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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. 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.






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






3. Giga






4. 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.






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






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






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






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






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






10. Micro






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






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






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






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






15. Mega






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






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






18. Are and Ohms






19. I and Ampere or Amp (A)






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






21. 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.






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






23. Nano






24. Tera






25. 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.






26. Tera






27. Are and Ohms






28. Kilo






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






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 movement of electrical charges around a closed path or circuit.






33. An electrical device used to store electrical charge.






34. Pico






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






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






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






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






39. 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.






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






41. 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






42. P and Watt (W)






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






44. 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.






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






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






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






50. Kilo