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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 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






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






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






4. Pico






5. C and Farad (F)






6. 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.






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






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






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






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






12. 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.






13. Milli






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






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






16. P and Watt (W)






17. V or E and Volt (V)






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






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






20. Insulating board containing conductive tracks for circuit connections.






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






22. 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/






23. Are and Ohms






24. Mega






25. 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.






26. 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.






27. Nano






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






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






30. Giga






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






32. 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.






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






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






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






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






37. 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.






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






39. 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/






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






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






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






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






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






45. Nano






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






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






48. 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.






49. An electrical device used to store electrical charge.






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







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