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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 bridge circuit that is in the balanced state as indicated by 0 V across the output.






2. A set of conductive paths hat connects the CPU to other parts of the computer to coordinate its operations and to communicate with external devices






3. The current left after the total load current is subtracted from the total current into the circuit






4. A type of magnetic tape format






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






6. A complex programmable logic device that consists basically of muliple SPLD arrays with programmable interconnections.






7. A circuit with a complete current path






8. Information in numeric - alphabetic - or other form.






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






10. Having two values or states; describes a number system that has a base of two and utilizes 1 and 0 as its digits






11. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits






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






13. 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.






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






15. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit






16. One of the three regions in a bipolar junction transistor






17. Consisting of numerals - letters - and other characters






18. A program that converts English- like mnemonics into machine code






19. 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.






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






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






22. A document that specifies parameter values and operating conditions for an integrated circuits or other device






23. Describes a number system with a base of ten






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






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






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






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






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






29. The maximum value of a voltage or current






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






31. The actual current in a branch






32. American National Standards Institute






33. 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






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






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






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






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






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

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39. A reduction of the output signal compared to the input signal - resulting in a ratio with a value of less than 1 for the output voltage to the input voltage of a circuit.






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






41. An electrical instrument used to measure current






42. 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






43. A basic logic operation in which a true(high) output occurs only when all the input conditions are true (high)






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






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






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






47. Dual in - line memory module






48. The portion of the CPU that interfaces with the system buses and fetches instructions - reads operands - and writes results.






49. The main part of a computer responsible for control and processing of data; the core of a DSP that processes the program instructions






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