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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. Insulating board containing conductive tracks for circuit connections.






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






3. 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.






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






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






6. Mega






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






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






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






11. C and Farad (F)






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






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






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






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






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






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






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






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






20. An electrical device used to store electrical charge.






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






22. An electrical device used to store electrical charge.






23. Kilo






24. P and Watt (W)






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






26. I and Ampere or Amp (A)






27. 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.






28. Are and Ohms






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






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






31. Electronic test equipment that can perform multiple tasks. Typically one capable of measuring voltage - current - and resistance. More sophisticated modern digital multimeters also measure capacitance - inductance - current gain of transistors - and/






32. P and Watt (W)






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






34. 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.






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






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






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






39. 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






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






41. 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.






42. V or E and Volt (V)






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






44. 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






45. Pico






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






47. Insulating board containing conductive tracks for circuit connections.






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






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






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







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