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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 two terminal device that conducts in only one direction.






2. An electrical device used to store electrical charge.






3. 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.






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






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






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






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






8. 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.






9. Mega






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






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






12. Pico






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






14. Insulating board containing conductive tracks for circuit connections.






15. Milli






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






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






18. 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.






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






20. 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






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






22. V or E and Volt (V)






23. An electrical device used to store electrical charge.






24. 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.






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






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






27. 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.






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






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






30. P and Watt (W)






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. Are and Ohms






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






34. 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.






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






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






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. C and Farad (F)






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






40. C and Farad (F)






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






42. Micro






43. Micro






44. 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.






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






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






47. Giga






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






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






50. Kilo