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  • Question

  • When data input I4 of a 74148 octal-to-binary encoder is active, the data output is:
    A0 = 1
    A1 = 1
    A2 = 0


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 

    • MSI Logic Circuits problems

    Search Results

    • 1. Incandescent 7-segment displays are especially well suited for use in portable battery-operated devices.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. When data input I5 of a 74148 octal-to-binary encoder is active, the data output is:
      A0 = 1
      A1 = 0
      A2 = 0

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. In order to select data input I1 of a 74151 eight-line multiplexer, the select inputs must be:

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. The outputs of the 74138 octal decoder are enabled when the enable inputs are
      .

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. The 74139 dual four-line demultiplexer functions as a demultiplexer if data input is on the line.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. In HDL, the operation of the DEMUX is exactly described using a ________.

    • Options
    • A. function
    • B. process
    • C. variable type
    • D. number of conditional signal assignment statements
      • Discuss
    • 7. When an application, such as an encoder, calls for a unique response from a circuit corresponding to a combination of its input variables, the two methods that best serve this purpose are the ________ and the ________.

    • Options
    • A. CASE construct, truth TABLE
    • B. if then statement, elsif statement
    • C. VARIABLE, PROCESS
    • D. FUNCTION, TYPE
      • Discuss
    • 8. A typical AHDL comparator follows an algorithm described as ________.

    • Options
    • A. FUNCTION constructs
    • B. CASE constructs
    • C. IF/ELSE constructs
    • D. PROCESS constructs
      • Discuss
    • 9. 

      For the inputs shown in the given figure, the outputs for P > Q, P = Q, and P < Q are ____, ____, and ____, respectively.


    • Options
    • A. 1,1,1
    • B. 1,0,1
    • C. 1,0,0
    • D. 0,1,0
      • Discuss
    • 10. In most modern computers, the transfer of data takes place over a common set of connecting lines called a ________.

    • Options
    • A. data bus
    • B. bus line
    • C. bus cable
    • D. data line
      • Discuss

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