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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. Mega






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






3. Mega






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






5. Insulating board containing conductive tracks for circuit connections.






6. 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.






7. Nano






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






9. 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/






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






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






12. 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.






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






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






15. 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.






16. An electrical device used to store electrical charge.






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






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






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






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






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






22. Insulating board containing conductive tracks for circuit connections.






23. 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.






24. 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.






25. 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.






26. P and Watt (W)






27. I and Ampere or Amp (A)






28. Tera






29. 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.






30. Are and Ohms






31. 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






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






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






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






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






36. C and Farad (F)






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






38. Pico






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






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. Micro






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






44. P and Watt (W)






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






46. C and Farad (F)






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






48. An electrical device used to store electrical charge.






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






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






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