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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. 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/






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






3. 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.






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






5. 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.






6. Tera






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






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






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






10. I and Ampere or Amp (A)






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






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






13. 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.






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






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






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






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






18. Kilo






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






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






21. Insulating board containing conductive tracks for circuit connections.






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






23. 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.






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






25. Kilo






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






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






28. Tera






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






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






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






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






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






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






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






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






38. Pico






39. V or E and Volt (V)






40. 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.






41. Insulating board containing conductive tracks for circuit connections.






42. 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.






43. Pico






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. 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.






46. Giga






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






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






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






50. Mega