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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. V or E and Volt (V)






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. P and Watt (W)






4. 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.






5. Pico






6. 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/






7. 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.






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






9. Kilo






10. Milli






11. Pico






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






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






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






15. Giga






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






17. P and Watt (W)






18. 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.






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






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






21. Giga






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






23. Insulating board containing conductive tracks for circuit connections.






24. Insulating board containing conductive tracks for circuit connections.






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






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






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






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






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






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






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






32. Kilo






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






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






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






36. Are and Ohms






37. 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.






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






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






40. C and Farad (F)






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






42. 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






43. 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.






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






45. C and Farad (F)






46. Tera






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






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






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






50. Mega