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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 positive (+) electrode. The point where electrons exit from a device to the external electric circuit.
National Electrical Manufacturers Association
Direct Current
Magnetic Blow-out Switch
Anode
2. The difference in potential measured between two points caused by resistance or impedance.
Bridge Rectifier
Conduit
Filament
Voltage Drop
3. Electric and magnetic force field that surrounds a moving electric charge.
Magnetic Blow-out Switch
Hazardous Location
Electromagnetic field
Maximum Operating Temperature
4. To close an electrical circuit. To establish an electrical circuit through the closing of a contact - switch or other related device.
Electrokinetics
Make
Efficiency
Volt
5. The moving of electricity or heat through a conductor.
On/Off Controller
Conduction
BTU
Ripple
6. An arrangement of any of various conductors through which electric current can flow from a supply current.
Electric circuit
Circuit
Fluorescent
Institute of Electrical and Electronics Engineers
7. A variable resistor.
Process Meter
Absolute Zero
Zener Diode
Rheostat
8. A controller whose action is either fully on or off.
Latching logic
M
On/Off Controller
Current
9. 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(-).
Proximity Sensor
RFI
Thermocouple
Charge
10. Two dissimilar metals connected at a point - that produce an electrical current whose magnitude is dependent upon the temperature at the junction point.
Output
Maximum Power Rating
Filter
Thermocouple
11. Normally Open.
National Electrical Code
Kilowatt
Vacuum
N.O.
12. Pressure that is less than atmospheric pressure.
Vacuum
Break
Impedance
Chatter
13. Symbol used for wye configuration for three phase electrical connections.
Isothermal
Electric circuit
RTD
Y
14. The standard that is used to make comparison measurements or calibrations.
Working Standard
Quantum Electronics
Rectifier
SCR
15. One millionth of a meter.
Light Emitting Diode
Maximum Power Rating
Transient Protection
Micron
16. Symbol used to denote transformer.
Velocity
Absolute Zero
XFMR
PID
17. See; 'Maximum Power Rating'.
Polarity
Cycle Time
Quality Control
Maximum Load Current
18. 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.
Electrode
Microamp
PSIA
Field-Effect Transistor (FET)
19. The basic of thermal energy. The work done by the force of one newton acting through a distance of one meter.
VF
Farad
Joule
Y
20. -459.67
Field cell
Absolute Zero
Kilowatt
Zener Diode
21. The maximum watts that a device can safely handle.
Delta
Filament
RTD
Maximum Power Rating
22. The range of voltage needed to maintain operation of a control or device.
Magnetic Blow-out Switch
Supply Voltage
Dilectric
Quantum Electronics
23. The interaction of magnetism and electrical current.
Root Mean Square
Electrodynamic
Power Supply
Hard Wired
24. Radio Frequency Interference.
Mean Temperature
RFI
Direct Current
Intrinsically safe
25. The delayed period of time when outputs are turned off when power is initially applied.
Time Delay Before Availability
Actuator
Y
Ripple
26. The amount of power that is consumed and converted to heat.
Power Dissipation
XFMR
National Electrical Code
Frequency
27. A solid-state switching device for semiconductors to convert AC current in one of two directions controlled by an electrode.
Conductance
Thyristor
Kilovolt
Grounded
28. Electrical energy produced by the action of heat.
Thermoelectricity
Electromagnet
Amp
Quartz
29. See; 'Proximity Sensor'.
Momentary switch
Zener Diode
Proximity Switch
Maximum Operating Temperature
30. Symbol used to denote transmitter.
Root Mean Square
XMTR
Quartz
Ground
31. One millionth of an amp.
Beta
Mean Temperature
Microamp
Electromagnet
32. The amount of time it takes for a device to react to an input signal.
Triac
Response Time
Transient Protection
Dilectric
33. An electrical circuit that is not 'made'. Contacts - switches or similar devices are open and preventing the floe of current.
Velocity
Phase
Conduit
Open Circuit
34. Pounds per square inch absolute. Pressure commonly in reference to vacuum.
Ingress Protection Ratings
International Electrotechnical Commission
PSIA
Phase Proportioning
35. A device that transfers power or energy from one system to another - such as taking a physical quality and changing it to an electrical signal.
Transducer
I
AWG
Thermistor
36. A form of silicone dioxide. Commonly used in the making of radio transmitters and heat resistant products.
SCR
Quartz
RFI
Weber
37. The rate of transfer of energy.
Electrodynamic
Charge
Flux
Break
38. A hypothetical nuclear of a quark plus an antiproton.
Quap
Ingress Protection Ratings
Electrodynamic
M
39. 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.
Amp
Charge
Filter
Root Mean Square
40. (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'
Manual Reset Switch
Magnetic Field
Amp
Response Time
41. A device having two terminals and has a low resistance to electrical current in one direction and a high resistance in the other direction.
Diode
Quality Control
Response Time
Watt-hour
42. That part of a circuit which is physically interconnected.
Hard Wired
Resistance
Intrinsically safe
Latching logic
43. The voltage that is applied across a semiconductor junction to permit forward current through that junction and the device. Forward voltage is also known as 'bias.'
Forward Voltage
Electrochemistry
Zener Effect
Joule
44. One thousandth of an inch.
Interface
Millivolt
Kilovolt amperes
Mil
45. 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
Quartz
Ohmeter
National Electrical Code
46. EPA; ~LINK~
Phase Proportioning
Environmental Protection Agency
RFI
Velocity
47. IBEW;
Joule
Velocity
International Brotherhood of Electrical Workers
M
48. A circuit element or components that allows signals of certain frequencies to pass and blocks signals of other frequencies.
Forward Voltage
Filter
Frequency
Field-Effect Transistor (FET)
49. Magnetically - opposite poles - north and south. In electricity - oppositely charged poles - positive and negative.
Electron
Kilowatt Hour
Maximum Power Rating
Polarity
50. A solid-state switching device used in switching AC wave forms.
Capacitor
Environmental Protection Agency
Triac
Quality Control