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






3. Insulating board containing conductive tracks for circuit connections.






4. 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






5. Mega






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






7. Mega






8. Nano






9. Kilo






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






11. P and Watt (W)






12. Micro






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






14. 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.






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






16. Are and Ohms






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






18. 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.






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






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






21. Micro






22. 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/






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






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






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






26. Nano






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






28. I and Ampere or Amp (A)






29. V or E and Volt (V)






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






31. 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.






32. I and Ampere or Amp (A)






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






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






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






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






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. 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.






39. 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






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






41. V or E and Volt (V)






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






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






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






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






46. 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.






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






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






49. Are and Ohms






50. An electrical device used to store electrical charge.