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






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






3. Micro






4. Insulating board containing conductive tracks for circuit connections.






5. 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.






6. I and Ampere or Amp (A)






7. 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.






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






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






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






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






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






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






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






15. Are and Ohms






16. 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






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






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






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






20. Insulating board containing conductive tracks for circuit connections.






21. 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.






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






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






24. Are and Ohms






25. V or E and Volt (V)






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






27. Giga






28. Nano






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






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






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






32. Pico






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






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. Kilo






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






37. Tera






38. Micro






39. An electrical device used to store electrical charge.






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






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






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






43. 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.






44. Pico






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






46. 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.






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






48. 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.






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