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  • Question
  • A combinational logic circuit which is used when it is desired to send data from two or more source through a single transmission line is known as


  • Options
  • A. encoder
  • B. decoder
  • C. multiplexer
  • D. demultiplexer
  • E. None of the above

  • Correct Answer
  • multiplexer 


  • Digital Computer Electronics problems


    Search Results


    • 1. The hexadecimal digits are 0 to 9 and A to _____

    • Options
    • A. E
    • B. F
    • C. G
    • D. D
    • E. None of the above
    • Discuss
    • 2. The ALU carries out arithmetic and logic operations. It processes _____ numbers rather than decimal numbers.

    • Options
    • A. decimal
    • B. hexadecimal
    • C. binary
    • D. All of the above
    • E. None of the above
    • Discuss
    • 3. A bus is a group of _____ carrying digital signals.

    • Options
    • A. wires
    • B. gates
    • C. transistors
    • D. registers
    • E. None of the above
    • Discuss
    • 4. In which code the successive code characters differ in only one bit position?

    • Options
    • A. gray code
    • B. excess 3 code
    • C. 8421 code
    • D. algebraic code
    • E. None of the above
    • Discuss
    • 5. Which of the following logic families has the highest noise immunity?

    • Options
    • A. RTL
    • B. DTL
    • C. TTL
    • D. HTL
    • E. None of the above
    • Discuss
    • 6. The simplified form of the Boolean expression (X + Y + XY)(X + Z) is

    • Options
    • A. X + Y + Z
    • B. XY + YZ
    • C. X + YZ
    • D. XZ + Y
    • E. None of the above
    • Discuss
    • 7. The functional difference between SR flip-flop and JK flip-flop is that

    • Options
    • A. JK flip-flop is faster than SR flip-flop
    • B. JK flip-flop has a feed back path
    • C. JK flip-flop accepts both inputs 1
    • D. JK flip-flop does not require external clock
    • E. None of the above
    • Discuss
    • 8. An OR gate has 6 inputs. What is the only input word that produces a 0 output?

    • Options
    • A. 000000
    • B. 000111
    • C. 111000
    • D. 111111
    • E. None of the above
    • Discuss
    • 9. Digital design often starts by constructing a _____ table.

    • Options
    • A. Standard
    • B. Two-stage
    • C. Truth
    • D. Two-dinensional
    • E. None of the above
    • Discuss
    • 10. A _____ TTL device can sink up to 16mA and can source up to 400 MA.

    • Options
    • A. Low-power
    • B. high-power
    • C. Standard
    • D. Schottky
    • E. None of the above
    • Discuss


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