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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. Micro






2. 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.






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






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






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






6. Giga






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






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






9. I and Ampere or Amp (A)






10. Insulating board containing conductive tracks for circuit connections.






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






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






13. 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.






14. C and Farad (F)






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






16. Kilo






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






18. Insulating board containing conductive tracks for circuit connections.






19. Nano






20. Pico






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






22. 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.






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






24. An electrical device used to store electrical charge.






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






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






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






28. 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






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






30. 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.






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






32. 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.






33. Are and Ohms






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






35. Kilo






36. 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.






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






38. 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.






39. Mega






40. V or E and Volt (V)






41. 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






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






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






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






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






46. Milli






47. V or E and Volt (V)






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






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






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







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