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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. Micro






2. Kilo






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






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






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. 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






7. 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.






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






9. 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/






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






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






12. Insulating board containing conductive tracks for circuit connections.






13. 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.






14. 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






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






16. Milli






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






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






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






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






21. 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.






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






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






24. Micro






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






26. 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/






27. Tera






28. Pico






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






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






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






32. Pico






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






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






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






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






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






38. 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.






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






40. P and Watt (W)






41. Tera






42. P and Watt (W)






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






44. 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.






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






46. Milli






47. Mega






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






49. I and Ampere or Amp (A)






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