Test your basic knowledge |

Electrical Components

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. Current Consumption. The amount of amps or milliamps needed to maintain operation of a control or device.






2. The time delay between the output signal and the response time of the receiver of the signal.






3. An arrangement of any of various conductors through which electric current can flow from a supply current.






4. 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.






5. The amount of heat needed to convert one pound of water to one pound of steam. Latent heat is expressed in BTU per pound.






6. An electrical circuit that increases the power - voltage or current of an applied signal.






7. ANSI;






8. The delayed period of time when outputs are turned off when power is initially applied.






9. 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.






10. Electric current passing through an electrolyte which produces chemical changes in it.






11. Silicone Controlled Rectifier.






12. The output that is produced when one or more inputs are present.






13. A hypothetical basic subatomic nuclear particle believed to be the basic component of protons - neutrons - etc.






14. -459.67






15. A switching device used in switching high DC loads. It contains a small permanent magnet which deflects arc in order to quench it.






16. A solid-state switching device used in switching AC wave forms.






17. A coil of wire wound about a magnetic material - such as iron - that produces a magnetic field when current flows through the wire.






18. An electrical resistor composed of semiconductor material - whose resistance is a known rapidly varying function of temperature.






19. One millionth of a volt.






20. The resistance to electrical current. Resistance is measured in ohms.






21. '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.






22. Normally Open.






23. The energy delivered by a circuit or device. The electrical signal produced by the input to the transducer.






24. The element inside a vacuum tube - incandescent lamp or other similar device.






25. 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.






26. The current that is gained by a transistor when it is connected in a common emitter circuit.






27. Kw; One thousand watts.






28. The rapid on/off cycling of a relay caused by improper signal or adjustment - faulty contacts - or other malfunction.






29. The unit of power. One watt equals one joule per second - 1/746th horsepower.






30. 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.






31. The behavior of charged particles and the steady motion of charge in magnetic and electric fields.






32. 'American Wire Gauge' system used to determine wire size.






33. Pressure that is less than atmospheric pressure.






34. 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.






35. Also known as Hertz - it is the number of complete cycles of periodic waveform that occur during a time period of one second.






36. The rate at which electricity flows - measured in amperes - 1 ampere = 1 coulomb per second.






37. The speed or time rate of change of displacement.






38. IBEW;






39. A high-intensity incandescent lamp with a quartz bulb containing an inert gas of iodine or bromine vapor.






40. A silicone semiconductor that maintains a fixed voltage in a circuit.






41. 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.






42. A circuit element or components that allows signals of certain frequencies to pass and blocks signals of other frequencies.






43. The standard that is used to make comparison measurements or calibrations.






44. The interaction of magnetism and electrical current.






45. FM; ~LINK~






46. ISO;






47. A meter used to measure electrical resistance in units of ohms.






48. In a three phase connection all three phases are connected in series thus forming a closed circuit.






49. Chemical changes and energy produced by electric currents.






50. A unit of energy in solid-state physics with mass and momentum but that does not exist as a free particle.







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests