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






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






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






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






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






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






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






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






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






10. Kilo






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






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






13. 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.






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






15. I and Ampere or Amp (A)






16. 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.






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






18. P and Watt (W)






19. 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.






20. 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.






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






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






23. Are and Ohms






24. 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.






25. Insulating board containing conductive tracks for circuit connections.






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






27. 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.






28. C and Farad (F)






29. 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.






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






31. Micro






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






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






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






36. Pico






37. An electrical device used to store electrical charge.






38. 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/






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






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






41. A group of flip-flops (typically 4 or 8) that are arranged so that the values stored in the flip-flops are shifted from one flip-flop to the next for every clock.






42. Tera






43. V or E and Volt (V)






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






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






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






47. An electrical device used to store electrical charge.






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






49. Milli






50. 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.






Can you answer 50 questions in 15 minutes?



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