Test your basic knowledge |

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






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






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






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






5. Tera






6. Nano






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






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






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






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






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






12. Light-emitting diode. An electronic device that conducts current in one direction only and illuminates when it is conducting.






13. Nano






14. 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.






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






16. C and Farad (F)






17. Pico






18. Micro






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






20. 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






21. 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.






22. 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.






23. 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.






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






25. Kilo






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






27. 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.






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






29. V or E and Volt (V)






30. 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.






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






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






33. I and Ampere or Amp (A)






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






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






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






37. C and Farad (F)






38. Micro






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






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






41. Insulating board containing conductive tracks for circuit connections.






42. An electrical device used to store electrical charge.






43. 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.






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






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






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






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






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






49. Insulating board containing conductive tracks for circuit connections.






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