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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 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.






2. Nano






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






4. Mega






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






6. 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.






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






8. 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.






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






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






11. 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






12. 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/






13. I and Ampere or Amp (A)






14. C and Farad (F)






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






16. V or E and Volt (V)






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






18. Tera






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






20. Giga






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






22. Are and Ohms






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






24. Nano






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






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






27. C and Farad (F)






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






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






30. 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.






31. Mega






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






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






34. Tera






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






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






37. Pico






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






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






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






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






42. 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.






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






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






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






46. Pico






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






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






49. 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.






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