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

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






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






4. 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






5. One current path in a parallel circuit; a current path that connects two nodes






6. The unit of electrical current






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






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






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






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






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






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






13. Data Communications equipment






14. American wire gauge; a standardization based on wire diameter






15. A unit of logic in an FPGA that is made up of multiple smaller logic modules and a local programmable interconnect that is used to connect logic modules within the CLB






16. Having two opposites charge carriers within the transistor structure






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






18. The interval of time occupied by a single bit in a sequence of bits; the period of the clock






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






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






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






22. A circuit that prevents loading of an input or output






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






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






25. A method of analog- to- digital conversion using a 1- bit quantization process






26. The mathematics of logic circuits






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






28. The actual current in a branch






29. A circuit with a complete current path






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






31. The process of converting an analog signal to digital form






32. Dual in - line memory module






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






34. Data Terminal equipment






35. 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.






36. 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






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






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






39. A digital counter having ten states






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






41. In relation to VHDL feature that permits operations to be processed in a parallel;that is operations that occur simultaneously






42. A programming language that uses English like words and has a one- to- one correspondence to machine language






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






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






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






46. An electrical instrument used to measure current






47. 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.






48. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.






49. A group of eight bits






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