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






2. Kilo






3. Milli






4. Are and Ohms






5. 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.






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






7. Insulating board containing conductive tracks for circuit connections.






8. An electrical device used to store electrical charge.






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






10. An electrical device used to store electrical charge.






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






12. Kilo






13. Micro






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






15. V or E and Volt (V)






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






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






18. 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.






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






20. 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.






21. Nano






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






23. 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.






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






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






26. 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.






27. 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.






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






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






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






31. 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.






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






33. Tera






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






35. Nano






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






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






38. I and Ampere or Amp (A)






39. Mega






40. 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.






41. I and Ampere or Amp (A)






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






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






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






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






46. Milli






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






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






49. 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.






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