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






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






3. 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.






4. C and Farad (F)






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






6. 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.






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






8. 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.






9. 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






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






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






12. 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.






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






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






15. Micro






16. 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/






17. Tera






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






19. An electrical device used to store electrical charge.






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






21. Giga






22. Are and Ohms






23. Tera






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






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






26. Insulating board containing conductive tracks for circuit connections.






27. Kilo






28. Abbreviation of System International - a system of practical units based on the meter - kilogram - second - ampere - Kelvin - mole - and candela.






29. I and Ampere or Amp (A)






30. Pico






31. P and Watt (W)






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






34. 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.






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






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






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






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






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






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






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






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






43. 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/






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






45. C and Farad (F)






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






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






48. Micro






49. 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.






50. I and Ampere or Amp (A)







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