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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. The interaction of magnetism and electrical current.
Anode
International Brotherhood of Electrical Workers
Velocity
Electrodynamic
2. Variable Frequency.
Quality Control
Fluorescent
VF
Vector
3. A unit of electrical current named after French physicist Andr
Ampere
Mil
Threshold Response
Relay
4. Radio Frequency Interference.
Gain
Field-Effect Transistor (FET)
RFI
Mueller Bridge
5. Pounds per square inch absolute. Pressure commonly in reference to vacuum.
PSIA
Instrument Society of America
Kilowatt Hour
American National Standards Institute
6. A switching device used in switching high DC loads. It contains a small permanent magnet which deflects arc in order to quench it.
CMV
Magnetic Blow-out Switch
International Electrotechnical Commission
Ampere
7. 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
Cycle
Time Delay Before Availability
Supply Voltage
8. The rate at which electricity flows - measured in amperes - 1 ampere = 1 coulomb per second.
Current
Electromagnet
Filter
Lag
9. kV; One thousand volts.
Grounded Conductor
Microamp
Kilovolt
Magnetic Flux
10. A device used to store electrical energy in an electrostatic field until discharge.
Transient Protection
Frequency
Capacitor
Polarity
11. One of the very small discrete packets into which many forms of energy are subdivided.
Zener Effect
Quantum
Time Delay Before Availability
Phase Proportioning
12. An electromagnetic radiation produced when the inner satellite electrons of heavy atoms have been excited by collision with a stream of fast electrons return to their ground state - giving up the energy previously imparted to them.
Ingress Protection Ratings
X ray
Microvolt
UHF
13. A meter used to measure electrical resistance in units of ohms.
Ohmeter
Leakage current
Delta
Electrolyte
14. A sudden and unwanted increase or decrease of supply voltage or current.
Kilowatt
Transient
Quartz
PSIG
15. The power of one watt operating for one hour - and equal to 3 -600 joules.
Watt-hour
Rheostat
Leakage current
Capacitor
16. Intensity. The commonly used symbol used to represent Amperes when used in formulas. I = Intensity = Current = Amps = Amperes.
I
RFI
Quartziodine Lamp
Kilowatt Hour
17. A panel meter with zero and span adjustments - commonly scaled for signals such as 1-5 volts - 4-20mA - etc.
Vacuum
Process Meter
OR Logic
PSIG
18. 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(-).
Break
Process Meter
Charge
Ingress Protection Ratings
19. Symbol used to denote transformer.
Chatter
XFMR
American National Standards Institute
Electroduct
20. The moving of electricity or heat through a conductor.
Conduction
International Electrotechnical Commission
RFI
Plasma
21. A material used to conduct electricity or heat.
X ray
Y
Ground
Conductor
22. A process that is kept at a constant temperature.
Kilowatt Hour
Isothermal
Modulated Light Source Control
Occupational Safety & Health Administration
23. A high-intensity incandescent lamp with a quartz bulb containing an inert gas of iodine or bromine vapor.
Hard Wired
Quartziodine Lamp
Electromagnetic field
PID
24. Magnetically - opposite poles - north and south. In electricity - oppositely charged poles - positive and negative.
National Electrical Code
Response Time
Polarity
Amplifier
25. The speed or time rate of change of displacement.
Phase
Actuator
Velocity
Delta
26. A form of silicone dioxide. Commonly used in the making of radio transmitters and heat resistant products.
VF
Thermistor
Quartz
Canadian Standards Administration
27. The measure of the ability of a material or substance to carry electrical current.
Actuator
BTU
RFI
Conductance
28. Symbol for Mega - one million.
Transient
Gain
Ohm
M
29. Output power divided by input power - (work performed in ratio to energy used to produce it).
Efficiency
Maximum Load Current
Canadian Standards Administration
Leakage current
30. The mechanism of a switch which operates the contacts.
Actuator
Modulated Light Source Control
National Fire Protection Association
Magnetic Flux
31. MLS; A photoelectric control that operates on pulsed infrared radiation at a specific frequency - and responds only to that frequency of pulse. MLS is used frequently in areas where ambient light may cause problems with other types of sensors.
Modulated Light Source Control
American National Standards Institute
OR Logic
Power Dissipation
32. An electrical resistor composed of semiconductor material - whose resistance is a known rapidly varying function of temperature.
Thermistor
Maximum Power Rating
Quality Control
Occupational Safety & Health Administration
33. Commonly used in generators and motors - it is an electromagnet formed from a coil of insulated wire that is wound around a soft iron core.
Field cell
Break
National Electrical Manufacturers Association
Cycle Time
34. The average temperature of a process.
Voltage Drop
Mean Temperature
Q-value
Environmental Protection Agency
35. MA; One thousandth of an amp.
Efficiency
Electroduct
National Electrical Manufacturers Association
Milliamp
36. An electrical circuit that is not 'made'. Contacts - switches or similar devices are open and preventing the floe of current.
Transient Protection
Mueller Bridge
Open Circuit
International Brotherhood of Electrical Workers
37. 'Common Mode Voltage.' The voltage which is tolerable between signal and ground.
CMV
Cycle
Response Time
Grounded
38. A silicone semiconductor that maintains a fixed voltage in a circuit.
Q-value
Zener Diode
Occupational Safety & Health Administration
Magnetic Flux
39. A unit of energy in solid-state physics with mass and momentum but that does not exist as a free particle.
Millimeter
International Brotherhood of Electrical Workers
Open Circuit
Quasiparticle
40. 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
Potentiometer
Transient
Ground
Electrokinetics
41. ISO;
Microamp
International Organization for Standardization
Phase Proportioning
Circuit
42. One millionth of an amp.
Ohmeter
Isothermal
Millivolt
Microamp
43. The magnitude and time phase of a quantity - represented by a plotted line.
Vector
Threshold Response
Electron
Momentary switch
44. In a three phase connection all three phases are connected in series thus forming a closed circuit.
Pulse
Delta
Threshold Response
Electroduct
45. Kva; One thousand volt amps.
Thermoelectricity
Kilovolt amperes
XFMR
Electromagnet
46. The electrical demand of a process. Load can be expressed or calculated as amps (current) - ohms (resistance) or watts (power).
Manual Reset Switch
Load
N.C.
Transient Protection
47. A tube - pipe or trough that carries and protects electric wiring.
Phase Proportioning
Transient Protection
Electromagnet
Conduit
48. The quality of having the ability to emit light when struck by electrons or another form of radiation.
CMV
Fluorescent
Electromagnet
Magnetic Blow-out Switch
49. The delayed period of time when outputs are turned off when power is initially applied.
Time Delay Before Availability
N.O.
Maximum Load Current
Thermocouple
50. 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.'
International Brotherhood of Electrical Workers
Mueller Bridge
Forward Voltage
Resistance