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






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






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






4. 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/






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






6. Giga






7. Mega






8. 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.






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






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






11. V or E and Volt (V)






12. Micro






13. 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.






14. 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.






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






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






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






18. I and Ampere or Amp (A)






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






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






21. 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






22. Tera






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






24. 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






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. Milli






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






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






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






30. Micro






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






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






33. V or E and Volt (V)






34. Kilo






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






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






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. Are and Ohms






39. An electrical device used to store electrical charge.






40. C and Farad (F)






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






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






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






44. P and Watt (W)






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






46. Pico






47. C and Farad (F)






48. 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.






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






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