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






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






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






4. 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.






5. Nano






6. 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.






7. V or E and Volt (V)






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






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






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






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






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






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






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






15. 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.






16. I and Ampere or Amp (A)






17. 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/






18. Nano






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






20. Micro






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






22. Giga






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






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






25. 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/






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






27. An electrical device used to store electrical charge.






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






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






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






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






32. An electrical device used to store electrical charge.






33. Giga






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






35. 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.






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






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. 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






39. 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.






40. Are and Ohms






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






43. 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.






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






45. P and Watt (W)






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






47. Insulating board containing conductive tracks for circuit connections.






48. V or E and Volt (V)






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






50. C and Farad (F)