quark
Make