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






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






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






4. I and Ampere or Amp (A)






5. C and Farad (F)






6. Insulating board containing conductive tracks for circuit connections.






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






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






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






10. 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/






11. 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.






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






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






14. 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.






15. Kilo






16. P and Watt (W)






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






18. V or E and Volt (V)






19. 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.






20. Are and Ohms






21. Milli






22. C and Farad (F)






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






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






25. 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






26. Mega






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






28. 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.






29. Micro






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






31. 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.






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






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






34. Pico






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






36. 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.






37. 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.






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






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






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






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






42. 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/






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






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






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






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






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






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






49. Kilo






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