Test your basic knowledge |

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






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






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






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






5. P and Watt (W)






6. V or E and Volt (V)






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






8. 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.






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






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






11. Pico






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






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






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






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






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






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






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






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






20. 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/






21. 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.






22. C and Farad (F)






23. Milli






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






25. 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.






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






27. 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






28. 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.






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






30. 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






31. 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.






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






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






34. Giga






35. 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.






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






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






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






39. 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.






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






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






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






43. 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.






44. P and Watt (W)






45. An electrical device used to store electrical charge.






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






47. Are and Ohms






48. V or E and Volt (V)






49. Tera






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