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






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






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






5. Insulating board containing conductive tracks for circuit connections.






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






7. 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.






8. 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.






9. C and Farad (F)






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






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






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






13. 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.






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






15. 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.






16. Milli






17. 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.






18. Milli






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






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






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






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






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






24. Kilo






25. Tera






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






27. Micro






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






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






30. I and Ampere or Amp (A)






31. 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/






32. Pico






33. Nano






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






35. Micro






36. 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.






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






38. Mega






39. Mega






40. 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.






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






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






43. P and Watt (W)






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






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






46. Insulating board containing conductive tracks for circuit connections.






47. C and Farad (F)






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






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






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