logo

CuriousTab

CuriousTab

Discussion

Home ‣ Computer Science ‣ Digital Computer Electronics Comments
  • Question

  • The time required for a pulse to decrease from 90 to 10 percent of its maximum value is known as


  • Options
  • A. rise time
  • B. decay time
  • C. binary level transition period
  • D. propagation delay
  • E. None of the above

  • Correct Answer
  • decay time 

    • Digital Computer Electronics problems

    Search Results

    • 1. Conversion of decimal number 6710 to it's octal number equivalent is

    • Options
    • A. 1008
    • B. 1038
    • C. 1098
    • D. 998
    • E. None of the above
      • Discuss
    • 2. How many inputs signals can a gate have?

    • Options
    • A. one
    • B. more than one
    • C. two only
    • D. both (a) and (b)
    • E. None of the above
      • Discuss
    • 3. A positive AND gate is also a negative

    • Options
    • A. NAND gate
    • B. NOR gate
    • C. AND gate
    • D. OR gate
    • E. None of the above
      • Discuss
    • 4. An OR gate can be imagined as

    • Options
    • A. switches connected in series
    • B. switches connected in parallel
    • C. MOS transistors connected in series
    • D. All of the above
    • E. None of the above
      • Discuss
    • 5. With a NAND latch a low R and a low S produce a _____ condition.

    • Options
    • A. race
    • B. set
    • C. reset
    • D. no change
    • E. None of the above
      • Discuss
    • 6. Which of the following flip-flops is free from race around problem?

    • Options
    • A. T flip-flop
    • B. SR flip-flop
    • C. master slave JK flip-flop
    • D. All of the above
    • E. None of the above
      • Discuss
    • 7. What logic function is obtained by adding an inverter to the inputs of an AND gate?

    • Options
    • A. OR
    • B. NAND
    • C. XOR
    • D. NOR
    • E. None of the above
      • Discuss
    • 8. A NOR gate has two or more input signals. All input must be _____ to get a high output

    • Options
    • A. low
    • B. high
    • C. some low some high
    • D. 1's
    • E. None of the above
      • Discuss
    • 9. What is the 2's complement of 0011 0101 1001 1100 number?

    • Options
    • A. 1100 1010 1100 1011
    • B. 1100 1010 0110 0011
    • C. 1100 1010 0110 0100
    • D. 1100 1010 1111 1111
    • E. None of the above
      • Discuss
    • 10. Conversion of an octal number 1128 to hexadecimal number is

    • Options
    • A. 4A16
    • B. 5A16
    • C. 1516
    • D. 2016
    • E. None of the above
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.