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






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. Micro






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






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






6. C and Farad (F)






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






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






9. Are and Ohms






10. 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






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






12. 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






13. Mega






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






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






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






17. Are and Ohms






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






19. 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.






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






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






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






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






24. V or E and Volt (V)






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






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






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






28. 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.






29. P and Watt (W)






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






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






32. 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.






33. Insulating board containing conductive tracks for circuit connections.






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






35. 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/






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. Kilo






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






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






41. Mega






42. Tera






43. Insulating board containing conductive tracks for circuit connections.






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






46. 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.






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






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






49. Milli






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







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