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






2. Tera






3. Nano






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






5. 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.






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






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






8. I and Ampere or Amp (A)






9. 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.






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






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






12. Tera






13. Milli






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






15. 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.






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






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






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






19. Mega






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






21. V or E and Volt (V)






22. Kilo






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






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






25. Insulating board containing conductive tracks for circuit connections.






26. 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.






27. Are and Ohms






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






29. Nano






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






31. Kilo






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






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






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






35. Micro






36. Are and Ohms






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






39. 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.






40. 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.






41. P and Watt (W)






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






43. 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






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






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






46. An electrical device used to store electrical charge.






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






48. C and Farad (F)






49. Giga






50. 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.