SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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 switching device used in switching high DC loads. It contains a small permanent magnet which deflects arc in order to quench it.
Zero Adjustment
Magnetic Blow-out Switch
Manual Reset Switch
SCR
2. IEEE;
Relay
Quantum
Forward Voltage
Institute of Electrical and Electronics Engineers
3. A positive (+) electrode. The point where electrons exit from a device to the external electric circuit.
Anode
Make
Proximity Sensor
Manual Reset Switch
4. The maximum watts that a device can safely handle.
Maximum Power Rating
Voltage Drop
Efficiency
International Organization for Standardization
5. 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
Ingress Protection Ratings
Ohm
Quark
Thermistor
6. 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.
Ampere
Velocity
Pulse
Direct Current
7. 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.
Quap
Volt
Grounded
Maximum Power Rating
8. A unit of energy in solid-state physics with mass and momentum but that does not exist as a free particle.
N.C.
Make
Kilovolt
Quasiparticle
9. An electrically conductive fused salt or a solution where the charge is carried by ionic movement.
Flux
Electrolyte
Watt
Rectifier
10. A form of silicone dioxide. Commonly used in the making of radio transmitters and heat resistant products.
Hazardous Location
Momentary switch
Response Time
Quartz
11. 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
Joule
PSIA
Celsius
12. Resistance Temperature Detector.
Occupational Safety & Health Administration
Y
RTD
Canadian Standards Administration
13. Silicone Controlled Rectifier.
Latent heat
Leakage current
SCR
Relay
14. LED; A solid state light source component that emits light or invisible infrared radiation.
Light Emitting Diode
Manual Reset Switch
CMV
Circuit
15. 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.
Forward resistance
Modulated Light Source Control
Proximity Switch
Cycle
16. IEC;
International Electrotechnical Commission
Magnetic Blow-out Switch
Mueller Bridge
Mean Temperature
17. The time based relationship between a reference and a periodic function.
Conduction
Plasma
Phase
Pulse
18. One millionth of an amp.
Underwriters Laboratories
Microamp
Vacuum
Hazardous Location
19. A meter used to measure electrical resistance in units of ohms.
Ohmeter
Electricity
Y
Grounded
20. The opposition to electrical flow.
Electrodynamic
Magnetic Blow-out Switch
Impedance
Transducer
21. A fundamental negatively (-) charged atomic particle that rotates around a positively (+) charged nucleus of the atom.
Grounded Conductor
Dilectric
Electron
Magnetic Field
22. Pounds per square inch differential. The difference in pressure between two points.
Voltmeter
Triac
Leakage current
PSID
23. A highly accurate bridge configuration that is used to measure three-wire RTD thermometers.
Pulse
Relay
XMTR
Mueller Bridge
24. The method by which two devices or systems are connected and interact with each other.
Bridge Rectifier
Interface
BTU
Series Circuit
25. Normally Open.
XMTR
Cycle Time
Open Circuit
N.O.
26. The time delay between the output signal and the response time of the receiver of the signal.
International Brotherhood of Electrical Workers
Millimeter
Electrode
Lag
27. ISA;
Rheostat
Instrument Society of America
Threshold Response
Chatter
28. The rate at which electricity flows - measured in amperes - 1 ampere = 1 coulomb per second.
SCR
Celsius
Voltage Drop
Current
29. In a three phase connection all three phases are connected in series thus forming a closed circuit.
Thermocouple
Delta
Working Standard
VOM
30. A negative (-) electrode. The point of entry of electrons into a device from an external circuit. The negative electrode of a semiconductor diode.
Leakage current
Efficiency
Cathode
Zener Effect
31. The measure of the ability of a material or substance to carry electrical current.
Diode
Conductance
Direct Current
Efficiency
32. The part of a circuit that supplies power to the entire circuit or part of the circuit. Usually a separate unit that supplies power to a specific part of the circuit in a system.
Volt
Power Supply
Gain
American National Standards Institute
33. A meter used to measure units of volts.
Grounded Conductor
Dilectric
System International
Voltmeter
34. A region of space that surrounds a moving electrical charge or a magnetic pole - in which the electrical charge or magnetic pole experiences a force that is above the electrostatic ones associated with particles at rest.
Root Mean Square
Magnetic Field
Watt
Thermocouple
35. The power of one watt operating for one hour - and equal to 3 -600 joules.
Watt-hour
Rheostat
XMTR
X ray
36. 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.
Output
Series Circuit
Conductor
Absolute Zero
37. The adjustment of a display that results are zero on the display corresponding to a non-zero signal.
I
Rheostat
Millivolt
Zero Adjustment
38. A hypothetical nuclear of a quark plus an antiproton.
Lag
Conduction
Quap
Cycle Time
39. The element inside a vacuum tube - incandescent lamp or other similar device.
Circuit
Filament
Amp
Electrokinetics
40. 'British Thermal Unit' - the amount of thermal energy required to raise one pound of water 1degree F. One BTU is equal to .293 watt hours. One kWh is equal to 3412 BTUs.
Ohm
Mil
BTU
RTD
41. A device that converts AC voltage to pulsating DC voltage.
Maximum Load Current
AWG
National Electrical Code
Rectifier
42. MA; One thousandth of an amp.
Milliamp
Phase Proportioning
Momentary switch
Watt-hour
43. Output power divided by input power - (work performed in ratio to energy used to produce it).
Impedance
Infrared
Grounding Conductor
Efficiency
44. See; 'Proximity Sensor'.
Proximity Switch
Joule
Grounded Conductor
Quap
45. A variable resistor.
Bridge Rectifier
Ground
Rheostat
Canadian Standards Administration
46. NFPA;
Institute of Electrical and Electronics Engineers
Efficiency
Diode
National Fire Protection Association
47. Pressure that is less than atmospheric pressure.
Flux
Electrodynamic
Thyristor
Vacuum
48. Mm; One thousandth of a meter.
Triac
Pulse
Millimeter
Isothermal
49. The magnitude and time phase of a quantity - represented by a plotted line.
VF
VHF
Power Dissipation
Vector
50. A solid-state switching device used in switching AC wave forms.
Triac
Hazardous Location
Conduit
Frequency