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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. Mega






2. 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.






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






4. Micro






5. Mega






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






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






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






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






11. Nano






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






13. 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/






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






15. Are and Ohms






16. Tera






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






18. 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.






19. 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






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






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






22. Giga






23. 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/






24. Insulating board containing conductive tracks for circuit connections.






25. 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.






26. 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.






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






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






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






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






31. V or E and Volt (V)






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






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






34. Giga






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






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






37. 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.






38. Insulating board containing conductive tracks for circuit connections.






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






40. Pico






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






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






43. Kilo






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






45. Tera






46. 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.






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






48. 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.






49. 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.






50. 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.