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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. I and Ampere or Amp (A)






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






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






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






5. P and Watt (W)






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






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






8. Tera






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






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. Micro






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






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






14. 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.






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






16. 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.






17. 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.






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






19. C and Farad (F)






20. C and Farad (F)






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






22. Micro






23. 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.






24. V or E and Volt (V)






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






26. 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.






27. Milli






28. I and Ampere or Amp (A)






29. 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/






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






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






32. Milli






33. Nano






34. 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.






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






36. V or E and Volt (V)






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






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






39. 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.






40. 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.






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






42. Are and Ohms






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






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






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






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






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






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






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