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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. Mega






2. 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






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






4. Pico






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






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






7. P and Watt (W)






8. 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.






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 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






11. Tera






12. Pico






13. C and Farad (F)






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






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






16. 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.






17. 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/






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






19. An electrical device used to store electrical charge.






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






21. Tera






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






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






24. V or E and Volt (V)






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






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






29. Nano






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






31. V or E and Volt (V)






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






33. Micro






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






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






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






37. 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.






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






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






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






41. Micro






42. 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.






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






44. C and Farad (F)






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






46. Milli






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 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.






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