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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 movement of electrical charges around a closed path or circuit.






2. 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.






3. Are and Ohms






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






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






6. 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.






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






8. 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.






9. An electrical device used to store electrical charge.






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






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






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






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






14. V or E and Volt (V)






15. Kilo






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






17. 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.






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






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






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






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






22. Milli






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. Micro






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. Giga






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






28. 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/






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






30. 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.






31. I and Ampere or Amp (A)






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






33. Mega






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






35. Are and Ohms






36. 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.






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






38. P and Watt (W)






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






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






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






42. 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






43. Pico






44. Nano






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






46. 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.






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






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






49. V or E and Volt (V)






50. 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.