Test your basic knowledge |

Digital Fundamentals

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 combined coder and decoder






2. An electrical instrument used to measure current






3. The maximum value of a voltage or current






4. A digital circuit capable of counting electronic events - such as pulses - by progressing through a sequence of binary states.






5. The application of a dc voltage to an electronic device to produce a desired mode of operation






6. A series of bits describing a final design that is sent to the target device during programming






7. A unit of the cross - sectional area of a wire.






8. A receiving device on a bus






9. Having two stable states. Flip- flops and latches are bistable multivibrators.






10. The VHDL unit that describes the internal operation of a logic function; the internal functional arrangement of the elements that give a device its particular operating characteristics.






11. The number of protons in a nucleus






12. A class of integrated logic circuits that is implemented with a type of field effect transistor






13. An application program in development software packages that controls the design flow process and translates source code into object code in a format that can be logically tested or downloaded to a target device






14. A two terminal circuit containing voltage sources - current sources - and resistors can be modeled as a voltage source in series with a resistor






15. An electrical device consisting of two conductive plates separated by an insulating material and possessing the property of capacitance.






16. A software compiler language for SPLD programming; a type of hardware description language (HDL)






17. Having no stable state. An astable multivibrator oscillates between two quasi- stable states.






18. Having two directions. the stored data can be shifted right or left






19. The basic timing signal in a digital system; a periodic waveform in which the interval between pulses equals the time for one bit; the triggering input of a flip- flop






20. A code within DOS that allows various operations on files and includes a primitive assembler; to eliminate a problem in hardware or software.






21. A connection at the midpoint of a winding in a transformer






22. Direct memory access; a method to directly interface a peripheral device to memory without using the CPU for control






23. An array of AND gates consisting of a matrix of programmable interconnection






24. The process of producing an output carry in full- adder when both input bits are 1s.






25. The mathematics of logic circuits






26. The average of a sine wave over one half- cycle. It is 0.637 times the peak value.






27. A combination of input literals that cannot occur and can be used as a 1 or 0 on a Karnaugh Map for simplification

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


28. A type of IC package whose leads must pass through holes to the other side of a PC board






29. A type of PLD nonvolatile programmable link that can be left open or can be shorted once as directed by the program






30. A filter that rejects a range of frequencies lying between two critical frequencies and passes frequencies above and below that range.






31. In addition - the number that is added to another number called the augend






32. Basic input/output system; a set of programs in ROM that interfaces the I/) devices in a computer system






33. The beginning address of a segment of memory






34. Bipolar junction transistor; a semiconductor device used for switching or amplification. A BJT has two junctions - the base- emitter junction and the base- collector junction






35. The range of frequencies for which the current (or output voltage) is equal to or greater than 70.7% of its value at the resonant frequency that is considered to be passed by a filter.






36. A filter that passes a range of frequencies lying between two critical freqencies and rejects frequencies above and below that range.






37. The process that prevents two sources from using a bus at the same time






38. The unit of electrical current






39. Data Communications equipment






40. The total number of data units(bits - nibbles - bytes - words) that a memory can store.






41. A type of semiconductor memory having capacitive storage cells that lose stored data over a period of time and therefore must be refreshed.






42. A interconnection of electrical components designed to produce a desired result. A basic circuits consists of a source - a load and an interconnecting current path.






43. The ratio of pulse width to period expressed as a percentage






44. A program that translates an assembly language program for one type of microprocessor to an assembly language for another type of microprocessor






45. Sum of all currents entering a node is equal to the sum of all currents leaving the same node

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


46. A device used to convert an analog signal to a sequence of digital codes






47. A number given in ampere- hours determined by multiplying the current times the length of the time (h) a battery can deliver that current to a load






48. In Boolean algebra - the OR operation






49. Burst extended data output dynamic random- access memory






50. An energy source that uses a chemical reaction to convert chemical energy into electrical energy.