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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. Are and Ohms






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






3. 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.






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






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






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






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






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






10. 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.






11. 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






12. Pico






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






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






15. P and Watt (W)






16. Are and Ohms






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






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






19. 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.






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






21. Nano






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






23. Insulating board containing conductive tracks for circuit connections.






24. C and Farad (F)






25. Milli






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






27. Kilo






28. 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.






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






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






31. 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.






32. 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/






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






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






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






36. P and Watt (W)






37. 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.






38. Tera






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






40. An electrical device used to store electrical charge.






41. Pico






42. 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.






43. Giga






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






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






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






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






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






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. Micro