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






2. P and Watt (W)






3. The process of applying a thin coat of solder to materials prior to their being soldered; for example - application of a light coat of solder to the filaments of a conductor to hold the filaments in place prior to soldering the conductor.






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






5. I and Ampere or Amp (A)






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






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






8. F and Hertz (Hz) or Cycles per sec.






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






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






11. C and Farad (F)






12. A protective device in the current path that melts or breaks when current exceeds a predetermined maximum value.






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






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






15. 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.






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






17. Milli






18. Kilo






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






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






21. 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.






22. An electrical device used to store electrical charge.






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






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






25. Pico






26. A group of flip-flops (typically 4 or 8) that are arranged so that the values stored in the flip-flops are shifted from one flip-flop to the next for every clock.






27. A movement of electrical charges around a closed path or circuit.






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






29. A group of flip-flops (typically 4 or 8) that are arranged so that the values stored in the flip-flops are shifted from one flip-flop to the next for every clock.






30. F and Hertz (Hz) or Cycles per sec.






31. Micro






32. Pico






33. P and Watt (W)






34. Nano






35. Electronic test equipment that can perform multiple tasks. Typically one capable of measuring voltage - current - and resistance. More sophisticated modern digital multimeters also measure capacitance - inductance - current gain of transistors - and/






36. Insulating board containing conductive tracks for circuit connections.






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






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






39. An electrical device used to store electrical charge.






40. Micro






41. 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






42. 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.






43. Giga






44. The unwanted formation of a conductive path of solder between conductors.






45. A movement of electrical charges around a closed path or circuit.






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






47. Are and Ohms






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






49. A protective device in the current path that melts or breaks when current exceeds a predetermined maximum value.






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