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






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






3. Insulating board containing conductive tracks for circuit connections.






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






5. 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.






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






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






8. 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/






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






11. Kilo






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






13. Tera






14. Kilo






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






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






17. Micro






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






19. Pico






20. Nano






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






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






23. Giga






24. Nano






25. I and Ampere or Amp (A)






26. Insulating board containing conductive tracks for circuit connections.






27. Are and Ohms






28. C and Farad (F)






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. 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.






31. 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






32. I and Ampere or Amp (A)






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






34. Giga






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






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






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






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






39. V or E and Volt (V)






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






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






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






43. Pico






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






45. 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.






46. An electrical device used to store electrical charge.






47. An electrical device used to store electrical charge.






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






49. Milli






50. 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.