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






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






4. C and Farad (F)






5. 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.






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






7. V or E and Volt (V)






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






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






10. 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.






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






12. V or E and Volt (V)






13. 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






14. 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.






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






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






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






18. Tera






19. 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.






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






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






22. Insulating board containing conductive tracks for circuit connections.






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






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






25. I and Ampere or Amp (A)






26. 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.






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






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






29. Nano






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






31. Are and Ohms






32. An electrical device used to store electrical charge.






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






34. Micro






35. Insulating board containing conductive tracks for circuit connections.






36. Are and Ohms






37. Kilo






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






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






40. 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.






41. Milli






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






43. C and Farad (F)






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






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






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






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






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






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






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