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Digital Electronics Vocab

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 device used to store electrical charge.






2. A solder connection that exhibits poor wetting and is characterized by a grayish - porous appearance due to excessive impurities in the solder - inadequate cleaning prior to soldering - and/or the insufficient application of heat during the soldering






3. The smallest particle of an element that still has the same characteristics as the element.






4. I and Ampere or Amp (A)






5. A very common IC package with two parallel rows of pins intended to be inserted into a socket of through holes drilled in a printed circuit board.






6. V or E and Volt (V)






7. V or E and Volt (V)






8. C and Farad (F)






9. Numbers entered as a number from one to ten multiplied by a power of ten.






10. Metallic alloy of tin and lead that is used to join two metal surfaces.






11. Milli






12. Any material that allows the free movement of electric changes - such as electrons - to provide an electric current.






13. C and Farad (F)






14. Signal in the form of a rectangular pulse train or a square wave.






15. Milli






16. The instantaneous voltage of a waveform. Often used to mean maximum amplitude - or peak voltage - or a pulse.






17. Component made of material that opposes flow of current and therefore has some value of resistance.






18. Any material that allows the free movement of electric changes - such as electrons - to provide an electric current.






19. Pico






20. A very common IC package with two parallel rows of pins intended to be inserted into a socket of through holes drilled in a printed circuit board.






21. An IC package similar to a DIP - but smaller - which is designed for automatic placement and soldering on the surface of a circuit board.






22. A two terminal device that conducts in only one direction.






23. P and Watt (W)






24. I and Ampere or Amp (A)






25. Circuit that is capable of sensing and holding a signal until the event that changed the signal can be addressed.






26. Term derived from 'transfer resistor.' Semiconductor device that can be used as an amplifier or as an electronic switch.






27. P and Watt (W)






28. A series of logic 1s and 0s plotted as a function of time.






29. A floating point system in which numbers are expressed as products consisting of a number greater than one multiplied by an appropriate power of ten that is some multiple of three.






30. Kilo






31. A circuit board for wiring temporary circuits - usually used for prototypes or laboratory work.






32. Mega






33. A square IC package with leads on all four sides designed for surface mounting on a circuit board.






34. Giga






35. Tera






36. An array of seven independently controlled light-emitting diodes (LED) or liquid crystal display (LCD) elements - shaped like a figure-8 - which can be used to display decimal digits and other characters by turning on the appropriate elements.






37. A way of representing a physical quantity by a series of binary numbers. A digital representation can have only specific discrete values.






38. Process of joining two metallic surfaces to make an electrical contact by melting solder (usually tin and lead) across them.






39. A square IC package with leads on all four sides designed for surface mounting on a circuit board.






40. Tool with an internal heating element used to heat surfaces being soldered to the point where the solder becomes molten.






41. Coding system of colored stripes on a resistor to indicate the resistor's value and tolerance.






42. Insulating board containing conductive tracks for circuit connections.






43. Abbreviation of System International - a system of practical units based on the meter - kilogram - second - ampere - Kelvin - mole - and candela.






44. A circuit the produces a digital output signal that is half the frequency of the input.






45. An IC package similar to a DIP - but smaller - which is designed for automatic placement and soldering on the surface of a circuit board.






46. Component made of material that opposes flow of current and therefore has some value of resistance.






47. Signal in the form of a rectangular pulse train or a square wave.






48. The direction of current flow associated with positive charge in motion. The current flow direction is from a positive to negative potential - which is in the opposite direction of electron flow.






49. The instantaneous voltage of a waveform. Often used to mean maximum amplitude - or peak voltage - or a pulse.






50. Are and Ohms