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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. Milli






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






3. An electrical device used to store electrical charge.






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






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






7. 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






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






9. Nano






10. C and Farad (F)






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






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






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






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






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






16. P and Watt (W)






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






18. Kilo






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






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






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






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






23. 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.






24. Mega






25. V or E and Volt (V)






26. Pico






27. 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.






28. 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/






29. 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.






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






31. 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.






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






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






34. 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.






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






36. Milli






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






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






39. I and Ampere or Amp (A)






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






41. Are and Ohms






42. Insulating board containing conductive tracks for circuit connections.






43. C and Farad (F)






44. Giga






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






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






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






48. Mega






49. I and Ampere or Amp (A)






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







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