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






2. Kilo






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






4. Tera






5. P and Watt (W)






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






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






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






9. Micro






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






11. V or E and Volt (V)






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






13. Kilo






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






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






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






17. Giga






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






19. A way of representing a physical quantity by a series of binary numbers. A digital representation can have only specific discrete values.






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






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






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






23. 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.






24. Milli






25. A way of representing a physical quantity by a series of binary numbers. A digital representation can have only specific discrete values.






26. Giga






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






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






29. 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.






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






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






32. Are and Ohms






33. An electrical device used to store electrical charge.






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






35. 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.






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






37. Pico






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






39. C and Farad (F)






40. Pico






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






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






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






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






45. 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.






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






47. Insulating board containing conductive tracks for circuit connections.






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






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






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