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. 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.






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






3. 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.






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






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






6. I and Ampere or Amp (A)






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






8. 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






9. V or E and Volt (V)






10. C and Farad (F)






11. Giga






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






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






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






15. Pico






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






17. Nano






18. Milli






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






20. Mega






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






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






23. Are and Ohms






24. 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.






25. An electrical device used to store electrical charge.






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






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






28. Nano






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






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






31. 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.






32. 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.






33. Micro






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






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






36. Tera






37. 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/






38. P and Watt (W)






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






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






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






42. Insulating board containing conductive tracks for circuit connections.






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






44. 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/






45. C and Farad (F)






46. Micro






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






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






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






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