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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. V or E and Volt (V)






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






3. Micro






4. I and Ampere or Amp (A)






5. 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.






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






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






8. 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.






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






10. P and Watt (W)






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






12. C and Farad (F)






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






14. 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/






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






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






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






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






19. Pico






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






21. Insulating board containing conductive tracks for circuit connections.






22. Insulating board containing conductive tracks for circuit connections.






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






24. C and Farad (F)






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






26. Are and Ohms






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






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






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






30. Mega






31. 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.






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






33. Milli






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






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






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






37. V or E and Volt (V)






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






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






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






41. Nano






42. Are and Ohms






43. Nano






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






45. 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.






46. Kilo






47. 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.






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






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.