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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. Pico






2. Milli






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






4. P and Watt (W)






5. 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.






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






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






8. C and Farad (F)






9. 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.






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






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






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






13. Insulating board containing conductive tracks for circuit connections.






14. V or E and Volt (V)






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






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






17. C and Farad (F)






18. 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.






19. Micro






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






21. 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.






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






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






24. V or E and Volt (V)






25. 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.






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






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






28. Kilo






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






30. Mega






31. 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.






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






33. Micro






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






35. I and Ampere or Amp (A)






36. An electrical device used to store electrical charge.






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






38. Nano






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






40. Milli






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






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






43. 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.






44. Are and Ohms






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






46. 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.






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






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






49. 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.






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