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






2. C and Farad (F)






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






4. 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/






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






6. Insulating board containing conductive tracks for circuit connections.






7. 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.






8. Nano






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






10. 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.






11. Pico






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






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






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






15. P and Watt (W)






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






17. Micro






18. 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.






19. 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.






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






21. Are and Ohms






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






23. Micro






24. Insulating board containing conductive tracks for circuit connections.






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






26. Tera






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






28. Mega






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. C and Farad (F)






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






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






33. An electrical device used to store electrical charge.






34. 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.






35. P and Watt (W)






36. 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.






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






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






39. Mega






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






41. Milli






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






43. Kilo






44. V or E and Volt (V)






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






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






47. Nano






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






49. 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.






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