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






2. Pico






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






4. Insulating board containing conductive tracks for circuit connections.






5. 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.






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






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






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






9. P and Watt (W)






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






11. Kilo






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






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






14. 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






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






16. Tera






17. A way of representing some physical quantity - such as temperature or velocity - by a proportional continuous voltage or current. An analog voltage or current can have any value within a defined range.






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






19. V or E and Volt (V)






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






21. Giga






22. Tera






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






24. Micro






25. Micro






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






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






28. 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.






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






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






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






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






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






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






35. 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.






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






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






38. Nano






39. 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.






40. Kilo






41. 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.






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






43. 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






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






45. I and Ampere or Amp (A)






46. 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.






47. A way of representing some physical quantity - such as temperature or velocity - by a proportional continuous voltage or current. An analog voltage or current can have any value within a defined range.






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






49. Mega






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