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 nominally continuous electrical signal that varies in amplitude or frequency in response to changes in sound - light - heat - position - or pressure.






2. A semiconductor device that conducts current in only one direction






3. A notational system for logic symbols that specifies input and output relationships thus fully defining a given function






4. Characterized by ten states or values






5. An asynchronous input used to reset a flip- flop (make the Q output 0); to place a register or counter in the state in which it contains all 0's






6. A group of eight bits






7. The mathematics of logic circuits






8. Sum of all the voltage drops in series equals to the source voltage

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


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






10. 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


11. A digital circuit device that converts coded information into another (familiar) or noncoded form






12. In Boolean algebra - the OR operation






13. The digit generated when the sum of two binary digits exceeds 1






14. In a pulse waveform - the height or maximum value of the pulse as measured from its low level.






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






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






17. 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






18. The maximum value of a voltage or current






19. An adverse condition that could occur if two or more devices try to communicate at the same time on a bus






20. Arithmetic Logic Unit; the key processing element of a microprocessor that perfoms arithmetic and logic operations.






21. Having two opposites charge carriers within the transistor structure






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






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






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






25. A theorem that states that any amount of voltage sources and current sources can be combined into a single current source with a parallel resistor.

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


26. A logic circuit used to add two binary numbers






27. A type of magnetic tape format






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






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






30. In a PLD - a matrix formed by rows of product- term lines columns of input lines with a programmable cell at each junctions. In VHDL - an array is an ordered set of individual items called elements with a single identifier name.






31. The normal level of a pulse waveform; the voltage level in the absence of a pulse.






32. The smallest particle of an element possessing the unique characteristics of that element.






33. Digital Signal Processor; a special type of microprocessor that processes data in real time






34. Stands for Complementary Metal-Oxide Semiconductor and is implemented with a type of field transistor






35. The law that states ORing several variables and then ANDing the single variable with each of the several variables and the ORing the product






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






37. 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


38. A receiving device on a bus






39. A circuit with a complete current path






40. A combination of logic gates interconnected to produce a specified Boolean function with no storage or memory capability; sometimes called combinatorial logic






41. Data Terminal equipment






42. To decrease the binary state of a counter by one






43. Dual in - line memory module






44. Burst extended data output dynamic random- access memory






45. 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






46. In addition (ORing) and multiplication (ANDing) of two variables the order in which the variables are ORed or ANDed makes no difference






47. A combined coder and decoder






48. A type of inductor used to block or choke off high frequencies






49. Altera HDL; a nonstandard HDL






50. A type of bistable multivibrator in which the output assumes the state of the D input on the triggering edge of a clock pulse.