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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. Tera






2. 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.






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






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






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






6. Are and Ohms






7. P and Watt (W)






8. 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.






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






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






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






12. Insulating board containing conductive tracks for circuit connections.






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






14. P and Watt (W)






15. Milli






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






17. Kilo






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






19. 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






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






21. Mega






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






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






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






25. Pico






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






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






28. An electrical device used to store electrical charge.






29. 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.






30. 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.






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






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






34. V or E and Volt (V)






35. 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.






36. Milli






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






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






39. Tera






40. 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.






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






42. 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.






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






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






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






46. Giga






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






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






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






50. An electrical device used to store electrical charge.