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






2. V or E and Volt (V)






3. Kilo






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






5. Nano






6. 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.






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






8. Pico






9. 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.






10. P and Watt (W)






11. Tera






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






13. Micro






14. An electrical device used to store electrical charge.






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. C and Farad (F)






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






19. Tera






20. An electrical device used to store electrical charge.






21. 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.






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






23. 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.






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






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






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






27. 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.






28. Milli






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






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






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






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






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






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






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






36. Kilo






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






38. C and Farad (F)






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






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






41. 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.






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






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






44. Mega






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






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






47. 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.






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






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






50. 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