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






2. A combined coder and decoder






3. The beginning address of a segment of memory






4. A VHDL feature that can be used to predefine the logic function for multiple use throughout a program or programs






5. A binary digit - which can be either 1 or 0






6. A logic gate that produces a High output only when all of the inputs are HIGH






7. A circuit (digital service) that switches digital data from one input line to several output lines in a specified time sequence






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 electrical property of matter that exist because of an excess or a deficiency of electrons. Can be either positive or negative






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






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






12. In a division operation the quantity that is being divided






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. The time from the application of a valid memory address to the appearance of valid output data






15. A condition where all the load currents are equal and the neutral current is zero






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






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






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






19. In addition (Oring) and multiplication (ANDing) of three or more variables - the order in which the variables are grouped makes no difference






20. The graph of a filter's frequency response showing the change in the output voltage to input voltage ratio expressed in dB as a function of frequency for a constant input voltage






21. Characterized by ten states or values






22. A measure of the ability of a reactive circuit to permit current; the reciprocal of impedance. the unit is the siemens






23. A set of interconnections that interface one or more devices based on a standardized specification






24. The rotational rate of a phasor which is related to the frequency of the sine wave that the phasor represents






25. An instrument that can specify each of the other instruments on the bus as either a talker or a listener for the purpose of data transfer.






26. 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.






27. To connect 'end- to- end' as when several counters are connected from the terminal count output of one counter to the enable input of the next counter






28. A digital circuit that compares the magnitudes of two quantiities and produces an output indicating the relationship of the quantities






29. Transistor-Transistor Logic and is implemented with bipolar junction transistors






30. 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


31. The process of rippling an input carry to become the output carry in a full- adder when either or both of the input bits are 1's and the input carry is a 1






32. An electrical instrument used to measure current






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






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






35. A method for the automated testing of printed circuit boards in which the board is mounted on a fixture that resembles a bed of nails that makes contact with test points






36. Altera HDL; a nonstandard HDL






37. The ability of a capacitor to store electrical charge.






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






39. The action of a circuit in which it accepts current into its output from a load






40. One of the three regions in a bipolar Junction transistor(North junction of NpN)






41. A type of semiconductor memory that stores data in the form of charge packets and is serially accessed






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






43. A receiving device on a bus






44. Dynamic random- access memory; a type of semiconductor memory that uses capacitors as the storage elements and is a volatile - read/write memory






45. A type of counter in which each stage is clocked from the output of the preceding stage.






46. 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






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






48. Burst extended data output dynamic random- access memory






49. The effect created when a signal is sampled at less than twice the signal frequency. Aliasing creates unwanted frequencies that interfere with the signal frequency.






50. The number of protons in a nucleus