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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. 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.






2. 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.






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






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






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






6. V or E and Volt (V)






7. 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.






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






9. Tera






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






11. 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.






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






13. Pico






14. Milli






15. Kilo






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






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






18. 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/






19. Giga






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






21. Micro






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






23. Kilo






24. P and Watt (W)






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






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






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






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






29. 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.






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






31. 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.






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






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






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






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






36. 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/






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






38. 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.






39. 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.






40. C and Farad (F)






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






42. Giga






43. 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.






44. Nano






45. V or E and Volt (V)






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






47. I and Ampere or Amp (A)






48. An electrical device used to store electrical charge.






49. 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






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